Highlights of Quantum Information (DQI) Talks @ APS 2024 March Meeting
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TABLE 1: Highlights of Quantum Information (DQI) Talks @ APS 2024 March Meeting
| Paper | Author(s) | |
|---|---|---|
| 1 | Quantum Coding Transitions in The Presence of Boundary Dissipation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we demonstrate a rich dynamical phase diagram in a one-dimensional quantum many-body system subject to dissipation at the boundary, displaying different regimes distinguished by the fate of quantum information at late times. |
Izabella Lovas ; Sagar Vijay ; Utkarsh Agrawal; |
| 2 | Lieb-Schultz-Mattis Theorem in Open Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we extend the LSM theorem to open quantum systems and establish a general theorem that restricts the steady state and spectral gap of Liouvillians based solely on symmetry. |
Kohei Kawabata ; Ramanjit Sohal ; Shinsei Ryu; |
| 3 | Monitored Dynamical Quantum Matter of Free Fermions: Symmetry Classification and Field Theory Description Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present a general theoretical framework to study the universal behavior of monitored free-fermion dynamics. |
Chao-Ming Jian ; Hassan Shapourian ; Bela Bauer ; Andreas Ludwig; |
| 4 | Entanglement Phase Transition Due to Reciprocity Breaking Without Measurement or Post-selection Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The observation of entanglement phase transitions in many-body systems subject to competition between unitary and non-unitary dynamics faces the fundamental barrier of post-selection problem. In this work, we sidestep this issue by considering only fully unitary dynamics. |
Gideon Lee ; Tony Jin ; Yuxin Wang ; Alexander McDonald ; Aashish Clerk; |
| 5 | Dynamical Phase Transitions Induced By Conditional Mutual Information’s Propagation Beyond The Lightcone Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In our study of an N-qubit system subjected to noisy random unitary gates with an error rate p, we observe and analyze the dynamical phase transition of entanglement at the thermodynamic limit where N → ∞ and p → 0. |
Su-un Lee ; Changhun Oh ; Yat Wong ; Liang Jiang; |
| 6 | Measurement-induced Quantum Phase Transition with Classically Diffusing Measurers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we show that the universality class of the MIPT drastically alters when the system is coupled to a diffusing conserved density. |
Hyunsoo Ha ; Akshat Pandey ; Sarang Gopalakrishnan ; David Huse; |
| 7 | Observing Measurement-induced Entanglement Transitions Using A Mixed-state Entanglement Measure Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we employ the configuration coherence to demonstrate that entanglement in both the trajectories and master equation approaches reveal the MIT. |
Christian Carisch; |
| 8 | Transitions of Distinguishability and Entanglement in Monitored Dynamics of Bosons Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This is because the photon loss effect can be manipulated in such optical systems. In this work, we characterize such non-unitary dynamics through the distinguishability of bosons, which is related to the computational complexity. |
Ken Mochizuki ; Ryusuke Hamazaki; |
| 9 | Measurement and Feedforward Induced Entanglement Negativity Transition Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study the interplay between measurement-induced dynamics and conditional unitary evolution in quantum systems. |
Ramis Movassagh ; Alireza Seif ; Yu-Xin Wang ; Aashish Clerk; |
| 10 | Absence of Entanglement Transition Due to Feedback-induced Skin Effect Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We find that certain open boundary systems under "generalized monitoring", consisting of "projective monitoring" and conditional feedback, display an anomalous late-time particle concentration on the edge, reminiscent of the "skin effect" in non-Hermitian systems. |
Jie Ren; |
| 11 | Measurement Induced Phase Transition with An Extended Log-law Phase in An Integrability-broken Transverse Field Ising Model Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Measurement induced entanglement phase transitions in many-body quantum systems are an important aspect of study in monitored quantum circuits due to their fundamental role in any … |
Monalisa Singh Roy ; Jonathan Ruhman ; Emanuele Dalla Torre ; Efrat Shimshoni; |
| 12 | Observing Measurement Induced Entanglement Transitions Via A Tensor Network Based Hybrid Quantum Algorithm Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: An MPS can thus well-approximate the experimental state above $p_{c}$ but fail exponentially below it. We propose using the breakdown of this approximation to pinpoint the critical point. |
Yariv Yanay ; Charles Tahan ; Brian Swingle; |
| 13 | New Critical States Induced By Measurement Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we study the effect of measurement and postselection on the critical ground state of a Luttinger liquid theory and show that it can lead to qualitatively new critical states. |
Xinyu Sun ; Shao-Kai Jian ; Hong Yao; |
| 14 | The Emergence of State Collapse and Thermalization in The Geometric Quantum State of Two Sites in An Extended Hubbard Chain Undergoing Unitary Evolution Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we study the GQS of one and two sites of a 1D extended Hubbard model and report the resulting phenomenology. |
Emily Townsend ; Garnett Bryant ; Fabio Anza; |
| 15 | Scrambling and Operator Entanglement in Local Non-Hermitian Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that while OTOCs fail to capture information scrambling in a simple, local, non-Hermitian transverse-field Ising model, the closely related operator entanglement is a robust measure of dynamical properties of interest. |
Brian Barch ; Namit Anand ; Jeffrey Marshall ; Eleanor Rieffel ; Paolo Zanardi; |
| 16 | Information Scrambling in Free Fermion Systems with A Sole Interaction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: It is well-established that the presence of single impurity can have a substantial impact on the transport properties of quantum many-body systems at low temperature. In this work, we investigate a close analog of this problem from the perspective of quantum information dynamics. |
Qucheng Gao ; Pengfei Zhang ; Xiao Chen; |
| 17 | Dynamical Information Preservation with Dissipative Time Crystals Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate that the time-crystalline behaviour observed in the thermodynamic limit of dissipative systems can be utilised to preserve dynamical information. |
Mert Esencan ; Alex Lvovsky ; Berislav Buča; |
| 18 | Scrambling of Algebras in Open Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this paper, we introduce an algebraic OTOC (A-OTOC) that allows us to study information scrambling of generalized quantum subsystems under quantum channels. |
Namit Anand ; Paolo Zanardi ; Faidon Andreadakis; |
| 19 | Quantum Avalanche on Infinite Ribbon-like Lattice with Disorder Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We develop a 2D infinite long ribbon-like disordered electronic system coupled to an electronic bath and the electron-phonon interaction is also considered in the system. |
Xi Chen ; Jong Han; |
| 20 | Avalanche Instability As Nonequilibrium Quantum Criticality Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Analytic theory, supported by numerical calculations, establishes that the quantum avalanche, an abrupt nonequilibrium occupation of excited bands, results from the competition between the collapse of the band minimum via the phonon emission and the dephasing of the electron with the environment. |
Jong Han ; Xi Chen; |
| 21 | Quantum Electrodynamics Under A Quench Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate the nonequilibrium regime of quantum electrodynamics following a global quantum quench on the mass of the fermion. |
Ming-Rui Li ; Hong Yao ; Shaokai Jian; |
| 22 | OTOCs Beyond Semiclassics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we study the interplay of hydrodynamics and quantum chaos by searching for universal properties of OTOCs in systems where hydrodynamics emerges. |
Ruchira Mishra ; Luca Delacretaz; |
| 23 | The Interplay of Finite and Infinite Size Stability in Quadratic Bosonic Lindbladians Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This has been linked to anomalous dynamical phenomena in truncated systems, notably, dynamical metastability – transient amplification preceding asymptotic relaxation, in parameter regimes where the finite-size system is dynamically stable. In this work, we report on the identification of QBLs which host an opposite flavor of dynamical metastability, namely, such QBLs that are dynamically stable in the infinite-size limit, but become unstable under open boundaries, for arbitrary system size. |
Mariam Ughrelidze ; Vincent Flynn ; Emilio Cobanera ; Lorenza Viola; |
| 24 | Simulating Quantum Dynamics in Two-dimensional Lattice with Tensor Network Influence Functional Approach Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This extension is achieved by approximating influence functional tensors as locally separable matrix product states (MPS). |
Gunhee Park ; Garnet Chan; |
| 25 | One Dimensional Free Entanglement Hamiltonians for Off Critical Systems and in The Presence of Defects Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we use high precision numerics to directly calculate the entanglement Hamiltonian for the critical and off critical Ising chain in the presence of defects, for connected and disconnected subsystems. |
Gavin Rockwood; |
| 26 | Numerical Reconstruction of Entaglement Hamiltonians Using Matrix Product States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The main contribution of this work is to introduce a way to find nice easy to understand EHs numerically. |
David Rogerson; |
| 27 | Certifying Highly-entangled States from Few Single-qubit Measurements Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we prove that almost all n-qubit target states, including those with exponential circuit complexity, can be certified from only O(n 2) single-qubit measurements. |
Hsin-Yuan Huang; |
| 28 | Attention to Quantum Complexity Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: I will discuss using different modalities of the attention mechanism on computational basis measurements to tackle the challenge in three different settings: (1) learning topological order from noisy data, (2) witnessing the entanglement transition, (3) learning the complexity of random quantum circuit data. |
Eun-Ah Kim; |
| 29 | Applying Machine Learning Insights to Quantum Information Challenges Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we explore the confluence of machine learning techniques with diverse challenges in quantum information, touching upon Hamiltonian learning, measurement analysis, entanglement detection, algorithm design, and error-correcting codes construction. |
Bei Zeng; |
| 30 | Intelligent Infrared Sensing Enabled By Moiré Quantum Geometry: Experiment and Theory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By integrating advances in moiré quantum materials and deep learning, we demonstrate an all-in-one intelligent sensing scheme for light in mid-infrared regime at 79 K [1]. |
Patrick Cheung; |
| 31 | Interacting Random-field Dipole Defect Model for Heating in Semiconductor-based Qubit Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present analytic and numerical results for the model. |
Yujun Choi ; ROBERT JOYNT; |
| 32 | Error Attribution for Singlet-triplet Qubits Through Randomized Benchmarking in The Presence of Temporally Correlated Noise Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we model the influence of temporally correlated noise on a qubit in the singlet-triplet encoding, for which logic operations are generated by the exchange interaction and a magnetic field gradient between electrons in neighboring quantum dots. |
Malick Gaye ; Jacob Henshaw ; Rohith Vudatha ; Dylan Albrecht ; Steve Young ; Dwight Luhman ; Ryan Jock ; Noah Jacobson; |
| 33 | Analyses of Auto and Cross Power Spectral Densities of Semiconductor Spin Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present techniques based on Monte Carlo simulations and Bayesian analysis to calculate qubit auto-power spectral density (APSD) and cross-power spectral density (CPSD). |
Hruday Mallubhotla ; Yujun Choi ; Mark Friesen ; Susan Coppersmith ; ROBERT JOYNT; |
| 34 | Global Control of Spin Qubits in SiMOS Quantum Dots Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will describe how a global control field can be used for addressing all qubits simultaneously. |
Arne Laucht; |
| 35 | A Generalized Model of The Noise Spectrum of A Two-level Fluctuator in The Presence of An Electron Subbath Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The work of Ahn (PRB 103, L041304) derives the noise power spectrum of a two-level fluctuator (TLF) in the case that it interacts only with a subregion of a full electron bath and thus is subject to a fluctuating temperature. |
Robert Throckmorton; |
| 36 | Characterization of Individual Charge Fluctuators in Si/SiGe Quantum Dots – Part I Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Using the Allan variance, we determine the switching times of individual TLFs. |
Ammar Ellaboudy ; Feiyang Ye ; John Nichol; |
| 37 | Characterization of Individual Charge Fluctuators in Si/SiGe Quantum Dots – Part II Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We find that the TLF switching rates increase with temperature, and the current through the quantum dot appears to heat the TLFs. |
Feiyang Ye ; Ammar Ellaboudy ; John Nichol; |
| 38 | Multi-scale Simulation Framework for Calculation of Charge Noise Induced Dephasing Time of Hole Spin Qubits in Si FinFETs Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present a simulation framework that is capable of calculating the qubit’s dephasing time T 2 * at 1K and use a recently reported hole spin qubit in a Si FinFET to test it [1]. |
Qian Ding ; Ilan Bouquet ; Mathieu Luisier ; Andreas Schenk; |
| 39 | In-situ Charge Noise Probe Through The Valley Splitting Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Although charge noise has been characterized through power spectral density measurements, it has not been measured during qubit operation. Therefore, we propose a method for measuring voltage fluctuations in situ by coupling a microwave resonator to the valley degree of freedom of the silicon spin qubit. |
David Kanaar ; Jason Kestner; |
| 40 | Light-induced Offset Charge Tracking in Si/SiGe Quantum Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we imitate such radiation impacts in Si/SiGe quantum devices using a fiber optic connection in a 3K cryogenic refrigerator to deposit energy from multiple 1.6 eV photon-impacts on the back side of the host silicon substrate. We show that such photon impacts shift the Coulomb blockade behavior of gate-defined quantum dots. |
Brighton Coe ; Michael Wolfe ; Jared Benson ; Tyler Kovach ; Alysa Rogers ; Deanna Campbell ; Donald Savage ; Max lagally ; Shimon Kolkowitz ; Mark Eriksson; |
| 41 | Defect Identification of Atomic Layer Deposited Aluminum Oxide Using Kelvin Probe Force Microscopy Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This work represents a unique and novel approach to imaging and identifying point defect distributions down to individual defects and can even distinguish multiple overlapping defects in some cases. |
Leah Tom ; Zachary Krebs ; Joel Varley ; Emily Joseph ; Mark Eriksson ; Keith Ray ; Vincenzo Lordi ; Victor Brar ; Susan Coppersmith ; Mark Friesen; |
| 42 | Two-spin Relaxation in A Silicon Quantum Dot Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study spin relaxation for a two-electron silicon quantum dot. |
Courtney Fitzgerald ; Xuedong Hu; |
| 43 | A Study of Low-lying Eigenstates in A Two-electron Silicon Quantum Dot Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present a comprehensive study of low-lying singlet and triplet states in a two-electron Si quantum dot in the context of spin measurement in the spin blockade regime. |
Xuedong Hu ; Bilal Tariq; |
| 44 | Simulating Superconducting Circuits with Scqubits… and The Impact of Open-source Software on Quantum-science Related Research Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: One important area of QIS research involves building software tools that allow for accurate modeling and simulations of early quantum computing devices. In this talk, besides giving a brief overview of the current landscape of such tools, I will discuss scqubits[1]: an open-source Python package for simulating and analyzing superconducting circuits – arguably one of the leading approaches to building early quantum computers. |
Peter Groszkowski; |
| 45 | Effective Master Equation Modeling of Correlated Noise Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we discuss how the PLME approach can be extended to describe more complicated setups involving many interacting qubits, subject to noise that is both correlated in space and time. |
Antoine Brillant ; Peter Groszkowski ; Alireza Seif ; Jens Koch ; Aashish Clerk; |
| 46 | Utilizing Discrete Variable Representations to Capture Phase Slips and Persistent-Current Vortices in Superconducting Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we consider the use of discrete variable representations (DVRs) to construct a basis. |
Brittany Richman ; Christopher Lobb ; Jacob Taylor; |
| 47 | Toward Multiscale Simulations for Technology Computer-aided Design of Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present transmon simulations using an adaptive meshing algorithm enabling accurate capacitance extraction despite challenges posed by singularities such as corners and embedded surfaces, which are typical of superconducting-qubit structures. |
Felix Beaudoin ; Fadime Bekmambetova ; Igor Benek-Lins ; Aldilene Saraiva-Souza ; Hong Guo; |
| 48 | QFit: Simplifying Calibration and Parameter Fitting for Superconducting Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present QFit, a Python-based application for extracting parameters of superconducting circuits from measured spectroscopy data. |
Danyang Chen ; Tianpu Zhao ; Jens Koch; |
| 49 | Coupled Scattering Parameter Calculation for Superconducting Quantum Circuit Simulation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we bridge the gap between CSC methods and traditional quantum analysis to provide a modular and computationally efficient method for superconducting circuits simulation. |
Mattis Hallén ; Jules Craquelin ; Sebastien Jezouin ; Alexandre Journeaux ; Raphael Lescanne ; Salim Miklass ; Felix Rautschke ; Pierre Wan-Fat ; Pierre Guilmin; |
| 50 | An Integrated Workflow for The Seamless Design of Superconducting Qubits – QuantumPro Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we introduce an elegant solution that consolidates five essential functionalities into a single platform for the very first time. |
Mohamed Hassan; |
| 51 | Going from Hamiltonian to GDS File: An Open Source Package for Generating Qubit Designs Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce SQuADDS, a Superconducting Qubit And Device Design Simulation database, an open-source design database and simulation package engineered for the rapid design of superconducting qubit architectures. |
Sadman Ahmed Shanto ; Andre Kuo ; Clark Miyamoto ; Haimeng Zhang ; Vivek Maurya ; Evangelos Vlachos ; Malida Hecht ; Eli Levenson-Falk; |
| 52 | Gradient-Based Optimization of Superconducting Quantum Circuit Designs — Part 1 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We illustrate how to design and discover qubits using SQcircuit’s auto-differentiation capabilities. Part 1: In this part of a multi-part talk, we discuss background and the implementation of optimization routines. |
Taha Rajabzadeh ; Alexander Boulton-McKeehan ; Sam Bonkowsky ; Amir Safavi-Naeini; |
| 53 | Gradient-Based Optimization of Superconducting Quantum Circuit Designs — Part 2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, designing and discovering these circuits can be challenging due to the vast parameter space and the numerous criteria that need to be satisfied for these circuits to operate optimally. Therefore, we believe that using optimization methods can automate and facilitate the design and discovery process.In this presentation, we highlight the new auto-differentiation features of our software, SQcircuit. |
Taha Rajabzadeh ; Alexander Boulton-McKeehan ; Sam Bonkowsky ; Amir Safavi-Naeini; |
| 54 | Analysis of Josephson Junction Arrays Beyond The Single-mode Approximation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: An accurate description of such circuits is fundamental for their use in quantum processors as they continue to be scaled up. These circuits are often studied using an approximate one-mode model which disregards higher-energy array modes. |
Ian Mondragon-Shem ; Aditya Gandotra ; Matthew Capocci ; Andrew Houck ; Jens Koch; |
| 55 | Fast, Optimal Circuit Design of Multiplexed Readout Resonators with Individual Purcell Filters Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Instead, we present a circuit-based simulation approach together with a computationally efficient, closed-loop optimization of the entire readout circuit. |
David Pahl ; Lukas Pahl ; Max Hays ; Kyle Serniak ; Jeffrey Grover ; William Oliver; |
| 56 | Charge-parity Switching Effects and Optimisation of Transmon-qubit Design Parameters Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we identify optimal ranges for qubit design parameters, grounded in comprehensive noise modeling. |
Miha Papic ; Jani Tuorila ; Adrian Auer ; Inés de Vega ; Amin Hosseinkhani; |
| 57 | Superconducting Quantum Processor Tune-up Automation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we will demonstrate the results of our software on a 5-qubit chip with transmon qubits by QuantWare in Bluefors DL400 dilution refrigerator, and measured using QBlox and Quantum Machines control electronics. |
Dominic Lennon; |
| 58 | Fully Automated Comprehensive Characterization and Bring-up of Superconducting Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we introduce the Qruise scalable framework for automated bring-up and characterization of superconducting quantum processors. |
Shai Machnes ; André Melo ; Roman Razilov ; William Steadman ; Alastair Marshall ; Ana Laura Gramajo ; Shinibali Bhattacharyya ; Yousof Mardoukhi ; Deepak Khurana ; Marc Bernot ; Anurag Saha Roy; |
| 59 | Engineering of Superconducting Quantum Computers at Utility-scale Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will focus primarily on scaling challenges outside of the cryogenic environment in terms of control hardware, system software, compilation, and service design. |
Blake Johnson; |
| 60 | RSFQ Programmable Digital Multi-Tone Generator for Quantum Circuits Control Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work I present a novel device with the potential to be used for the control of frequency multiplexed arrays of qubits or SNSPDs using well established Rapid Single Flux Quantum (RSFQ) technology. |
Joao Barbosa ; Jack Brennan ; Jonathan Collins ; Alessandro Casaburi ; Martin Weides ; Alex Kirichenko ; Oleg Mukhanov; |
| 61 | Measurement of Leakage to Higher Qubit Levels When Using SFQ Digital Control Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: While this qubit control scheme is simple and easy to implement, the fidelity of the digital gate operations is generally limited by leakage to higher qubit levels when operated in the traditional resonant mode using a train of periodic pulses. In this presentation, I will show an experimental analysis of the leakage when using SFQ resonant drive signals and discuss how we plan to mitigate this issue in future implementations. |
Manuel Castellanos-Beltran ; Adam Sirois ; David Olaya ; John Biesecker ; Samuel Benz ; Peter Hopkins; |
| 62 | Fast Gates for Slow Fluxonium Qubits Using Single Flux Quantum Control Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a new family of sequences that provides faster gates. |
Lucas Rogers ; Oleg Mukhanov ; Maxim Vavilov; |
| 63 | Digital Bit Pattern Based Control of Transmon Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We observe 99.8% single qubit gate fidelity for 50 ns gates. |
Pasi Lähteenmäki ; Ugur Yilmaz ; Aleksei Sharafiev ; Olli-Pentti Saira; |
| 64 | Using Integrated Photodiodes Towards Scalable Superconducting Quantum I/O Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Alternatively, microwave tones for superconducting qubit control and readout can be generated directly inside cryogenic environments using bulk photodiodes [3]. In this work, we discuss results using an integrated photodiode as a source for superconducting transmon qubit readout tones at millikelvin temperatures, and possible paths forward for improving this technology to better mitigate issues associated with scaling superconducting quantum systems. |
Samuel Schwab ; Alexander Madden ; Michael Senatore ; Erin Sheridan ; Daniel Campbell ; Joseph Falvo ; Derrick Sica ; Andrew Brownell ; Nicholas Barton ; Michael Fanto ; Matthew LaHaye; |
| 65 | Attainment of SS < 10 MV/dec at 4 K in In-situ Passivated Planar Bulk GaAs MOSFETs: Alternative Cryogenic Electronics Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Cryogenic readout and control are on-demand for scalable and high-performance quantum computers. InGaAs high-electron-mobility transistors (HEMTs) and Si complementary … |
Lawrence Young ; Jun Liu ; Hsien-Wen Wan ; Yen-Hsun Glen Lin ; Yi-Ting Cheng ; Bo-Yuan Chen ; Kun-Ming Chen ; Hsiao-Wen Chang ; Ming-Jye Wang ; Jueinai Kwo ; Minghwei Hong; |
| 66 | Cryo-CMOS Flux Control Generator for Tunable Transmons Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we evaluate the impact of electronics noise on flux tunable transmons controlled with a cryo-CMOS current generator, fabricated in 14nm FinFET technology, and thermalized to the T=4K plate of a dilution refrigerator. |
Devin Underwood ; Joseph Glick ; Ken Inoue ; Daniil Frolov ; John Timmerwilke ; David Frank ; Scott Lekuch ; Raphael Robertazzi ; Sudipto Chakraborty ; Kevin Tien ; Mark Yeck ; John Bulzacchelli ; Chris Baks ; Dorothy Wisnieff ; Brian Gaucher ; Daniel Friedman; |
| 67 | High-dimensional Antimony Atoms in Silicon for Photonic Entangled State ‘Machine Gun’ Quantum Error Correction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Due to its multi-level energy structure, a single antimony atom can emit up to 7 different frequency photons through electric dipole transitions, enabling the creation of multi-qubit entangled photonic states. We analyze these states with respect to foliated quantum codes. |
Gözde Üstün ; Samule Elman ; Andrew Doherty ; Andrea Morello ; Simon Devitt; |
| 68 | Discovering Compact Quantum Circuits for Fault-Tolerant Logical State Preparation with Reinforcement Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we use reinforcement learning (RL) to automatically discover compact quantum circuits that prepare the logical state of a QEC code fault-tolerantly with the flag-based protocol for a given qubit connectivity and gate set. |
Remmy Zen ; Jan Olle Aguilera ; Luis Colmenarez ; Matteo Puviani ; Markus Müller ; Florian Marquardt; |
| 69 | Active Steering Into Quantum Stabilizer Codespace with Reinforcement Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a technique to actively maintain a quantum stabilizer codestate in the codespace even under the influence of decoherence. |
Anirudh Lanka ; Prithviraj Prabhu ; Shashank Hegde ; Todd Brun; |
| 70 | Automatic Discovery of Quantum Error Correction Codes with A Noise-Aware Reinforcement Learning Agent Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we realize a deep reinforcement learning agent that automatically discovers QEC codes and their encoding circuits for a given gate set and error model. |
Jan Olle ; Remmy Zen ; Matteo Puviani ; Florian Marquardt; |
| 71 | Translating Back and Forth Between Braided and Lattice Surgery Surface Code Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Herein, we present a systematic method to translate between and LS and braided diagrams. |
Alexandru Paler; |
| 72 | Fault-tolerant Measurement-free Quantum Error Correction with Multi-qubit Gates Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In order to investigate fault tolerance systematically, we introduce an efficient method to classically simulate MFQEC circuits with (i) Clifford gates for syndrome extraction, (ii) ancilla-controlled Pauli operations for decoding, and (iii) a Pauli noise model. |
Michael A. Perlin ; Vickram Premakumar ; Jiakai Wang ; Mark Saffman ; ROBERT JOYNT; |
| 73 | Gapped Quantum Matter and Error-Correction with Adiabatic Quantum Channels Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this case, the ground-space is representative of a stable phase of quantum matter. We argue that the stability of this quantum phase is directly related to a set of coherent error processes against which this quantum error-correcting code is robust. |
Ali Lavasani ; Sagar Vijay; |
| 74 | Tapestry of Dualities in Decohered Quantum Error Correction Codes and A Bound on Error Threshold Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We argue that the error threshold belongs to a family of decoherence-induced phase transitions (DIPT) of the QEC codes, which are signaled by the singularities of the Rényi entropies of the code after decoherence caused by the errors. |
Zhou Yang ; Kaixiang Su ; Yuri Lensky ; Cenke Xu ; Chao-Ming Jian; |
| 75 | Dissipative Phase Transitions and Passive Error Correction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We classify different ways to passively protect classical and quantum information, i.e. we do not allow for syndrome measurements, in the context of local Lindblad models for spin systems. |
Simon Lieu ; Yu-Jie Liu; |
| 76 | Measure and Forget Dynamics in Random Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This paper investigates the behavior of measurement-induced phase transitions (MIPT) in random Clifford circuits when measurement outcomes are partially forgotten. |
Yucheng He ; Todd Brun; |
| 77 | Propagation of Quantum Information in Tree Networks: Noise Thresholds for Infinite Propagation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In the classical setting, where each node copies the input bit into multiple output bits, this model has been studied as the tree broadcasting or reconstruction problem. In this work, we study its quantum version: consider a Clifford encoder at each node that encodes the input qubit in a stabilizer code. |
Shiv Akshar Yadavalli ; Iman Marvian; |
| 78 | Entanglement Bounds from Cayley Graphs Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce a quotient procedure on Cayley graphs which reproduces, and generalizes, state reachability graphs. |
William Munizzi ; Cynthia Keeler ; Jason Pollack; |
| 79 | Engineering Robust Logical Qubits from Bose-Einstein Condensates in Circuit QED Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a setup for a logical qubit built from SC qubits flux-coupled to a microwave cavity mode. |
Reja Helene Wilke ; Leonard Pingen ; Sebastian Paeckel; |
| 80 | The Optimal Depth of Variational Quantum Algorithms Is Hard to Compute, Even Approximately Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we show that approximating the optimal depth for a given VQA ansatz is intractable. |
Sevag Gharibian ; Martin Kliesch ; Lennart Bittel; |
| 81 | Tradeoffs in Hybrid Quantum-classical Algorithms for Designing Quantum Optimal Controls Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: A persistent challenge in this field stems from the prohibitive cost of simulations, which are needed to inform quantum control advances in the laboratory. In this talk, we explore the costs and tradeoffs of performing quantum optimal control simulations based on the GRAPE and CRAB algorithms, when these algorithms are formulated as hybrid quantum-classical algorithms. |
Alicia Magann ; Andrew Baczewski ; Max Porter ; Mohan Sarovar; |
| 82 | Sequential Quantum Simulation with Circuit QED Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we outline how circuit quantum electrodynamics (cQED) devices, each consisting of a transmon qubit coupled to a long-lived cavity mode, can be used to simulate the ground state of a highly-entangled quantum many-body spin chain. |
Yuxuan Zhang ; Andrew Potter ; Shahin Jahanbani ; Shyam Shankar ; Ameya Riswadkar ; Michael Zalatel ; Taige Wang; |
| 83 | Towards Quantum Simulation of Confining Gauge Theories at Finite Temperature and Density Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Recently it has been suggested that digital and analog quantum hardware could provide pathways to efficiently simulate such systems. In this work, we adapt numerical tools based on imaginary time evolution, originally developed to simulate strongly correlated condensed matter systems, to study this problem. |
I Chi Chen ; Jo~{a}o Getelina ; Klee Pollock ; Peter Orth ; Yong-Xin Yao ; Srimoyee Sen ; Thomas Iadecola; |
| 84 | Calculation of Nucleon-pair Transition Intensities on A Quantum Computer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To this end we mapped the bosonic two-level Hamiltonian, describing the motion of nucleon pairs in two j-shells with identical pair degeneracy Ω, into the Hilbert space of the quantum device. |
Eduardo Coello Perez ; Augusto Macchiavelli; |
| 85 | Idealistic Dynamical Simultions of Quantum Multi-dimensional Quantum-manybody Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This was a big development for the field of computational condensed matter physics, but this does not encompass a big group of researchers studying multi-dimensional quantum many body systems. With this project I aim to test the limits of the use of quantum computers within condensed matter research by using them to study well known and established spin systems in multiple dimensions, including spin direction and lattice dimensionality. |
Chevy Cecil; |
| 86 | Noise-Resilient Trial-State Optimization Algorithm for Quantum Gap Estimation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we revisit the hybrid quantum gap estimation (QGE) algorithm [1] that combines Trotterized time evolution on a quantum processor with the classical fast Fourier transform of the damped time propagator to estimate the energy gaps of a many-body model to within a certain tolerance. |
Woo-Ram Lee ; Nathan Myers ; Vito Scarola; |
| 87 | Quantum Imaginary Time Evolution on 1D Infinite-size Lattice Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: I will show how to implement the quantum imaginary time evolution (QITE) and QLanczos algorithms on a 1D infinite-size lattice. |
Hao-Ti Hung ; Tung Tsao ; Ying-Jer Kao; |
| 88 | Quantum Digital Simulation of The Nuclear De-excitation of Tritium Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our work can be extended to other quantum systems, such as quantum chemistry, atomic physics and photonics. |
Luca Nigro ; Enrico Prati; |
| 89 | Realizing A Parametrically Coupled Lattice of Superconducting Qubits for Quantum Simulation with A Synthetic Magnetic Field Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we introduce a scheme to emulate the dynamics of charge carriers through a magnetic field by parametrically driving hopping of microwave photons between transmon qubits. |
Ilan Rosen ; Sarah Muschinske ; Cora Barrett ; Max Hays ; Amir Karamlou ; Patrick Harrington ; Rabindra Das ; David Kim ; Bethany Niedzielski ; Jonilyn Yoder ; Mollie Schwartz ; Kyle Serniak ; Jeffrey Grover ; William Oliver; |
| 90 | Photon-Mediated Interactions in Quasi-1D Lattices of Coplanar Waveguide Resonators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will introduce how coplanar waveguide (CPW) lattices can be used to create engineered photon-mediated interactions. |
Maya Amouzegar ; Kellen O’Brien ; Martin Ritter ; Won Chan Lee ; Alicia Kollar; |
| 91 | Compressing Quantum Time Evolution Circuits of Impurity Models Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The method is based on local circuit operations of fusion, commutation and turnover, that are satisfied by the free fermion terms. By using these operations, we show that the time evolution circuits can be compressed down to O(d*t) depth where d is the number of impurities, and t is the number of time steps. |
Efekan Kökcü ; Daan Camps ; Roel Van Beeumen ; Wibe de Jong ; Alexander Kemper; |
| 92 | Hadron Dynamics in One Dimensional Quantum Electrodynamics Using Digital Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This work uses charge screening and the Lieb-Robinson bound to develop efficient and scalable techniques for time evolution. |
Roland Farrell ; Anthony Ciavarella ; Marc Illa ; Martin Savage; |
| 93 | Quantum Simulation of Conical Intersections Using Trapped Ions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation, I discuss results and methods from recent work [3] where we used a trapped atomic ion system to perform a quantum simulation of a conical intersection. |
Jacob Whitlow ; Zhubing Jia ; Ye Wang ; Chao Fang ; Jungsang Kim ; Kenneth Brown; |
| 94 | High-fidelity Analog Quantum Simulation with Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Specifically, we present a new analog calibration framework achieving significant reduction in eigenfrequency error compared to past works. |
Trond Andersen ; Xiao Mi ; Amir Karamlou ; Nikita Astrakhantsev ; Andrey Klots ; Julia Berndtsson ; Andre Petukhov ; Dmitry Abanin ; Lev Ioffe ; Yu Chen ; Vadim Smelyanskiy ; Pedram Roushan; |
| 95 | Experimental Realization of Topological Floquet Models in Circuit QED Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present preliminary characterization of the cavity state boosting protocol. |
Martin Ritter ; David Long ; Ben Cochran ; Ibukunoluwa Adisa ; Maya Amouzegar ; Anushya Chandran ; Alicia Kollar; |
| 96 | Practical Quantum Simulations from Error Mitigation and Qubit Subspace Techniques Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The goal of this work is to outline a path to practical quantum simulations on the noisy intermediate scale quantum hardware available to us today. |
Tim Weaving ; Alexis Ralli ; Peter Coveney ; Peter Love ; William Kirby ; Andrew Tranter ; Sauro Succi ; Vinul Wimalaweera; |
| 97 | Observation of Critical Entanglement and Quantum Phase Transitions on A Quantum Computer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In particular, we demonstrate a quantum phase transition with spontaneous symmetry breaking in the thermodynamic limit and we measure bipartite entanglement entropies, which scale according to an area law for gapped systems and according to a log-area law at the critical point. |
Qiang Miao ; Thomas Barthel ; Kenneth Brown ; Marko Cetina; |
| 98 | Quantum Computed Green’s Functions Using A Cumulant Expansion of The Lanczos Method Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we present a quantum computational method to calculate the many-body Green’s function matrix in a spin orbital basis. |
Gabriel Greene-Diniz ; Kentaro Yamamoto ; David Manrique ; Evgeny Plekhanov ; Rei Sakuma ; Nathan Fitzpatrick; |
| 99 | Simulating Parity Magnetic Effects with Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By using non-adiabatic response methods we obtain the fractional second Chern number. |
Yang Yu; |
| 100 | Scattering in 1+1D Scalar Field Theory on A Quantum Computer Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: The scattering of wavepackets in one-dimensional interacting scalar field theory is simulated on a quantum computer. To initialize the "asymptotic states" for the … |
Nikita Zemlevskiy ; Henry Froland ; Martin Savage; |
| 101 | Digital Quantum Simulation of Thermal Observables Using A Global Quench Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We implement our protocol on the IBM quantum computer for a four-qubit system. |
Nikolay Gnezdilov ; Hugo Perrin ; Thibault Scoquart ; Andrei Pavlov; |
| 102 | Quantum Dynamics of A Two-level Fractional Hall System on NISQ Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will present quantum algorithms to simulate short-time quantum dynamics of a two-level fractional Hall system under a laser-driven electromagnetic pulse. |
Ammar Kirmani ; Benedikt Fauseweh ; Jianxin Zhu; |
| 103 | Nonlocal Quantum Games Using Deformed Topologically Ordered States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce a nonlocal quantum game for which toric code ground states are a resource. |
Oliver Hart ; David Stephen ; Dominic Williamson ; Michael Foss-Feig ; Rahul Nandkishore; |
| 104 | Quantum Simulation of Scalar Field Theories in Qudit Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We discuss the implementation of quantum algorithms for lattice Φ4 theory on circuit quantum electrodynamics (cQED) system. |
Doga Kurkcuoglu ; Sohaib Alam ; Joshua Job ; Andy C. Y. Li ; Alexandru Macridin ; Gabriel Perdue ; Stephen Providence; |
| 105 | Probing Correlated Phase of Quantum Matter in Driven-dissipative Superconducting Circuit Lattice Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a new method for measuring current and current statistics in a strongly interacting lattice to characterize correlated lattice phases in open quantum systems. |
Botao Du ; Qihao Guo ; Ramya Suresh ; Santiago Lopez ; Ruichao Ma; |
| 106 | A Gate-tunable Superconducting Su-Schrieffer-Heeger Chain Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present the implementation of a five-unit-cell bosonic SSH chain on a one-dimensional lattice of superconducting resonators. |
Lukas Johannes Splitthoff ; Miguel Carrera Belo ; Guliuxin Jin ; Eliska Greplova ; Christian Kraglund Andersen; |
| 107 | Superconducting Qubits As Quantum Sensors for The Detection of Ionizing Radiation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present measurements directed toward utilizing a superconducting qubit, not for quantum information processing, but as a quantum sensor for the detection of ionizing radiation. |
Matthew Freeman ; Sueli Skinner Ramos ; Rupert Lewis ; Stephen Carr; |
| 108 | Oral: Advances in Quantum Sensing: Nonlinear Superconducting Resonators for Exploring Novel Quantum Materials Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation, we explore the innovative use of a nonlinear superconducting ring resonator as a versatile platform, which offers high quality factors at low temperatures and is compatible with hybrid and 2D materials to probe quantum processes at the nanoscale. |
Nicolas Dirnegger ; Jonathan Curtis ; Ioannis Petrides ; Marie Wesson ; Saulius Vaitiekenas ; Amir Yacoby ; Prineha Narang; |
| 109 | Shaping Dual Shapiro Steps in Josephson Junctions Using Tailored Drives Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: When comparing the differential resistance R diff of the enhanced dual Shapiro step with a step generated by a sinusoidal drive, we observe an increase of R diff by a factor of ≈ 2. |
Fabian Kaap ; Christoph Kissling ; Victor Gaydamachenko ; Lukas Grünhaupt ; Sergey Lotkhov; |
| 110 | Observation of Microwave Frequency Combs in Non-Linear Superconducting Resonators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we used coplanar waveguide transmission line resonators fabricated from thin film NbTiN with fundamental modes at either 2 GHz or 3.5 GHz. |
Rupert Lewis; |
| 111 | Detection of Athermal Quasiparticles Using A Josephson Array Microwave Kinetic Inductance Detector (JAMKID) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By virtue of their construction, spatial extent, and method of readout, JAMKID circuits have potential applications as co-located sensors with superconducting quantum circuit devices. In this talk we discuss the feasibility of JAMKIDs for reliable detection of ionizing radiation impacts and how these devices might inform error mitigation in superconducting quantum processors. |
Doug Pinckney ; Patrick Harrington ; Max Hays ; Jiatong Yang ; Michael Gingras ; Bethany Niedzielski ; Hannah Stickler ; Jonilyn Yoder ; Mollie Schwartz ; Jeffrey Grover ; Kyle Serniak ; Joseph Formaggio ; William Oliver; |
| 112 | Electrostatic Actuation and Sensing of Mechanical Oscillators in The Quantum Regime Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Experiments involving superconducting qubits and mechanical oscillators require interfaces capable of faithfully exchanging quantum states between the electrical and mechanical domains. In this talk, we describe our work in realizing such interfaces by modulating the electrostatic force via mechanical motion. |
Mohammad Mirhosseini; |
| 113 | Measurement Induced Phase Transitions in Quantum Raise and Peel Models Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a quantum circuit model which emulates the interface growth of the classical raise-and- peel model. |
Eliot Heinrich ; Xiao Chen; |
| 114 | Millimeter-wave Josephson Radiator Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe the development of arrays of mm-wave radiators based on the ac Josephson effect. |
Gabriel Spahn ; Salizhan Kylychbekov ; Shravan Patel ; David Harrison ; Robert McDermott; |
| 115 | Dark-cat Encoding in Atomic Levels – Part I Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In our work, we show how decoherence-free qubits can be efficiently encoded in the large spin hyperfine ground state of lanthanide atoms. |
Ming Yuan ; Andreas Kruckenhauser ; Han Zheng ; Pei Zeng ; Xuanhui Mao ; Rick Van Bijnen ; Qian Xu ; Mikhail Mamaev ; Peter Zoller ; Liang Jiang; |
| 116 | Dark-cat Encoding in Atomic Levels – Part II Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In our work, we show how decoherence-free qubits can be efficiently encoded in the large spin hyperfine ground state of lanthanide atoms. |
Xuanhui Mao ; Andreas Kruckenhauser ; Ming Yuan ; Han Zheng ; Pei Zeng ; Rick Van Bijnen ; Qian Xu ; Mikhail Mamaev ; Peter Zoller ; Liang Jiang; |
| 117 | A Flexible Toolbox for Hamiltonian Engineering with Driven Rydberg Atom Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this project, we introduce a technique for Hamiltonian engineering based on perturbing around time-reversed trajectories. |
Nishad Maskara ; Johannes Feldmeier ; Nazli Koyluoglu ; Marcin Kalinowski ; Mikhail Lukin; |
| 118 | Designing Time-optimal Dynamically Corrected Gates Robust to Finite Blockade and Laser Errors Using Geometric Space Curves Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present a general technique to design control pulses that suppress noise due to the finite blockade strength. |
Hunter Nelson ; Edwin Barnes ; Sophia Economou; |
| 119 | Demonstration of Superadditive Communication and Nonlocality Without Entanglement with The Green Machine Temporal Mode Sorter Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a practical design of the Green Machine [2], a joint-detection receiver that can attain superadditive capacity with a binary-phase-shift-keying (BPSK) modulated Hadamard code [3, 4]. |
Chaohan Cui ; Jack Postlewaite ; Babak Saif ; Linran Fan ; Saikat Guha; |
| 120 | Benchmarking Cluster States Built with QuEra Neutral Atoms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We construct a protocol to efficiently generate cluster states in parallel with always-on interactions available with the QuEra device. |
Zhangjie Qin ; Vito Scarola; |
| 121 | Counterdiabatic Driving for Efficient Quantum Solutions to The Maximum Independent Set Problem Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This study explores the use of counterdiabatic driving in quantum annealing, focusing on its role in solving the maximum independent set (MIS) problem. |
Wen Ting Hsieh ; Dries Sels; |
| 122 | A Study of Adiabaticity in Electron Transport By Surface Acoustic Wave Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: It is widely believed that the process where SAW picks up the electron from a fixed quantum dot is adiabatic, with the electron wavefunction following the instantaneous ground state centered at the collective potential minimum. In this work we explore the adiabaticity of this electron transfer from a static to a moving (or vice versa) dot as we vary system parameters such as relative dot sizes, bias potential, and speed of the moving dot. |
Zongye Wang ; Xuedong Hu; |
| 123 | Modern Quantum Information and The Impact of Quantum Computing on Cryptography Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: With this unparalleled computational power, quantum computers have the capacity to break the widely-used cryptographic algorithms of the modern day, fundamentally altering the landscape of data security. This paper provides a deep exploration of the principles behind quantum computing and its implications for classical encryption methods, as well as the development of new strategies to secure digital communications and data. |
Daniel Shin; |
| 124 | Entangled State Generation and Coherence in STM-ESR Geometries Using Quantum Master Equations Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we demonstrate the use of a newly developed NEGF-derived quantum master equation software (TimeESR) to model ESR-STM for realistic experimental conditions relevant to atomic-scale qubit systems. |
Eric Switzer ; Jose Reina-Gálvez ; Christoph Wolf ; Geza Giedke ; Nicolás Lorente ; Talat Rahman; |
| 125 | Individual-atom Control in Array Through Phase Modulation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Current methods based on using AC stark shift to differentiate individual qubits are challenging due to large laser power requirements. We tackle such a problem by introducing a method to engineer single qubit gates through phase-modulated continuous driving. |
Guoqing Wang ; Wenchao Xu ; Changhao Li ; Vladan Vuletic ; Paola Cappellaro; |
| 126 | Unambigous Preparation of Bell Pairs Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a practical, iterative LOCC protocol which is able to transform any unknown two-qubit pure input state into a perfect |Φ +〉 Bell state in two iterations if the input state contains some initial entanglement, and is accessible in many copies. |
Orsolya Kalman ; Aurel Gabris ; Igor Jex ; Tamas Kiss; |
| 127 | Machine Learning-Driven Modeling and Characterization of High-Fidelity Quantum Control in Rydberg Atom Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Various error sources, including phase and intensity fluctuations in lasers, alignment errors, optical potential variations, finite lifetime of Rydberg atoms, and significant atomic motion during gate operations, must be considered to boost fidelity. To address this problem we have created a digital twin of the device in question, implementing a very comprehensive model of the system. |
Marco Rossignolo ; Satyanarayana Bade ; Anurag Saha Roy ; Shai Machnes ; Alastair Marshall ; William Steadman; |
| 128 | Towards Scalable GHz Spot Arrays for Atom Control Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a co-integrated electronic-photonic platform that may be tiled to produce an arbitrarily large GHz-speed visible light modulator array for individually controlling large-scale atomic systems. |
Cole Brabec ; Thomas Propson ; Ian Christen ; Gregory Choong ; Hamed Sattari ; Amir Ghadimi ; Ruonan Han ; Dirk Englund; |
| 129 | Toward High-throughput Characterization of Random Spin Baths in Semiconductors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We developed a set of tools that can be used to validate the mathematical and physical bounds on proposed sets of hyperfine couplings obtained from data-driven, machine-learned, or advanced sampling methods. |
Abigail Poteshman ; Mykyta Onizhuk ; Giulia Galli; |
| 130 | On The Variability of Fin-shaped Silicon Spin Qubit with Multi-gate: Effect of Gate Work Function Variation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, work function variation (WFV) of the gates, which is one of factors to cause variability in conventional MOSFETs, could be an inhibiting factor also to aiming at higher qubit fidelity. Therefore, in this study, we investigated the influence of WFV based on 3D device simulation (HyENEXSS TM) at 300K, subjecting to a fin-shaped single quantum dot device. |
Kimihiko Kato ; Hidehiro Asai ; Hiroshi Oka ; Shota Iizuka ; Hiroshi Fuketa ; Takumi Inaba ; Takahiro Mori; |
| 131 | Progress Towards An Integrated Flip-Chip Quantum Dot Platform for The Rapid Characterization of Semiconductor Qubit Materials Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present an integrated design that combines all the gating and readout elements necessary to characterize QD qubits and their host materials. |
Jay LeFebvre ; Matthew Jordan ; Jeffrey Kronz ; Scott Schmucker ; Tzu-Ming Lu ; Michael Lilly ; John Nogan ; Dwight Luhman ; Martin Rudolph; |
| 132 | High Volume Characterization Techniques for Industry Manufactured Si/SiGe Spin Qubit Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present the latest high-volume data on Intel’s spin qubit process and demonstrate how advances in spin qubit component yield combined with a low disorder Si/SiGe host material lead to a high success rate for spin qubit applications. |
Samuel Neyens; |
| 133 | Stable Al-based SETs for Si-based Spin Qubit Readout Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We expect to report the results from the SET devices with varying oxidation times as well as show their long-term stability in this talk. |
Runze Li ; Pradeep Namboodiri ; Zac Barcikowski ; Yanxue Hong ; Nikki Ebadollahi ; Joshua Pomeroy; |
| 134 | Local Laser-induced Solid Phase Recrystallization in Si/SiGe: Forming Ohmic Contacts with Reduced Heat Load for Spin Qubit Applications Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, the current state of the art relies on globally raising the device temperature to electrically activate the ion-implanted Ohmic contacts, which compromises the carefully engineered layer stack in the active qubit region. To address this challenge, we have devised a laser-based local annealing process for the recrystallization of ion-implanted contacts. |
Malte Neul ; Isabelle Sprave ; Laura Diebel ; Lukas Zinkl ; Dominique Bougeard ; Lars Schreiber; |
| 135 | Oral: Cryogenic Current and Amplifier Development for Spin-to-charge Readout Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Advanced silicon-based quantum computing depends on the development of both analog and digital classical circuits operating in close proximity to qubits, requiring these circuits … |
Joshua Pomeroy ; Nikki Ebadollahi ; Eva Rissanen ; Dmitri Krymski ; Yanxue Hong ; Runze Li ; Emily Bittle ; Pragya Shrestha; |
| 136 | Coupling Conduction-band Valleys in Modulated Si/SiGe Heterostructures Via Shear Strain Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we show that the main benefits of short-wavelength oscillations can be achieved in long-wavelength λ≈1.7 nm structures through a second-order coupling process involving Brillouin-zone folding, induced by shear strain. |
Benjamin Woods ; Hudaiba Soomro ; Emily Joseph ; Collin Frink ; ROBERT JOYNT ; Mark Eriksson ; Mark Friesen; |
| 137 | Characterizing Valley Splitting in Si/SiGe Quantum Devices Using A Scanning Gate Microscope Tip-Induced Quantum Dot Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Utilizing domain decomposition techniques, an electrostatic model of the SGM tip bias and the 3D overlapping gate structure can be combined with an approximate solution to the 3D Schrödinger-Poisson equation [3]. |
Efe Cakar ; Gordian Fuchs ; Ekmel Ercan ; Artem Denisov ; Christopher Anderson ; Mark Gyure ; Jason Petta; |
| 138 | Counteracting Decoherence Induced By Spin-valley Coupling in Single-qubit Manipulation Zones Via Quantum Optimal Control Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Using quantum optimal control techniques, we obtain new electron trajectories leading to significant improvements to the gate fidelity. |
Akshay Menon Pazhedath ; Alessandro David ; Lars Schreiber ; Hendrik Bluhm ; Tommaso Calarco ; Matthias Müller ; Felix Motzoi; |
| 139 | RF Diode Thermometry – Pushing The Limits of Cryogenic Temperature Sensing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we further increase the sensitivity of diode thermometry by using radiofrequency reflectometry (RF) techniques and demonstrate state-of-the-art cryogenic temperature sensing capabilities, maintaining sensitivity down to 20mK. |
Tom Swift ; Grayson Noah ; Mathieu de Kruijf ; Ross C. Leon ; Alberto Gomez-Saiz ; John Morton ; Fernando Gonzalez-Zalba; |
| 140 | A Millikelvin CMOS Demultiplexing Chip for Scalable Qubit Addressing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we present a mK cryo-CMOS demultiplexer chip that uses a single DC bias generator and a single pulse generator as inputs, to demultiplex voltages for up to 64 qubit device terminals and provide both DC bias, and simultaneous and continuous high-speed gate pulses. |
Sushil Subramanian ; Todor Mladenov ; Simon Schaal ; Bishnu Patra ; Lester Lampert ; Nancy Robinson ; Jeanette Roberts ; Stefano Pellerano; |
| 141 | Designing Quantum Gates for Superconducting Qubits with Tunable Couplers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will discuss the architecture we have developed for our processors in the Wallenberg Centre for Quantum Technology. |
Anton Frisk Kockum; |
| 142 | Large On:Off Ratio Two-qubit Coupler in Circuit QED Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we propose and fully characterize a simplified implementation of a large on:off ratio coupler. |
Othmane Benhayoune Khadraoui ; Cristóbal Lledó ; Alexandre Blais; |
| 143 | Tunable Coupler to Fully Decouple Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we propose a new coupler model that allows to fully decouple dispersively detuned Transmon qubits from each other, i.e. ZZ-crosstalk is completely suppressed while maintaining a maximal localization of the qubits’ computational basis states. |
Lukas Heunisch ; Christopher Eichler ; Michael Hartmann; |
| 144 | Crosstalk Analysis of The Double-transmon Coupler Toward Its Scalability Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we numerically evaluate the performance of a system with three qubits coupled via two DTCs. |
Kentaro Kubo ; Yinghao Ho ; Hayato Goto; |
| 145 | Engineering Pure 6 Photon-interactions with A Josephson Dipole – PART 1/2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will introduce a new device, which behaves as a pure 6-wave-mixing element. |
Gautham Umasankar ; Alessandro Miano ; Vidul Joshi ; Andy Ding ; Luigi Frunzio ; Michel Devoret; |
| 146 | Engineering Pure 6 Photon-interactions with A Josephson Dipole – PART 2/2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will introduce a new device, which behaves as a pure 6-wave-mixing element. |
Alessandro Miano ; Gautham Umasankar ; Vidul Joshi ; Andy Ding ; Luigi Frunzio ; Michel Devoret; |
| 147 | A Three Qubit System with A Common SQUID Coupler with Increased Connectivity for Fast Gates Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will review our design and simulation tools for this approach and discuss an example of a three qubit system with all-to-all connectivity. |
Zachary Parrott ; José Estrada ; Stephen Gill ; Katarina Cicak ; Kristen Genter ; Trevyn Larson ; Anthony McFadden ; Raymond Simmonds; |
| 148 | Control Strategies for Static ZZ Coupling in Flux-tunable Transmon Coupler Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present strategies to mitigate and control the ZZ coupling in devices based on fixed-frequency transmon qubits and flux-tunable transmon couplers. |
Simon Pettersson Fors ; Jorge Fernández-Pendás ; Anton Frisk Kockum; |
| 149 | Limits to Parametric Pumping in Superconducting Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, these systems suffer from a poorly understood effect imposing a lower limit on gate times: as the drive strength is increased, experiments show a sudden onset of leakage due to unwanted excitations. To understand this effect, we theoretically examine a parametrically driven system consisting of a qubit and a driven coupler. |
Matthew Capocci ; Mingkang Xia ; Chao Zhou ; Ian Mondragon-Shem ; Jens Koch ; Michael Hatridge; |
| 150 | Modular Tunable Coupler for Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we describe the theory and initial experimental results of a dual ancilla coupler that mediates the interaction between two data transmons. |
Leonardo Ranzani ; Archana Kamal ; Guilhem Ribeill ; Tristan Brown ; Raymond Simmonds; |
| 151 | Fast ZZ-Free Entangling Gates for Superconducting Qubits Assisted By A Driven Resonator Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: For transmon qubits, protocols for mitigating such errors usually involve fine-tuning the hardware parameters or introducing usually noisy flux-tunable couplers. In this work, we propose a simple scheme to cancel these stray interactions. |
Ziwen Huang ; Taeyoon Kim ; Tanay Roy ; Yao Lu ; Alexander Romanenko ; Shaojiang Zhu ; Anna Grassellino; |
| 152 | ZZ-Free Two-Qubit CZ Gate Based on Fluxonium Coupler Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we propose an adiabatic, coupler-flux-biased controlled-Z (CZ) gate that is implemented between two transmon qubits coupled via a fluxonium, an architecture we call T-F-T. |
Junyoung An ; Leon Ding ; Youngkyu Sung ; Roni Winik ; Junghyun Kim ; Max Hays ; Ilan Rosen ; David Rower ; Kate Azar ; Jeffrey Gertler ; Michael Gingras ; Thomas Hazard ; Bethany Niedzielski ; Hannah Stickler ; Mollie Schwartz ; Jonilyn Yoder ; Joel Wang ; Terry Orlando ; Simon Gustavsson ; Jeffrey Grover ; Kyle Serniak ; William Oliver; |
| 153 | Continuous FSim Gate Using Bichromatic Parametric Drives for Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose a scheme to implement a continuous fermionic simulation gate( fSim gate) for superconducting qubits. |
Zhongyi Jiang ; Mohammad Ansari; |
| 154 | Quantum Error Correction with Two Bosonic Modes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We use this method to also perform joint-Wigner tomography on the two-mode states. |
Cassady Smith ; Akshay Koottandavida ; Luigi Frunzio ; Michel Devoret ; Ioannis Tsioutsios ; Aikaterini Kargioti ; Alessandro Miano ; Vidul Joshi; |
| 155 | The Performance of Random Bosonic Rotation Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We find that random rotation codes can, on average, outperform cat codes. |
Akira Kyle ; Noah Lordi ; Saurabh Totey ; Pratik Barge ; Joshua Combes; |
| 156 | Fault-Tolerant Operation of Bosonic Qubits with Discrete-Variable Ancillae Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we introduce building blocks of error-corrected gadgets for bosonic qubits by leveraging ancilla-assisted bosonic operations through a generalized variant of path-independent quantum control (GPI). |
Qian Xu ; Pei Zeng ; Daohong Xu ; Liang Jiang; |
| 157 | Dual-rail Encoding with Superconducting Cavities Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose using the dual-rail encoding with superconducting cavities to realize an erasure qubit and describe a complete set of necessary hardware operations [1]. |
James Teoh ; Patrick Winkel ; Harshvardhan Babla ; Benjamin Chapman ; Jahan Claes ; Stijn de Graaf ; John Garmon ; William Kalfus ; Yao Lu ; Aniket Maiti ; Kaavya Sahay ; Neel Thakur ; Takahiro Tsunoda ; Sophia Xue ; Luigi Frunzio ; Steven Girvin ; Shruti Puri ; Robert Schoelkopf; |
| 158 | A Dual-rail Qubit with Parametrically Coupled Transmons Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will describe our system design and operation, and show how dual-rail encoding largely improves the coherence of the erasure qubit over the individual transmon qubits. |
Tongyu Zhao ; Xiaoyue Jin ; Katarina Cicak ; Sudhir Sahu ; John Teufel ; Raymond Simmonds; |
| 159 | Converting Leakage Errors to Erasure Errors and Cooling Atoms While Preserving Coherence in Neutral Atoms for Fault-tolerant Quantum Computation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This leads to leakage errors that are detrimental to fault-tolerant quantum computation as they are not Pauli errors and need separate error correction protocols. In this work, we develop schemes for converting these leakage errors to erasure errors, which can be efficiently corrected by standard error correction protocols. |
Sivaprasad Omanakuttan ; Vikas Buchemmavari ; Ivan Deutsch; |
| 160 | Proposal for Quantum Error Correction Scheme for Biased Errors Using Sparsely Connected Quasi-One-Dimensional Qubit Array Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The experimentally realized arrangement of semiconductor qubits is mainly one-dimensional, and hence the realization of a sparsely connected quasi-one-dimensional qubit array is experimentally feasible. In this study, we propose a quantum error correction scheme for such a qubit arrangement, utilizing the concatenated code of the repetition code and the rotated surface code, where strongly biased errors are harnessed by exploiting the one-dimensional structure using the repetition code. |
Hideki Kono ; Keisuke Fujii; |
| 161 | Long-range-enhanced Surface Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Fault-tolerant protocols for logical operations generalize naturally to these longer-range codes, based on those from ordinary surface codes. We provide near-term practical implementations of this code for hardware based on trapped ions or neutral atoms in mobile optical tweezers. |
Yifan Hong ; Matteo Marinelli ; Adam Kaufman ; Andrew Lucas; |
| 162 | Fault-tolerant Quantum Computation with Simple Non-LDPC High-rate Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The coding rates of the codes studied in this work are higher than or as high as 20%. |
Hayato Goto; |
| 163 | Weakly Fault-Tolerant Computation in A Quantum Error-Detecting Code Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Due to this, current calculations are generally done without encoding. We propose a middle ground between these two approaches: constructions in the [[n,n-2,2]] quantum error detecting code that can detect any error from a single faulty gate by measuring the stabilizer generators of the code and additional ancillas at the end of the computation. |
Todd Brun ; Christopher Gerhard; |
| 164 | Families of D=2 2D Subsystem Stabilizer Codes for Universal Adiabatic Quantum Computation with Two-body Interactions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Bravyi’s A matrix offers an approach to devising quantum error correction codes (QECC) characterized by geometric constraints. |
Zihan Xia ; Phattharaporn Singkanipa ; Daniel Lidar; |
| 165 | Paradigm Shift in The Field of Optically Active Quantum Dots: Improved Qubit and The Nuclear Interface Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This cap, inherent to self-assembled QDs, originates from substantial strain inhomogeneity affecting the mesoscopic nuclear environment of the qubit. This talk will focus on the solution to this long-standing problem offered by lattice-matched QDs, in which significantly reduced strain inhomogeneity leads to a hundred-fold extension of coherence time [2]. |
Leon Zaporski ; Noah Shofer ; Jonathan Bodey ; Santanu Manna ; George Gillard ; Martin Hayhurst Appel ; Christian Schimpf ; Saimon Covre da Silva ; John Jarman ; Geoffroy Delamare ; Gunhee Park ; Urs Haeusler ; Stijn de Wit ; Takuya Isogawa ; Evgeny Chekhovich ; Armando Rastelli ; Dorian Gangloff ; Mete Atatüre ; Claire Le Gall; |
| 166 | Controlling Nuclear Spin Memories Through Optical Driving of Electron Spins in Quantum Dots Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we study the impact of quadrupolar interactions on the generation of polarization and their interplay with hyperfine flip-flop processes when the electronic spin is driven with a periodic train of optical pulses. |
Isabela Gnasso ; Sophia Economou ; Edwin Barnes; |
| 167 | Fine Structure Splitting Cancellation in Highly Asymmetric InAs/InP Droplet Epitaxy Quantum Dots Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We find the single exciton’s fine structure splitting (FSS), which splits its degenerate ground state manifold into singlets, nearly vanishes in highly asymmetric quantum dots due to the cancellation of splitting effects with markedly different origin. |
Niels van Venrooij ; Adonai Cruz ; Raja Sekhar Reddy Gajjela ; Paul Koenraad ; Craig Pryor ; Michael Flatté; |
| 168 | Scalable and Spectrally Uniform Single Photon Sources in Spatially Regular Large Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Towards realizing on-chip quantum optical circuits, a long-standing obstacle has been the lack of spectrally uniform on-demand single photon sources (SPSs) in designed position, and having optical characteristics satisfying all functional requirements. We present results on realizing large area spectrally uniform and spatially regular epitaxial quantum dot, mesa top single quantum dots (MTSQDs), that have already been demonstrated to be on-demand SPSs with its characteristics meeting all requirements for photonic quantum information processing [1-4]. |
Qi Huang ; Lucas Jordao ; Siyuan Lu ; Anupam Madhukar; |
| 169 | Mastering Quantum Emitter Analysis: Device Characterization in The Single-Photon Limit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Traditional methods, such as full counting statistics and the Viterbi algorithm, often fall short in accurately analyzing emitter behaviors, especially in low-photon-rate regimes. To address this, we introduce a polyspectra (higher-order generalizations of the usual power spectrum) approach that is effective even in scenarios of high photon loss or low photon rates by eliminating the need for both a minimum photon flux and conventional photon-event binning [1]. |
Markus Sifft ; Annika Kurzmann ; Jens Kerski ; Rüdiger Schott ; Arne Ludwig ; Andreas Wieck ; Axel Lorke ; Paul Geller ; Daniel Hägele; |
| 170 | Oral: Programmable Formation of Telecom Band Quantum Emitters in Silicon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we demonstrate local writing and erasing of selected light-emitting defects using fs laser pulses in combination with hydrogen-based defect activation and passivation. |
Kaushalya Jhuria ; Vsevolod Ivanov ; Debanjan Polley ; Wei Liu ; Arun Persaud ; Yertay Zhiyenbayev ; Walid Redjem ; Wayesh Qarony ; Prabin Parajuli ; Qing Ji ; Anthony Gonsalves ; Jeffrey Bokor ; Liang Tan ; Boubacar Kante ; Thomas Schenkel; |
| 171 | Reconfigurable Photonic Crystal Cavity Arrays for Multiplexed Spin-photon Interfaces in Silicon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we develop a novel approach in which a bus waveguide is evanescently coupled to an array of PCCs with precise frequency tunability. |
Yu-Lung Tang ; Lukasz Komza ; Zihuai Zhang ; Xueyue (Sherry) Zhang ; Alp Sipahigil; |
| 172 | Quantum Sensing of Electric Field Distributions of Liquid Electrolytes with NV-centers in Nanodiamonds Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose to use nanodiamonds containing single NV-centers as label-free sensors [1] inside the liquid electrolyte of a battery [2]. |
Maximilian Hollendonner ; Sanchar Sharma ; Shravan Parthasarathy ; Durga Dasari ; Amit Finkler ; Silvia Viola Kusminskiy ; Roland Nagy; |
| 173 | Detection of Quantum Signals Free of Classical Noise Via Quantum Correlation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Traditional noise filtering techniques depend on distinct patterns of signal and noise in frequency or time domains, which constrains their applicability, especially in quantum sensing. Here, we introduce a signal-nature-based (not signal-pattern-based) approach that singles out a quantum signal from its classical noise background by employing the intrinsic quantum nature of the system. |
Yang Shen ; Ping Wang ; Chun Cheung ; Jörg Wrachtrup ; Renbao Liu ; Sen Yang; |
| 174 | Cavity Quantum Electrodynamic Sensors with Steady State Mode Cooling in The Strong Coupling Regime Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a model that effectively describes the optically polarized spin system with inhomogeneous broadening in the nonlinear regime relevant to sensing. |
Hanfeng Wang ; Kunal L. Tiwari ; Kurt Jacobs ; Michael Judy ; Xin Zhang ; Dirk Englund ; Matthew Trusheim; |
| 175 | Demonstration of Variational Quantum Eigensolver with Solid-State Spin System Under Ambient Conditions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This study employs the nitrogen-vacancy (NV) center system in diamond to implement the VQE algorithm and successfully finds the eigenvalue of a specific Hamiltonian. |
Xuliang DU ; Yang Shen ; Zipeng Wu ; Bei Zeng ; Sen Yang; |
| 176 | Discrete Time Crystals in A 50-nuclear-spin Quantum Simulator in Diamond Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Individually controllable 13C nuclear spins in diamond, associated with a single NV-center, can be used to realise a quantum simulator [1, 2] for the observation of many-body quantum phenomena. With such a system we can obtain a range of tunable Floquet Hamiltonians with which it is possible to observe the characteristic long-lived response of a discrete time crystal in a 1D chain of spins [3]. |
Christina Ioannou ; Benjamin Pingault ; Guido van de Stolpe ; Kai-Niklas Schymik ; Tim Hugo Taminiau; |
| 177 | Correlated Structural/Chemical and Optical Characterization of Scalable, Spatially Ordered, On-Demand Single Photon Emitter Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we present our work on establishing the scalability of InGaAs/GaAs MTSQD arrays and report on the correlated characterization of structural/chemical and optical properties of MTSQDs in small, (5×8), and large, up to (100×100), arrays through scanning transmission electron microscopy (STEM) and photoluminescence (PL) measurements. |
Lucas Jordao ; Qi Huang ; Anupam Madhukar; |
| 178 | Detecting Non-Markovian Errors in Superconducting Qubit Operations Using Partial Tomography Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: With further improvements in coherence times, the fidelity of qubit operations could enter a regime no longer limited by qubit coherence and the dominant operational errors may be non-Markovian. To anticipate this progress, we introduce a novel characterization scheme based on partial tomography that can reconstruct error channels without assuming Markovian noise. |
Martijn Zwanenburg ; Taryn Stefanski ; Figen Yilmaz ; Siddharth Singh ; Eugene Huang ; Lukas Johannes Splitthoff ; Christian Kraglund Andersen; |
| 179 | Scalable, Accurate, and Honest Approximation of Correlated-Qubit Noise Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present an efficient systematic construction of approximate noise channels, where their accuracy can be enhanced by incorporating noise components with higher qubit-qubit correlation degree. |
Fnu Setiawan ; Alexander Gramolin ; Elisha Siddiqui Matekole ; Hari Krovi ; Jacob Taylor; |
| 180 | Modeling The Effects of 1/f Noise on QCVV Experiments Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Examples include phase noise in lasers, 1/f noise in solid-state systems, and long-term drift. In this talk I discuss the impacts of these noise sources on quantum characterization, verification and validation (QCVV) experiments. |
Kevin Young; |
| 181 | Learning The Capabilities of Quantum Computers Using Physics-informed Neural Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present results on using purpose-built artificial neural networks to learn an approximation to a processor’s capability function. |
Timothy Proctor ; Daniel Hothem ; Kenneth Rudinger; |
| 182 | Unified Quantum State Tomography and Hamiltonian Learning: A Language-Translation-Like Approach for Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The amalgamation of these tools, however, is yet to be realized. Here, we introduce a novel method that facilitates this integration, drawing on the principles of machine translation from the Natural Language Processing (NLP) domain. |
Zheng An ; Jiahui Wu ; Muchun Yang ; Duanlu Zhou ; Bei Zeng; |
| 183 | Measuring Circuit Errors in Context for Surface Code Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The spatial and temporal context of an operation can significantly impact the errors seen, and as such it is important to characterize the operations within stabilizer extraction circuits in the context they will most often see. We will discuss one such way to characterize these errors within the context of the surface code stabilizer extraction circuit. |
Dripto Debroy ; Jonathan Gross ; Elie Genois ; Zhang Jiang; |
| 184 | Enabling Efficient Characterization of Measurement Noise with Measurement Randomized Compiling Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present a new noise tailoring method called measurement randomized compiling, which tailors the effective noise on measurements to a form which is simpler and easier to characterize accurately. |
Stefanie Beale; |
| 185 | Modeling Logical Qubit Performance in The Presence of Physical Crosstalk Noise Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We use the Logical Qubit Simulator (LoQS) package to numerically study the effects of physical crosstalk noise on logical qubit performance for several quantum error-correcting codes; in particular, we investigate how noise strength and type of crosstalk noise (e.g. gate spillover, always-on interactions) impact the logical qubit. |
Stefan Seritan ; Kenneth Rudinger; |
| 186 | Emergent Non-Markovian Dynamics in Logical Qubit Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By examining the gate composability requirement for Markovian dynamics, we provide illustrative examples to explain the emergence of logical non-Markovianity. |
Jalan Ziyad ; Robin Blume-Kohout ; Tzvetan Metodi ; Kenneth Rudinger; |
| 187 | Improving The Fidelity of Flux-based Gates in Superconducting Processors Through Model Learning of Qubit and Control Stack Parameters Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We shed light on the physical implication of the learnt parameters, and lay out actionable insights about correcting the pulse distortions to improve fidelity of the flux-based gates. |
Shinibali Bhattacharyya ; William Steadman ; Yousof Mardoukhi ; Marc Bernot ; André Melo ; Anurag Saha Roy ; Shai Machnes ; Nir Halay ; Akiva Feintuch ; Lior Ella ; Yonatan Cohen; |
| 188 | Deep Learning Based Adaptive Characterisation of QPUs Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present the application of Deep Learning based characterisation techniques that adaptively recommends Bayesian Optimal Experiments at every step to maximise the expected information gain about the system, while taking into account the entire history of past experiments. |
Anurag Saha Roy ; Shai Machnes ; André Melo ; William Steadman; |
| 189 | Estimating Fidelity By Propagating Errors Through Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose a new method where each gate error can be approximated by the rates of a polynomial number of primitive error generators. |
Ashe Miller ; Kevin Young ; Timothy Proctor; |
| 190 | Linear-quadratic Regulation of Drift in Quantum Processor Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Rapid calibration and recalibration of a quantum processor in the presence of drift will be essential to achieve and maintain error rates below fault tolerance thresholds. Towards this goal, we are adapting the classical linear-quadratic regulator (LQR) within the context of quantum devices to support a streaming calibration approach that uses active feedback to rapidly tune device settings on-line. |
John Marceaux ; Kevin Young; |
| 191 | Nana Liu: Analog Quantum Simulation of Partial Differential Equations Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will introduce the notion of Schrodingerisation: a procedure for transforming non-Schrodinger PDEs into a Schrodinger-form. |
Nana Liu; |
| 192 | Towards Efficient Quantum Algorithms for Large-scale Machine-learning Models Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we show that fault-tolerant quantum computing could possibly provide provably efficient resolutions for generic (stochastic) gradient descent algorithms, scaling as O(T2×polylog(n)), where n is the size of the models and T is the number of iterations in the training, as long as the models are both sufficiently dissipative and sparse, with small learning rates. |
Junyu Liu ; Minzhao Liu ; Jin-Peng Liu ; Ziyu Ye ; Yunfei Wang ; Yuri Alexeev ; Jens Eisert ; Liang Jiang; |
| 193 | Quantum Topological Data Analysis: Using Fourier Analysis to Learn Topological Properties Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The topological features of datasets find application in several industrial sectors where explainable AI is crucial, including medical image analysis, transportation optimization, molecular structure analysis in chemistry, and explainable features in financial analysis. Quantum topological data analysis (QTDA) aims to harness quantum systems to find efficient ways to estimate these features. |
Stefano Scali ; Oleksandr Kyriienko ; Chukwudubem Umeano; |
| 194 | Quantum Algorithm to Solve Unsteady Nonlinear Flows and Its Execution Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: For QC to emerge as a versatile tool, it also needs to demonstrate its utility in classical engineering applications that are often highly nonlinear. Here, we present a quantum algorithm and its end-to-end execution to simulate unsteady nonlinear fluid flows by attempting to preserve any quantum speed up. |
Sachin Satish Bharadwaj ; Katepalli Sreenivasan; |
| 195 | Quantum Computation of Stopping Power for Inertial Fusion Target Design I: Physics Overview and The Limits of Classical Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: First-principles stopping calculations are classically challenging because they involve the dynamics of large electronic systems far from equilibrium, with accuracies that are particularly difficult to constrain and assess in the warm-dense conditions preceding ignition. In these two talks, we will describe a protocol for using a fault-tolerant quantum computer to calculate stopping power from a first-quantized representation of the electrons and projectile. |
Nicholas Rubin ; Dominic Berry ; Alina Kononov ; Fionn Malone ; Tanuj Khattar ; Alec White ; Joonho Lee ; Hartmut Neven ; Ryan Babbush ; Andrew Baczewski; |
| 196 | Quantum Computation of Stopping Power for Inertial Fusion Target Design II: Quantum Algorithm and Resource Estimation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: First-principles stopping calculations are classically challenging because they involve the dynamics of large electronic systems far from equilibrium, with accuracies that are particularly difficult to constrain and assess in the warm-dense conditions preceding ignition. In these two talks, we will describe a protocol for using a fault-tolerant quantum computer to calculate stopping power from a first-quantized representation of the electrons and projectile. |
Nicholas Rubin ; Dominic Berry ; Alina Kononov ; Fionn Malone ; Tanuj Khattar ; Alec White ; Joonho Lee ; Hartmut Neven ; Ryan Babbush ; Andrew Baczewski; |
| 197 | Initial Investigations at The Intersection of Automation Algorithms with Quantum Computation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will discuss our results to date which probe the intersection of quantum computing with control, particularly focusing on control-theoretic considerations such as the conditions under which a controller implemented with the aid of a quantum computer might remain stabilizing for operation of a process, even in the presence of a non-deterministic quantum algorithm or noise in the physical device [1,2]. |
Helen Durand ; Kip Nieman ; Keshav Kasturi Rangan; |
| 198 | QSlack I: Theory of A Slack-variable Approach for Variational Quantum Semi-definite Programming Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we introduce a new way of reformulating semidefinite programs as quantum optimization tasks that can be solved by variational quantum algorithms (VQAs). |
Hanna Westerheim ; Mark Wilde ; Jenny Chen ; Dhrumil Patel ; Zoe Holmes ; Soorya Rethinasamy ; Ivy Luo ; Kathy Wang ; Theshani Nuradha; |
| 199 | QSlack II: Applications of A Slack-variable Approach for Variational Quantum Semi-definite Programming Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In the prequel presentation, “QSlack I: Theory of a slack-variable approach for variational quantum semi-definite programming,” we introduced a methodology for reformulating semidefinite programs (SDPs) as quantum optimization tasks that can be solved by variational quantum algorithms (VQAs). |
Jenny Chen ; Hanna Westerheim ; Mark Wilde ; Zoe Holmes ; Dhrumil Patel ; Soorya Rethinasamy ; Theshani Nuradha ; Ivy Luo ; Kathy Wang; |
| 200 | Systems Architecture for Quantum Random Access Memory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose the first end-to-end system architecture for QRAM. |
Shifan Xu ; Connor Hann ; Ben Foxman ; Steven Girvin ; Yongshan Ding; |
| 201 | Resilience of Bucket-brigade QRAM to Spatially and Temporally Correlated Noise Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We consider a generalized, physically-motivated error model consisting of quasi-local correlated errors that affect chains of adjacent routers in the QRAM tree. |
Rohan Mehta ; Gideon Lee ; Liang Jiang; |
| 202 | Quantum Memory: A Missing Piece in Quantum Computing Units Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we provide a full design stack view of quantum memory, from the elementary building blocks: quantum memory cells, to quantum memory devices and the quantum memory function units in the architecture of quantum processing units. |
Chenxu Liu ; Meng Wang ; Samuel Stein ; Yufei Ding ; Ang Li; |
| 203 | Quantum Simulation of Parity-time Symmetric Systems with Diagonal Operators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To capture the dynamics of non-hermitian systems, we must employ innovative simulation methods. |
Maryam Abbasi ; Anthony Schlimgen ; Kade Head-Marsden; |
| 204 | Theoretical Constraints on Simulating Non-Markovian Topological Quantum Walks in Synthetic Dimensions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: When considering Hermitian system-bath models, where the bath is included in the model, new behavior can become apparent. |
Valentin Boettcher ; Félix Pellerin ; Philippe St-Jean ; William Coish; |
| 205 | Simulation of Open Quantum Systems with Giant Atoms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Unlike conventional point-like small atoms, giant atoms couple to the environment at multiple points, yielding interference effects that grant remarkable tunability in the interactions between the atoms and the environment. Utilizing this high tunability, we demonstrate efficient simulation of a variety of open quantum systems with two giant atoms coupled to a waveguide. |
Guangze Chen ; Anton Frisk Kockum; |
| 206 | Gibbs Sampling Via Cluster Expansions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a method based on sampling from a quasi-distribution consisting of tensor products of mixed states on local clusters, i.e., expanding the full Gibbs state into a sum of products of local "Gibbs-cumulant" type states easier to implement and sample from on quantum hardware. |
Norhan Eassa ; Mahmoud Moustafa ; Arnab Banerjee ; Jeffrey Cohn; |
| 207 | Nearly-optimal Simulation of Quantum Field Theory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: I will present recent results on state preparation and time evolution in quantum field theories, based on utilizing quantum simulation algorithms with nearly-optimal scaling in problem parameters. |
Michael Kreshchuk ; Christian Bauer ; Christopher Kane ; Neel Modi ; Siddharth Hariprakash ; Niladri Gomes; |
| 208 | Linear Combination of Hamiltonian Simulation for Nonunitary Dynamics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a simple method for simulating a general class of nonunitary dynamics as a linear combination of Hamiltonian simulation (LCHS) problems. |
Dong An ; Andrew Childs ; Lin Lin ; Jin-Peng Liu; |
| 209 | Toward A Unified Picture of Fermion-to-Qubit Transforms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Using graph- and group-theoretic methods, we present progress toward a unified framework for all such mappings. In particular, we describe the set of such mappings whose qubit representations of creation and annihilation operators are single Pauli strings. |
Brent Harrison ; Andrew Projansky ; Jason Necaise ; Joseph Gibson ; James Whitfield; |
| 210 | Effective Quantum Volume, Fidelity and Computational Cost of Noisy Quantum Processing Experiments Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In my presentation I will review the concept of circuit volume and how it can be used to explain the tradeoff between the experimentally achievable signal-to-noise ratio for a specific observable, and the corresponding computational cost. |
Salvatore Mandra ; Kostyantyn Kechedzhi ; Sergei Isakov ; Benjamin Villalonga ; Sergio Boixo ; Vadim Smelyanskiy; |
| 211 | Entanglement Spectrum Statistics in Matchgate Circuits with Supplemental Resources Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our work clarifies the relationship between simulatability, entanglement entropy, and the complexity of entanglement in several different simulable gate sets. |
Andrew Projansky ; Joshuah Heath ; James Whitfield; |
| 212 | Classical Limits of Quantum Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The potential to achieve quantum advantage with quantum algorithms that run on today’s noisy intermediate scale quantum (NISQ) devices remains an open question to date. Here, we propose a systematic strategy to benchmark given NISQ-algorithms for their potential of quantum advantage by comparing these algorithms to their own classical limits. |
Peter Schuhmacher; |
| 213 | What Physical Model Does A Trotterized Time Evolution on A Noisy Quantum Computer Effectively Simulate? Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We consider the extent to which a noisy quantum computer is able to simulate the time evolution of a quantum spin system in a faithful manner. |
Keith Fratus ; Kirsten Bark ; Nicolas Vogt ; Juha Leppäkangas ; Sebastian Zanker ; Michael Marthaler ; Jan-Michael Reiner; |
| 214 | Neutral-atom Quantum Computing in The Munich Quantum Valley Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we report on the digital quantum computers developed within the Munich Quantum Valley. |
Sebastian Blatt ; Robin Eberhard ; Kevin Mours ; Eran Reches ; Dimitrios Tsevas ; Zhao Zhang ; Lorenzo Festa ; Max Melchner von Dydiowa ; Andrea Alberti ; Johannes Zeiher ; Immanuel Bloch; |
| 215 | An Atom-array – Nanophotonic Chip Platform with Background-free Imaging Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Further, we will discuss our protocol for the generation of atom-photon entanglement in the telecom regime with cavities that are resonant with excited state transitions of the atoms. Towards this, we will present our experimental progress towards coupling excited states of atoms with cavities, and our novel fiber-free photon coupling scheme to devices. |
Shankar G Menon ; Noah Glachman ; Matteo Pompili ; Yu-Hao Deng ; Dahlia Ghoshal ; Yuzhou Chai ; Alan Dibos ; Hannes Bernien; |
| 216 | Progress Towards An Efficient Quantum Network with Rubidium Atoms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report on progress towards implementing an elementary quantum network between individual 87Rb atoms mediated by a photonic link. |
Preston Huft ; Akbar Safari ; Eunji Oh ; Ethan Lu ; Omar Nagib ; Gavin Chase ; Mark Saffman; |
| 217 | Multi-qubit Entanglement for Clock States of Neutral Atoms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a scheme to generate entanglement using clock-state qubits—information encoded on hyperfine levels of the atomic ground state—that are relatively stable with a long lifetime. |
Pragati Gupta ; Barry Sanders; |
| 218 | The Application Landscape for Optimal Control of Digital and Analog Rydberg Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we apply our quantum optimal control (QOC) suite to address a range of tasks in the strontium-88 Rydberg device developed within the QRydDemo project; the qubit is encoded into two fine-structure states, and the Rydberg state is used only for entangling operations. |
Alice Pagano ; Daniel Jaschke ; Sebastian Weber ; Marco Ballarin ; Ilaria Siloi ; Hans Peter Büchler ; Simone Montangero; |
| 219 | Mid-circuit Qubit Measurement and Qubit Reuse in A 171Yb Atomic Array Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we measure the nuclear spin of target atoms in an array of optical tweezer-confined 171Yb atoms to demonstrate nondestructive, state-selective, and site-selective detection [1]. |
Daniel Stack; |
| 220 | Progress Toward Benchmarking and Circuits in An 87Sr Nuclear Spin Qubit Quantum Computer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present progress on benchmarking gate performance and execution of circuits on an 87Sr nuclear spin qubit quantum computer. |
Jonathan King; |
| 221 | Continuously Operating Cavity-enhanced Neutral Atom Array of 1200 171Yb Atoms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we demonstrate the assembly and continuous operation of a system of neutral $^{171}Yb$ atoms confined in a cavity-enhanced optical lattice potential at 784~nm, a magic wavelength for the $^{1}S_0$ – $^{3}P_1$ transition. |
Albert Ryou; |
| 222 | Progress Towards Two-Qubit Gates on A $^{171}$Yb Neutral Atom Quantum Processor Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present progress toward a neutral-atom based quantum computer that uses the nuclear spin degree of freedom in the ground states of alkaline-earth-like atoms as a qubit, and Rydberg-based interactions to perform two-qubit gates. |
Mark Stone; |
| 223 | Förster Resonances and Rydberg-Blockade CPhase Gate in A Dual-Species Atom-Array Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk I will present our recent efforts at demonstrating the first dual-element 2-qubit gate. |
Vikram Ramesh ; Shraddha Anand ; Conor Bradley ; Ryan White ; Kevin Singh ; Hannes Bernien; |
| 224 | Hybrid Quantum Repeater Chain with Trapped Rb Neutral Atom and Tm-doped AFC Quantum Memory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Importantly, I will discuss a novel scheme for generating optical-telecom photon entanglement from single cavity-coupled Rb atoms detailing both cavity, trapping, and pulse design for a robust generation despite common imperfections such as imperfect cavity coupling and laser polarization. |
Fenglei Gu ; Johannes Borregaard ; Shankar Menon ; Hannes Bernien ; David Maier ; Wolfgang Tittel; |
| 225 | Non-Hermitian Rydberg Atoms for Studying Quantum Sensing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We consider utilizing trapped, ultracold neutral atoms to simulate non-Hermitian quantum physics for understanding sensitivity scaling, quantum information bounds and entanglement spreading in open many-body systems. |
Avadh Saxena ; Andrew Harter; |
| 226 | Short-visible-wavelength GHz Spot Arrays for Atom Control Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we report on conversion of light from an array of thin-film-lithium-niobate integrated photonic modulators to 420nm via sum-frequency generation with a strong pump beam. |
Thomas Propson ; Ian Christen ; Hamed Sattari ; Gregory Choong ; Adrian Menssen ; Amir Ghadimi ; Franco N C Wong ; Dirk Englund; |
| 227 | Solving Materials Science Problems with Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Those problems include the study of superconductivity and magnetism in strongly-correlated materials. |
Lukasz Cincio; |
| 228 | Opportunities and Challenges of Bosonic Oscillators for Quantum Computation and Information Processing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present recent theoretical developments on leveraging bosonic oscillators for quantum computation and information processing, highlighting their unique role for both NISQ and fault-tolerant applications. |
Yuan Liu; |
| 229 | Leveraging Dynamic Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will discuss a new proposal and implementation of a circuit to prepare an error suppressed magic state with high yield on a superconducting qubit device using dynamic circuits. |
Maika Takita; |
| 230 | Calibrating Superconducting Qubits: From NISQ to Fault Tolerance Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will discuss the challenges associated with calibrating and controlling superconducting quantum hardware as we push both qubit number and gate performance. |
Sabrina Hong; |
| 231 | Reducing The Overhead of Quantum Error Correction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Optimizing the resource and time overheads needed to implement QEC is one of the most pressing challenges that will facilitate a transition from NISQ to the fault tolerance era. In this talk, I will discuss two intriguing ideas that can significantly reduce these overheads. |
Aleksander Kubica; |
| 232 | Limitations of Noisy Quantum Devices in Computational and Entangling Power Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: For computation with general classical processing, we show that noisy quantum devices with a circuit depth of more than O(log (n)) provide no advantages in any quantum algorithms for decision problems. |
Yuxuan Yan ; Zhenyu Du ; Junjie Chen ; Xiongfeng Ma; |
| 233 | Reservoir Computing for Efficient Decoding of Error Syndromes in Surface Code Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose a decoder using a reservoir computer (RC). |
Azarakhsh Jalalvand ; Leon Bello ; Supantho Rakshit ; Benjamin Lienhard ; Egemen Kolemen ; Hakan Tureci; |
| 234 | Efficient Separate Quantification of State Preparation Errors and Measurement Errors on Quantum Computers and Their Mitigation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Rev. A 106, 012439 (2022)], we propose a simple and resource-efficient approach to quantify separately the state preparation and readout error rates. |
Hongye Yu ; Tzu-Chieh Wei; |
| 235 | Shallow Unitary Decompositions of Quantum Fredkin and Toffoli Gates for Connectivity-aware Equivalent Circuit Averaging Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will describe how we applied our automated method to decompose Fredkin and Toffoli gates under all-to-all and linear qubit connectivities, the latter with two different routings for control and target qubits. |
Pedro Cruz ; Bruno Murta; |
| 236 | Noise-Robust Error Mitigation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce a certain cost function that guides us towards mitigating the effects of the noise prior to fitting the noisy data. |
Amin Hosseinkhani ; Alessio Calzona ; Tianhan Liu ; Adrian Auer ; Inés de Vega; |
| 237 | Continuous Variable Quantum Boltzmann Machine Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we propose a CV QBM that utilizes previously developed CV quantum neural network that defines quantum circuit for Gibbs state preparation and the parameters to be trained. |
Kubra Yeter Aydeniz ; George Siopsis ; Shikha Bangar ; Leanto Sunny; |
| 238 | Genesis of Quantum Supremacy of Atomic Boson Sampling Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In conclusion, the analysis of the box BEC trap reveals genesis of quantum supremacy of atomic boson sampling over classical computing. |
Vitaly Kocharovsky; |
| 239 | Revolutionizing Computations: Quantum Circuit Analogues with Nonlinear Acoustic Waves Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we introduce a paradigm utilizing logical phi-bits, classical analogues of qubits using nonlinear acoustic waves, supported by an externally driven acoustic metastructure. |
M Arif Hasan ; Pierre Deymier ; Keith Runge ; Josh Levine; |
| 240 | Utilization of A Microwave-analogue Aharonov-Bohm Ring to Explore Loss of Detailed Balance in Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: An Aharonov-Bohm interferometer coupled with a dephasing site has been proposed as a potential device to exhibit such non-reciprocal behavior [1]. In our recent work [2], we created a microwave analogue of this device and examined its transmission properties in both the frequency and time domain. |
Isabella Giovannelli ; Lei Chen ; Nadav Shaibe ; Steven Anlage; |
| 241 | Time-resolved Thermodynamic Cycles in Three-level Quantum Heat Engines Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation, we will discuss recent results that employ quantum waiting time distributions, to study the heat transfer and entropy production in a quantum heat engine. |
Abhaya S Hegde ; Patrick Potts ; Gabriel Landi; |
| 242 | Quantum Queued Collisional Models Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a general framework of queued collisional models, that combine stroboscopic quantum dynamics with queuing theory in classical stochastic processes. |
Guilherme Fiusa; |
| 243 | Intrinsic Origin of 1/f Noise in Open Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that 1/f noise results from the asymptotic incompleteness of Fock space, which can happen when the Hamiltonian does not admit a ground state. |
Dragomir Davidovic ; Elyana Crowder ; lance lampert ; Jiahao Chen ; Shantanu Chaudhary ; Srikar Gadamsetty; |
| 244 | Quantum Monge-Kantorovich Problem and The Time Dependent Two Qubit Marginal Problem Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate the optimal transport problem between a pair of two level systems from the perspective of the time dependent marginal problem afforded by structure of the transport plans. |
Tharon Holdsworth ; Akira Sone; |
| 245 | Energy Statistics in Quantum Scattering Theory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that the energy statistics of a quantum system can be probed by a collision with a moving particle. |
Samuel Jacob ; Felipe Barra ; Massimiliano Esposito ; Gabriel Landi ; John Goold; |
| 246 | Quantum Enhanced Heat Engine Based on Superabsorption Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a quantum-enhanced heat engine with entanglement. |
Shunsuke Kamimura ; Hideaki Hakoshima ; Yuichiro Matsuzaki ; Kyo Yoshida ; Yasuhiro Tokura; |
| 247 | Partitioning Quantum Work: Missing Term Revealed in The Thermodynamics of Open Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that entropy is only well-defined under a Hilbert-space partition, which assigns half the system-environment coupling to the system and half to the environment. |
Parth Kumar ; Caleb Webb ; Charles Stafford; |
| 248 | Quantum Speed Limit for The Information Processing of Quantum Thermodynamical Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate that the work reservoir plays a role as a catalyst and characterize the corresponding thermal operation. |
Shou-I Tang ; Akram Touil ; Sebastian Deffner ; Akira Sone; |
| 249 | Ultrafast Entropy Production By Magnons Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Ultrafast demagnetization processes can be observed in THz pump and probe experiments. The exact microscopic behavior of the magnons involved is described by a Landau-Lifshitz- … |
Finja Tietjen ; R. Matthias Geilhufe; |
| 250 | Characterization of Quantum Thermodynamics in Non-Markovian Open Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To this end, from a quantum thermodynamical perspective, we study the open quantum system models, where a quantum system is impacted by its ambient environment. |
Devvrat Tiwari; |
| 251 | Andreev Spin Qubits in Germanium-Based Josephson Junctions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We theoretically study Andreev bound states realized in a quasi-one-dimensional superconductor|germanium|superconductor heterostructure. |
Silas Hoffman ; Charles Tahan; |
| 252 | Charge and Spin Control of Andreev States in Semiconducting Josephson Junctions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Consequently, we find a dependence of the coherence time as a function of magnetic field, phase difference and filling. |
Charles Tahan ; Silas Hoffman ; Max Hays ; Kyle Serniak ; Thomas Hazard; |
| 253 | Gate Tunable Spin Splitting of Germanium Quantum Well Josephson Junction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we compare the effects of linear vs cubic spin-orbit coupling on the spin splitting of the Andreev bound spectrum. |
Avani Vivrekar ; Benjamin Woods ; Benjamin Harpt ; Mark Eriksson ; Mark Friesen; |
| 254 | Superconducting Spin Qubits: Coherence, Coupling and Perspective Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will discuss our results on the implementation of an Andreev spin qubit that is stabilized by the charging energy of a gate-defined quantum dot [2, 4, 5]. |
Marta Pita-Vidal; |
| 255 | Gatemon Qubit in A Narrow Ge/Si Core/shell Nanowire Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report full coherent control of the gatemon qubit, with energy relaxation times up to ~1.27 μs. |
Han Zheng ; Luk Yi Cheung ; Nikunj Sangwan ; Artem Kononov ; Roy Haller ; Joost Ridderbos ; Carlo Ciaccia ; Jann Hinnerk Ungerer ; Erik P. A. M. Bakkers ; Andreas Baumgartner ; Christian Schonenberger; |
| 256 | Optimized Backgate Design for Enhancing Coherence Times in Graphene Gatemons Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present a graphene-based differential (floating) qubit design in which two capacitor pads are symmetrically coupled to the back gate line with equal strength. |
Daniel Rodan Legrain ; Joel Wang ; Pablo Mercader-Pérez ; Réouven Assouly ; Max Hays ; Aranya Goswami ; Sameia Zaman ; Beatriz Yankelevich ; Aziza Almanakly ; Thomas Hazard ; Michael Gingras ; Bethany Niedzielski ; Hannah Stickler ; Mollie Schwartz ; Jonilyn Yoder ; Kenji Watanabe ; Takashi Taniguchi ; Terry Orlando ; Simon Gustavsson ; Jeffrey Grover ; Kyle Serniak ; Pablo Jarillo-Herrero ; William Oliver; |
| 257 | Quantum Dynamics of Superconductor-quantum Dot-superconductor (super-semi) Josephson Junctions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We consider capacitively shunted gatemon qubit based on superconductor-semiconductor quantum dot-superconductor (SC-QD-SC=super-semi) Josephson junction, where the superconducting phase variables may experience large quantum fluctuations. |
Utkan Güngördü ; Andrew Kerman ; Kyle Serniak ; Silas Hoffman ; Rusko Ruskov ; Charles Tahan; |
| 258 | Thermal Tuning of The Niobium-Germanium Interfaces for Hybrid Superconductor-Semiconductor Quantum Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we study the influence of thermal processing on the interface conditions of Nb-Ge heterostructures. |
Bernardo Langa ; Richard Haight ; Leonard Feldman ; Hussein Hijazi ; Xiangju Zhu ; Lifang Hu ; Moon Kim ; Kasra Sardashti; |
| 259 | Understanding Loss Mechanisms in InAs-based Gatemon Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a strategy to quantify various mechanisms that manifest in resonator quality factors. |
Lukas Baker ; William Strickland ; Krishna Dindal ; Jaewoo Lee ; Javad Shabani ; Bassel Heiba Elfekey ; Jacob Issokson ; Jacob Issokson ; Ido Levy; |
| 260 | Quantum Transport and Entanglement in Cooper Pair Splitters Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Establishing parallels between the NEGF method and the master equation approaches, we build a correlation matrix to calculate the steady-state entanglement entropy in the transport. |
Bhaskaran Muralidharan ; Arnav Arora ; Siddhant Midha ; Pertti Hakonen ; Alexander Zyuzin; |
| 261 | Gate-Tunable Circuit QED Experiment in A Three-Dimensional Cavity Architecture Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we present a three-dimensional copper cavity architecture design, compatible with a DC gate line and magnetic field, for probing hybrid devices. |
Jierong Huo ; Zezhou Xia ; Zonglin Li ; Shan Zhang ; Jianghua Ying ; Hao Zhang; |
| 262 | Geometric Gates Via Parametric Control of A SQUID Coupler Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a similar geometric CZ gate between two fluxonia implemented via parametric flux control of a tunable SQUID coupler. |
Daniel Briseno-Colunga ; Noah Stevenson ; Zahra Pedramrazi ; Noah Goss ; Abhishek Chakraborty ; Bibek Bhandari ; Chuan-Hong Liu ; Andrew Jordan ; Justin Dressel ; David Santiago ; Irfan Siddiqi; |
| 263 | High-Fidelity Two-Qubit Gates Between Fluxonium Qubits Using A Tunable Coupler Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we theoretically explore designs for fast, high-fidelity two-qubit gates between superconducting fluxonium qubits using a floating SQUID as a tunable coupler. |
Abhishek Chakraborty ; Bibek Bhandari ; Noah Stevenson ; Zahra Pedramrazi ; Noah Goss ; Chuanhong Liu ; Andrew Jordan ; Justin Dressel ; David Santiago ; Irfan Siddiqi ; Daniel Briseno-Colunga; |
| 264 | Design of Fluxonium Coupling and Readout Via SQUID Couplers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Scaling to multi-qubit fluxonium systems requires implementation of fast, high-fidelity, and highly expressive quantum gates, with small residual coupling when the gate is off. In this work, we present the design of a 2D tunable coupler composed of a floating SQUID element achieving these requirements. |
Noah Stevenson ; Zahra Pedramrazi ; Noah Goss ; Abhishek Chakraborty ; Bibek Bhandari ; Daniel Briseno-Colunga ; Chuan-Hong Liu ; Andrew Jordan ; Justin Dressel ; David Santiago ; Irfan Siddiqi; |
| 265 | Designing Two-Fluxonium Qubits with A Tunable Coupler Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present a design for a two-fluxonium device with the qubit-qubit coupling enabled by a transmon coupler. |
Figen Yilmaz ; Siddharth Singh ; Siyu Wang ; Eugene Huang ; Martijn Zwanenburg ; Taryn Stefanski ; Christian Andersen; |
| 266 | Two Fluxonium CZ Gate Using A Transmon Coupler Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we study two fluxoniums capacitively coupled by a flux-tunable transmon. |
Siddharth singh ; Figen Yilmaz ; Siyu Wang ; Eugene Huang ; Martijn Zwanenburg ; Taryn Stefanski ; Christian Andersen; |
| 267 | Tunable Inductive Coupler with >99.9% Two-qubit Gate Fidelity Between Fluxonia Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a tunable coupler that realizes strong inductive coupling between two heavy-fluxonium qubits, each with ∼ 50MHz frequencies and ∼ 5 GHz anharmonicities. |
Helin Zhang ; Chunyang Ding ; Daniel Weiss ; Ziwen Huang ; Yuwei Ma ; Charles Guinn ; Sara Sussman ; Sai Pavan Chitta ; Danyang Chen ; Andrew Houck ; Jens Koch ; David Schuster; |
| 268 | Inductive Coupling Scheme for Quantum Simulation with Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present our experimental realization and characterization of a tunable inductive coupler between transmon qubits. |
Matthew Molinelli ; Jeronimo Martinez ; Basil Smitham ; Andrew Houck; |
| 269 | Reinforcement Learning for Optimization of Fluxonium Two-qubit Gates Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To optimize this gate, we implemented model-free reinforcement learning of the pulse parameters to boost the mean gate fidelity up to 99.922±0.009%, averaged over roughly an hour between scheduled training runs. In this talk, we will discuss the details of this calibration procedure and opportunities for improvements. |
Max Hays ; Leon Ding ; Youngkyu Sung ; Bharath Kannan ; Junyoung An ; Agustin Di Paolo ; Amir Karamlou ; Thomas Hazard ; Kate Azar ; David Kim ; Bethany Niedzielski ; Alexander Melville ; Mollie Schwartz ; Jonilyn Yoder ; Terry Orlando ; Simon Gustavsson ; Jeffrey Grover ; Kyle Serniak ; William Oliver; |
| 270 | Towards High-fidelity Two-qubit Gates: Static ZZ Suppression Via Multipath Coupling in Inductively Coupled Fluxonium Qubits – Part I Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This scheme, designed for high-fidelity gate operations, can benefit advancing fluxonium-based quantum processors and broadening the horizons of universal quantum computing. In this part, we present an exhaustive circuit analysis for these multipath-coupled fluxonium qubits. |
Hyunheung Cho ; Wei-Ju Lin ; Raymond Mencia ; Vladimir Manucharyan; |
| 271 | Towards High-fidelity Two-qubit Gates: Static ZZ Suppression Via Multipath Coupling in Inductively Coupled Fluxonium Qubits – Part II Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This scheme, designed for high-fidelity gate operations, can benefit advancing fluxonium-based quantum processors and broadening the horizons of universal quantum computing. This part, we present analysis of gate operations for these multipath coupled fluxonium qubits. |
Wei-Ju Lin ; Hyunheung Cho ; Raymond Mencia ; Vladimir Manucharyan; |
| 272 | Fast Two-qubit Gates Between Inductively-capacitively Coupled Fluxoniums Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present an alternative approach when the ZZ interaction is reduced to a kHz range thanks to direct capacitive and inductive interactions between a pair of fluxoniums. |
Yinqi Chen ; Maxim Vavilov ; Vladimir Manucharyan ; Wei-Ju Lin; |
| 273 | Title: Frequency Tunable Single Photon Emitter Using Double Transmon Coupler Architecture Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present a compact and straightforward single photon emitter at microwave frequencies based on the recently developed double transmon coupler (DTC) superconducting circuit architecture. |
Stephen McCoy ; Daniel Campbell ; Michael Senatore ; Melinda Andrews ; Alexander Madden ; Sam Schwab ; Nicholas Barton ; Andrew Brownell ; Joseph Falvo ; Derrick Sica ; Erin Sheridan ; Matthew LaHaye; |
| 274 | Implementation of A Quantum Switch with Superconducting Circuits: Part 1 – Theory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This is the first part of a two-part talk. In this part we will focus on a new protocol that relies on a strong ZZ coupling between a control qubit and the input and output qubits. |
Sebastien Leger ; Connie Miao ; Gideon Lee ; Aditya Bhardwaj ; Liang Jiang ; David Schuster ; Aaron Trowbridge; |
| 275 | Implementation of A Quantum Switch with Superconducting Circuits: Part 2 – Experiment Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present experimental updates on a QSwitch implemented using four fixed-frequency transmons. |
Connie Miao ; Sebastien Leger ; Aditya Bhardwaj ; Aaron Trowbridge ; Gideon Lee ; Liang Jiang ; David Schuster; |
| 276 | Generating Extensible High-Dimensional Entanglement Via Two-Photon Qudit-Qudit Interactions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In our work, we explore extensible methods based on coherent two-photon XX-YY interactions in transmon qudits. |
Noah Goss ; Long Nguyen ; Karthik Siva ; Yosep Kim ; Ravi Naik ; David Santiago ; Irfan Siddiqi; |
| 277 | Towards Fault-tolerant Stabilization of A GKP Qubit Using A Kerr-cat Ancilla Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we discuss our experimental progress toward stabilizing the GKP code using a Kerr-cat ancilla. |
Andy Ding ; Benjamin Brock ; Alec Eickbusch ; Nicholas Frattini ; Rodrigo Cortinas ; Volodymyr Sivak ; Vidul Joshi ; Stijn de Graaf ; Benjamin Chapman ; Suhas Ganjam ; Shraddha Singh ; Luigi Frunzio ; Shruti Puri ; Steven Girvin ; Robert Schoelkopf ; Michel Devoret; |
| 278 | Embedding A Biased-noise and Error-detectable Logical Qubit in A GKP Qudit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This type of highly structured noise is a resource for logical qubits, enabling their concatenation into surface codes with improved thresholds and improved scaling with distance [2,3]. We present our experimental realization of this embedded logical qubit and demonstrate the first-order protection of its logical Z axis against ancilla bit-flip errors. |
Benjamin Brock ; Alec Eickbusch ; Volodymyr Sivak ; Shraddha Singh ; Andy Ding ; Steven Girvin ; Michel Devoret; |
| 279 | Achieving Pure Loss Channel Capacity Using GKP Codes with Near Optimal Recovery Formalism Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our work demonstrates the potential of our method in future explorations of quantum information science. |
Guo Zheng ; Wenhao He ; Gideon Lee ; Kyungjoo Noh ; Liang Jiang; |
| 280 | The Kerr-cat Qubit: The Delta Variant Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present the experimental discovery of remarkable degeneracies in the spectrum of a Kerr oscillator subjected to a squeezing drive [1]. |
Rodrigo Cortinas ; Jayameenakshi Venkatraman ; Nicholas Frattini ; Xu Xiao ; Michel Devoret; |
| 281 | Floquet and Dynamic Automorphism Codes: Part I Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce a new model of quantum computation comprised of low-weight measurement sequences that simultaneously encode logical information, enable error correction, and apply logical gates. |
Nathanan Tantivasadakarn ; shankar balasubramanian ; Margarita Davydova ; David Aasen; |
| 282 | Floquet and Dynamic Automorphism Codes: Part II Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce a new model of quantum computation comprised of low-weight measurement sequences that simultaneously encode logical information, enable error correction, and apply logical gates. |
Margarita Davydova ; Nathanan Tantivasadakarn ; shankar balasubramanian ; David Aasen; |
| 283 | Floquet Codes with A Twist Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe a method for creating twist defects in the honeycomb Floquet code of Hastings and Haah. |
Tyler Ellison ; Joseph Sullivan ; Arpit Dua; |
| 284 | Floquet Codes on Non-Trivalent Lattices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Since this initial work, several examples of Floquet codes have been constructed, mainly on trivalent lattices. Here, we report progress on understanding when such codes can be implemented on lattices of different connectivities. |
M. Sohaib Alam ; Eleanor Rieffel; |
| 285 | Maximum-likelihood Decoding for The Honeycomb Code Under Symmetric Noise Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In particular, we consider Floquet codes that can be exactly mapped to systems of free fermions through a graphical framework. |
Adrian Chapman ; Ben Macintosh; |
| 286 | Fault-tolerant Hyperbolic Floquet Quantum Error Correcting Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: A central goal in quantum error correction is to reduce the overhead of fault-tolerant quantum computing by increasing noise thresholds and reducing the number of physical qubits required to sustain a logical qubit. We introduce a potential path towards this goal based on a family of dynamically generated quantum error correcting codes that we call "hyperbolic Floquet codes." |
Ali Fahimniya ; Hossein Dehghani ; Kishor Bharti ; Sheryl Mathew ; Alicia Kollar ; Alexey Gorshkov ; Michael Gullans; |
| 287 | Fractons in Product Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose conditions applicable to the classical codes which lead the product quantum codes to have fracton order. |
Yi Tan ; Brenden Roberts ; Norman Yao; |
| 288 | Encoding Majorana Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this paper, we use the so-called logical braid gates to construct an algorithm that takes as input a extbf{general} Majorana stabilizer code, and gives an encoding circuit, in terms of quadratic and quartic Majorana braid gates. |
Maryam Mudassar ; Riley Chien ; Daniel Gottesman; |
| 289 | Building Superconducting Quantum Processors in Flip-chip Architecture Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We have further scaled this integration technology to fully-packaged multi-qubit processors and demonstrated control-signal crosstalk with favourable behaviour. In this talk, I will describe this flip-chip approach and highlight recent advances from the community. |
Sandoko Kosen; |
| 290 | Fast Event Distribution Over A HW-parametric Large-scale Control System, Part 1 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe a system architecture to enable fast and accurate active reset, syndrome extraction and error correction on a 100+ SC qubit quantum computer. |
Andrea Husseiniova ; Jan Snoeijs ; Aniket Datta ; Adam Melvin ; Dogancan Davutoglu ; Rojalin Mishra ; Dwaraka Oruganti Nagalakshmi ; Marco Ghibaudi; |
| 291 | Fast Event Distribution Over A HW-parametric Large-scale Control System, Part 2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe the core architecture of a control system which, combined with the use of FPGAs, allows to easily re-configure the system to suit a particular QPU architecture. |
Jan Snoeijs ; Adam Melvin ; Aniket Datta ; Andrea Husseiniova ; Dogancan Davutoglu ; Asher Pearl ; Rojalin Mishra ; Dwaraka Oruganti Nagalakshmi ; Marco Ghibaudi ; Philip McBrien ; Adnaan Walayat ; Samin Ishtiaq; |
| 292 | QuBE: A Qubit-controller with Broadband Electronics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We disclose the microwave performance, such as the stabilities of the phase and intensity obtained through the development of several controller systems for more than 60 qubits. |
Toshi Sumida ; Makoto Negoro ; Kazuhisa Ogawa ; Takefumi MIYOSHI ; Hidehisa Shiomi ; Shinichi Morisaka ; Ryo Matsuda ; Keisuke Koike ; Satoshi Funada ; Ryutaro Ohira ; Yoshinori Kurimoto ; Yuuya Sugita ; Yosuke Ito ; Yasunari Suzuki ; Peter Spring ; Shiyu Wang ; Shuhei Tamate ; Yutaka Tabuchi ; Yasunobu Nakamura; |
| 293 | Experimental Demonstrations of Broadband Quantum Control of Superconducting Qubits with QuBE (Qubit-controller with Broadband Electronics) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We have developed a scalable qubit controller using broadband electronics that meets the stringent requirements for superconducting quantum processors. |
Makoto Negoro ; Kazuhisa Ogawa ; Takefumi MIYOSHI ; Hidehisa Shiomi ; Shinichi Morisaka ; Ryo Matsuda ; Keisuke Koike ; Satoshi Funada ; Ryutaro Ohira ; Toshi Sumida ; Yoshinori Kurimoto ; Yuuya Sugita ; Yosuke Ito ; Yasunari Suzuki ; Peter Spring ; Shiyu Wang ; Shuhei Tamate ; Yutaka Tabuchi ; Yasunobu Nakamura; |
| 294 | Investigating Single- and Two-qubits Performances in Superconducting Quantum Processors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In the frame of the Italian High-Performance Computing and Data Center (HPC), we report on the first experiments involving state-of-the-art single- and two-qubit protocols [10], as well as the implementation of single- and two-qubit quantum circuits on few-qubits processors performed by a public academic institution in Italy [11]. |
Halima Giovanna Ahmad ; Pasquale Mastrovito ; Anna Levochkina ; Roberto Schiattarella ; Angela Chiatto ; Domenico Montemurro ; Martina Esposito ; Giovanni Piero Pepe ; Alessandro Bruno ; Autilia Vitiello ; Giovanni Acampora ; Francesco Tafuri ; Davide Massarotti; |
| 295 | Commissioning of A Commercial Superconducting 9-qubit Quantum Processor at Fermilab National Accelerator Laboratory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The commissioning of a commercial 9-qubit quantum processor with tunable couplers from Rigetti is part of the roadmap towards this goal and will be the first superconducting QPU commissioned in a USA based National Lab. In this talk we will discuss the challenges, our progress, and results on the commissioning of this 9-qubit QPU. |
David van Zanten ; Silvia Zorzetti ; Roman Pilipenko ; Nicholas Bornman ; Yulia Krasnikova ; Akanksha Mishra ; Paul Heidler ; Yuvraj Mohan ; Mehrnoosh Vahidpour ; Shane Caldwell ; Ella Lachman ; Andrew Bestwick ; Alexander Romanenko ; Anna Grassellino; |
| 296 | Scaling Qubit-resonator Architectures for Co-design Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present our results scaling the number of qubits coupled to the central resonator. |
William Kindel ; Hsiang-Sheng Ku ; Daria Gusenkova ; Nicola Wurz ; Julia Lamprich ; Jeroen Verjauw ; Rakshyakar Giri ; Michael Renger ; Stefan Pogorzalek ; Florian Vigneau ; Ping Yang ; Antti Vepsäläinen ; Alessandro Landra ; Vladimir Milchakov ; Caspar Ockeloen-Korppi ; Wei Liu ; Pedro Figueroa Romero ; Hermanni Heimonen ; Manish Thapa ; Frank Deppe ; Sourav Majumder ; Inés de Vega; |
| 297 | Qubit-resonator Gates for Co-design Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we discuss the experimental progress on the considered gates and report on different metrics which benchmark our results. |
Jeroen Verjauw ; Hsiang-Sheng Ku ; Daria Gusenkova ; Nicola Wurz ; Julia Lamprich ; Rakshyakar Giri ; Stefan Pogorzalek ; Florian Vigneau ; Ping Yang ; William Kindel ; Sourav Majumder ; Michael Renger ; Nizar Lethif ; Antti Vepsäläinen ; Alessandro Landra ; Vladimir Milchakov ; Caspar Ockeloen-Korppi ; Wei Liu ; Pedro Figueroa Romero ; Hermanni Heimonen ; Frank Deppe ; Manish Thapa ; Inés de Vega; |
| 298 | Efficient Computation of Relaxation Rates, Mode Hybridization, and Surface Losses in Nonlinear Superconducting Quantum Systems Using DEC-QED Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To accurately account for radiative losses, we introduce a transparent boundary technique that correctly captures leakage from the finite system. |
Dung Pham ; Richard Li ; Hakan Tureci; |
| 299 | Harnessing Non-Hermitian Hamiltonians: Advancements in NISQ-era Superconducting Qubit Technologies Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In our study, we evolve IBM’s NISQ superconducting qubits under a non-Hermitian Hamiltonian using a variational quantum circuit. The parameters of this circuit are optimized through a machine learning approach specifically tailored for non-unitary operations, allowing us to observe non-Hermitian phenomena with various observables, including probability and magnetization. |
Anastashia Jebraeilli; |
| 300 | Advancements in Qutrit Systems for Fluxonium-like Architectures Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Building superconducting-based qutrit processors presents significant challenges, primarily due to the pronounced decoherence of higher levels and the intricate measurement and control schemes required for qutrits. We focus on addressing these challenges by probing the Hamiltonian parameters of fluxonium-inspired superconducting systems, aiming to identify optimized qutrit configurations with enhanced coherence. |
Vinay Tripathi ; Noah Goss ; Long Nguyen ; David Santiago ; Irfan Siddiqi ; Daniel Lidar; |
| 301 | Validating Models of Quantum Computers in Practice Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Models are useful only inasmuch as their predictions are accurate, and inconsistencies with experimental data suggest that a model should be adjusted or replaced. We present simple and easy-to-use techniques for testing the validity of models using experimental data from running quantum circuits, and we demonstrate them using data from cloud-access quantum computers. |
Megan Dahlhauser ; Kevin Young ; Robin Blume-Kohout ; Timothy Proctor; |
| 302 | Scalable Benchmarking of Quantum Chemistry Algorithms Using Circuit Mirroring Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will describe a method for creating scalable application-specific benchmarks using mirrored subcircuits that quantify a device’s ability to execute particular subroutines or entire algorithms. |
Aidan Wilber-Gauthier ; Stefan Seritan ; Andrew Baczewski ; Timothy Proctor; |
| 303 | Parity Measurement Gate Set Tomography Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Parity measurements, used for detecting errors during the execution of a logical quantum circuit, are essential components of quantum error correction. We seek to fully characterize a parity measurement in order to understand its error mechanisms and how to mitigate them. |
Piper Wysocki ; Stefan Seritan ; Kenneth Rudinger; |
| 304 | Characterizing Hybrid Quantum Algorithms for Quantum Performance Benchmarks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Hybrid quantum algorithms have emerged as potential candidates to gain computational advantage on Noisy Intermediatory-Scale Quantum (NISQ) Computers. Here we discuss two such algorithms used in Quantum Chemistry and Machine Learning: Variational Quantum Eigensolver (VQE) and Quantum Convolution Neural Networks (QCNN). |
Aman Mehta ; Thomas Lubinski ; Joshua Goings ; Sonika Johri ; Nithin Reddy ; Sonny Rappaport ; Niranjan Bhatia ; Luning Zhao; |
| 305 | Benchmarking Quantum Processor Quality in The Utility Era Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: With scale increasing rapidly for utility, quality benchmarks are needed that can be run at large scales. In this talk, we report developments towards such benchmarks. |
Luke Govia ; David McKay ; Swarnadeep Majumder ; Ian Hincks ; Malcolm Carroll ; Samantha Barron ; Christopher Wood ; Emily Pritchett ; Seth Merkel; |
| 306 | Optimal Twirling Depth for Classical Shadows in The Presence of Noise Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To compute local properties of the system, it has been demonstrated that optimal sample complexity (the minimal number of required copies) is remarkably achieved when unitaries are drawn from shallow-depth circuits composed of local entangling gates, as opposed to purely local (zero-depth) or global twirling (infinite-depth) ensembles. In this presentation, I will discuss an improvement of these ideas by considering the sample complexity as a function of the circuit’s depth, in the presence of noise. |
Pierre-Gabriel Rozon ; Ning Bao ; Kartiek Agarwal; |
| 307 | Characterizing Noise in QEC Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Fast and efficient characterization also allows for verification and tailoring of error mitigation techniques, such as dynamic decoupling. I will discuss techniques for efficient characterisation of such noise, both at a holistic circuit level and at a phenomonological level, including data obtained from utilising such techniques on devices. |
Robin Harper; |
| 308 | Time-resolved Shadow Tomography of Open Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Shadow tomography is a powerful and resource-frugal characterization technique which permits the estimation of a set of expectation values of an arbitrary quantum state using a number of measurements that scales only logarithmically in the size of the observable set. Allowing the state in question to undergo general non-unitary evolution, we leverage shadow tomography to resolve the time-dependence of this observable set and thereby efficiently estimate parameters of the open system dynamics via compressed sensing. |
Joseph Barreto ; Arman Babakhani ; Onkar Apte ; Daniel Lidar; |
| 309 | Predicting Many State Properties with Robust Shallow Circuit Shadow Tomography Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This work presents the Robust Shallow Shadow (RSS) method, designed to operate effectively mitigate correlated noise, and provides a theoretical analysis of RSS behavior within the shallow-circuit region. |
Hong-Ye Hu ; Andi Gu ; Swarnadeep Majumder ; Hang Ren ; Yipei Zhang ; Derek Wang ; Zlatko Minev ; Yizhuang You ; Alireza Seif ; Susanne Yelin; |
| 310 | Efficiently Estimating Observables of Varying Locality Using Tensor-network-inspired Classical Shadows Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We consider two implementations: projecting the state of interest into a random matrix product state (MPS) or a random multiscale entanglement renormalization ansatz (MERA) state. We present numerical and analytic evidence that, when estimating observables across a range of scales, these tensor network structures can achieve shadow norms (a figure of merit directly related to measurement sample complexity) with more favorable scaling than the best known bounds on existing shadow schemes. |
Jonathan Kunjummen ; Katherine Van Kirk ; Hong-Ye Hu ; Yanting Teng ; Christian Kokail ; Jacob Taylor; |
| 311 | Neural-shadow Quantum State Tomography: Applications for Near-term Quantum Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we propose an alternative neural network-based protocol, which we call neural-shadow quantum state tomography (NSQST). |
Abhijit Chakraborty ; Victor Wei ; William Coish ; Pooya Ronagh ; Christine Muschik; |
| 312 | Predicting Arbitrary State Properties from Single Hamiltonian Quench Dynamics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we propose the Hamiltonian shadow protocol, which solely depends on quench dynamics with a single Hamiltonian, without any ancillary systems. |
Zhenhuan Liu ; Zihan Hao ; Hong-Ye Hu; |
| 313 | Stressing Out Modern Quantum Hardware: Performance Evaluation and Insights Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Quantum hardware is progressing at a rapid pace and, alongside this progression, it is vital to challenge the capabilities of these machines using functionally complex algorithms. |
Aliza Siddiqui ; Kaitlin Gili ; Chris Ballance; |
| 314 | Recent Developments in Adaptive Variational Quantum Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk I will briefly review the application of the ADAPT strategy in both variational quantum eigensolver (VQE) and quantum approximation optimization algorithm (QAOA). |
Yanzhu Chen; |
| 315 | Dramatically Reducing The Number of Measurements in ADAPT-VQE Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we present an efficient strategy for measuring the pool gradients based on a partitioning of the relevant observables into mutually commuting sets. |
Panagiotis Anastasiou ; Nicholas Mayhall ; Edwin Barnes ; Sophia Economou; |
| 316 | Leveraging Full Data Utilization for Enhanced Performance in Quantum Approximate Optimization Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This research demonstrates the algorithm’s reliability and reproducibility through the lens of the aircraft loading optimization problem of Airbus’s 2020 Quantum Comptuing Challenge executed on Rigetti’s Aspen M-3 quantum processor. |
Andrew Ochoa ; Stuart Flannigan; |
| 317 | ADAPT-QSCI: Adaptive Construction of Input State for Quantum-Selected Configuration Interaction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a quantum-classical hybrid algorithm for calculating the ground state and its energy of the quantum many-body Hamiltonian by proposing an adaptive construction of a quantum state for the quantum-selected configuration interaction (QSCI) method. |
Masahiko Kamoshita ; Yuya Nakagawa ; Sho Koh ; Wataru Mizukami ; Shotaro Sudo ; Yu-ya Ohnishi; |
| 318 | Quantum Simulation of Strongly Correlated Lattice Systems Using Adaptive Algorithms and Operator Tiling Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present an adaptive algorithm to systematically prepare strongly correlated ground states of lattice Hamiltonians on quantum processors. |
Karunya Shailesh Shirali ; John Van Dyke ; Samantha Barron ; Nicholas Mayhall ; Edwin Barnes ; Sophia Economou; |
| 319 | Towards Classical Descriptions of The Quantum Approximate Optimization Algorithm Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we aim to extend the model, incorporating deviations from homogeneity, with the goal of creating a "second-order" homogeneous proxy for QAOA, with the goal of capturing more qualities of QAOA, while retaining polynomial memory and time requirements. |
James Sud ; Tad Hogg; |
| 320 | Adaptive Variational Quantum Dynamics Simulations with The TETRIS Method Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we report an improved version of AVQDS by porting the Tiling Efficient Trial circuits with Rotations Implemented Simultaneously (TETRIS) technique [2], which adaptively adds layers of disjoint unitary gates to the ansatz to keep the McLachlan distance below a threshold. |
Feng Zhang ; Jacob Brunton ; Joshua Aftergood ; Cai-Zhuang Wang ; Thomas Iadecola ; Peter Orth ; Yong-Xin Yao; |
| 321 | Grover QAOA for 3-SAT: Quadratic Speedup, Fair Sampling, and Parameter Clustering Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate a quadratic speedup over classical brute force search by the quantum approximate optimization algorithm (QAOA) with a Grover mixer for 3-SAT problems. |
Zewen Zhang ; Roger Paredes ; Bhuvanesh Sundar ; Anastasios Kyrillidis ; Leonardo Duenas-Osorio ; Guido Pagano ; Kaden Hazzard; |
| 322 | Parameter Setting in Quantum Approximate Optimization of Weighted Problems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we develop parameter setting heuristics for QAOA applied to a general class of weighted problems. |
Shree Hari Sureshbabu ; Dylan Herman ; Ruslan Shaydulin ; Joao Basso ; Shouvanik Chakrabarti ; Yue Sun ; Marco Pistoia; |
| 323 | Towards Optimal Circuit Construction for The Quantum Approximate Optimization Algorithm Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we study how modifying the gate implementation aspect of $C$ (while calculating the expected value with the original $C$) can affect the output of QAOA. |
Anthony Wilkie ; Rebekah Herrman ; Jim Ostrowski; |
| 324 | A Distributional Approach to Quantum Approximate Optimization Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe a distributional approach to solving combinatoric optimization problems using quantum approximate optimization algorithms (QAOA). |
Tim McCormick ; Alex Emmert ; Zipporah Klain ; Ian Herbert ; Roy Streit; |
| 325 | Direct Observation of Geometric Phase Interference in Dynamics Around A Conical Intersection with A Trapped Ion Analog Quantum Simulator Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that vibronic coupling Hamiltonians representing ultrafast molecular dynamics can be efficiently simulated on an analogue quantum simulator with coupled internal and bosonic states. |
Christophe Valahu ; Vanessa Olaya-Agudelo ; Ryan MacDonell ; Tomas Navickas ; Arjun Rao ; Maverick Millican ; Juan Perez-Sanchez ; Joel Yuen-Zhou ; Michael Biercuk ; Cornelius Hempel ; Ting Rei Tan ; Ivan Kassal; |
| 326 | Resource Efficient Transfer Learning Approach for Error Mitigation of Quantum Circuits at Scale Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we develop a new, scalable error mitigation approach based on training machine learning models on real device data. |
Yuval Baum ; Gavin Hartnett ; Nuiok Dicair; |
| 327 | Machine Learning for Practical Quantum Error Mitigation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We benchmark a variety of machine learning models—linear regression, random forests, multi-layer perceptrons, and graph neural networks—on diverse classes of quantum circuits, over increasingly complex device-noise profiles, under interpolation and extrapolation, and for small and large quantum circuits. |
Haoran Liao ; Derek Wang ; Iskandar Sitdikov ; Ciro Salcedo ; Alireza Seif ; Zlatko Minev; |
| 328 | Virtual Distillation with Neural Quantum States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: On the other hand, VD faces several challenges such as the difficulties in generating quantum state replicas and in globally entangled measurement. In this work, we address these two issues and propose a novel method to mitigate errors in computational outcomes based on Neural Quantum State (NQS). |
Ryo Maekura ; Yasunari Suzuki ; Nobuyuki Yoshioka ; Yuuki Tokunaga; |
| 329 | Quantum Computing of A Frenkel Hamiltonian with Deep Learning-Based Error Mitigation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we used a single layer anthracene as a toy model and employed variational quantum deflation (VQD) to compute all the eigenvalues and associated observables. |
Yi-Ting Lee ; Vijaya Begum-Hudde ; Barbara Jones ; Andre Schleife; |
| 330 | Automating Physical Experiments Via Large Language Models: An Attempt on Superconducting Quantum Processors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we introduce our attempt to employ Large Language Models in establishing an autonomous environment for the calibration processes of superconducting qubits, based on retrival argumented generation. |
Zijian Zhang ; Shuxiang Cao ; Mohammed Alghadeer ; Simone Fasciati ; Michele Piscitelli ; Mustafa Bakr ; Peter Leek ; Alán Aspuru-Guzik; |
| 331 | What Is Optimal Way to Mitigate/suppress Quantum Errors? Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we focus on the sample complexity, or the measurement overhead, to perform unbiased quantum error mitigation, and discuss the performance bounds and their achievability. |
Nobuyuki Yoshioka; |
| 332 | Confirmation of Spatiotemporally-correlated Qubit Errors from Cosmic Rays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we demonstrate unambiguous detection of qubit relaxation from cosmic rays, enabled by concurrent monitoring of qubit errors with scintillating radiation detectors and by adopting coincidence-timing techniques from nuclear and high energy physics. We identify the correlation length and duration of spatiotemporally-correlated qubit relaxation events from cosmic rays and estimate the occurrence rate of these events. |
Patrick Harrington ; Mingyu Li ; Max Hays ; Wouter Van De Pontseele ; Daniel Mayer ; Michael Gingras ; Bethany Niedzielski ; Hannah Stickler ; Jonilyn Yoder ; Mollie Schwartz ; Jeffrey Grover ; Kyle Serniak ; Joseph Formaggio ; William Oliver; |
| 333 | Modeling and Testing Novel Quasiparticle Traps on Superconducting Qubits Via Geometric Gap Engineering Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose an improved microscopic model of quasiparticle diffusion that is not constrained to equilibrium energies. |
Ugur Alyanak ; Ziwen Huang ; Wei-Ting Lin ; Xinyuan You ; Alexander Romanenko ; Anna Grassellino ; Young-Kee Kim ; Shaojiang Zhu; |
| 334 | Modeling Particle Impacts and Quasiparticle Poisoning in Superconducting Qubit Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: These energetic events lead to correlated errors in superconducting qubit arrays. To better understand this process and potential mitigation strategies, we model these events in a Monte-Carlo based simulation package called Geant4 Condensed Matter Physics (G4CMP). |
Eric Yelton ; Clayton Larson ; Kenneth Dodge ; Vito Iaia ; Gianluigi Catelani ; Noah Kurinsky ; Paul Baity ; Robert McDermott ; B.L.T. Plourde; |
| 335 | Optimal Experimental Design for Quantum Circuits:A Case Study for The Mitigation of Quasiparticle Poisoning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Instead of an unguided research strategy, Optimal Experimental Design (OED) is a methodological approach used to maximize the information gained from a limited number of iteratively designed, computationally optimized experiments. We are developing such a methodology for the design of quantum circuits. |
Paul Baity ; Natalie Isenberg ; Kristofer Reyes ; Byung-Jun Yoon ; Gilchan Park ; Eric Yelton ; Clayton Larson ; Spencer Weeden ; Gabriel Spahn ; Robert McDermott ; Britton Plourde ; Nathan Urban ; Adolfy Hoisie; |
| 336 | Impact of Ionizing Radiation on Energy Relaxation in Superconducting Fluxonium Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We explore the effect of ionizing radiation on a superconducting fluxonium qubit, focusing on the statistics of quantum jumps. |
Nicolas Gosling ; Francesco DeDominicis ; Martin Spiecker ; Patrick Paluch ; Ambra Mariani ; Nicolas Zapata ; Ivan Colantoni ; Angelo Cruciani ; Nicolas Casali ; Stefano Pirro ; Laura Cardani ; Ioan-Mihai Pop; |
| 337 | Characterizing Frequency Fluctuations Induced Non-Markovian Noise in Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation we show that including the effects of non-Markovian noise allows us to have a model that can accurately capture the device physics. |
Abhishek Agarwal ; Lachlan Lindoy ; Yannic Rath ; Deep Lall ; Ivan Rungger; |
| 338 | A Proximitized Quantum Dot in Germanium Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The demonstration of an isotopically purifiable semiconductor platform that can host clean superconductivity places Ge/SiGe in a uniquely advantageous position, facilitating many opportunities for hybrid superconducting-semiconducting quantum dots, including high fidelity two-qubit gates [6], extended range qubit-qubit coupling without the need for resonators [7], and integration with circuit QED [8]. In this work we make initial steps toward these goals, by presenting a proximiti zed germanium quantum dot (QD) coupled to a superconducting lead (S). |
William Iain Lawrie ; Lazar Lakic ; David van Driel ; Lucas Stehouwer ; Menno Veldhorst ; Giordano Scappucci ; Ferdinand Kuemmeth ; Anasua Chatterjee; |
| 339 | Optical and Microstructural Characterization of Epitaxial Er-doped CeO2 on Silicon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we report on epitaxial Er:CeO 2 thin films grown on silicon by molecular beam epitaxy, with Er doping in the 1-100 ppm regime. |
Gregory Grant ; Jiefei Zhang ; Ignas Masiulionis ; Swarnabha Chattaraj ; Kathryn Sautter ; Sean Sullivan ; Rishi Chebrolu ; Yuzi Liu ; Jessica Martins ; Jens Niklas ; Alan Dibos ; Sumit Kewalramani ; John Freeland ; Jianguo Wen ; Oleg Poluektov ; F. Joseph Heremans ; David Awschalom ; Supratik Guha; |
| 340 | Optical and Spin Coherence of Er3+ in Epitaxial CeO2 on Silicon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we report on a new qubit system Er 3+: CeO 2 (cerium dioxide) epitaxially grown on silicon with near-zero nuclear spin environment critical for supporting long-lived spins 1 and in a silicon compatible platform 2 for device integration. |
Jiefei Zhang ; Gregory Grant ; Ignas Masiulionis ; Michael Solomon ; Jonathan Marcks ; Jasleen Bindra ; Jens Niklas ; Alan Dibos ; Oleg Poluektov ; F. Joseph Heremans ; Supratik Guha ; David Awschalom; |
| 341 | Spin Polarization and Temperature Dependent Lifetime of Vanadium Qubits in SiC Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we further characterize the optical and spin properties of V 4+ defects at different sites in 4H- and 6H-SiC at temperatures below 4K. We demonstrate all-optical spin polarization and readout, which we use to probe the spin lifetimes and its temperature dependence. |
Jonghoon Ahn ; Christina Wicker ; Nolan Bitner ; Michael Solomon ; Alan Dibos ; Jiefei Zhang ; Joseph Heremans ; David Awschalom; |
| 342 | Towards Non-Abelian Quantum Signal Processing: Error-Corrected Universal Gate Teleportation for GKP Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In particular, for this talk, we introduce an error-corrected universal single and multi-qubit logical gate teleportation scheme which corrects errors on the oscillator (GKP qubit) while teleporting the gates using a single ancilla qubit. |
Shraddha Singh ; Steven Girvin ; Baptiste Royer; |
| 343 | Continuous Variable Quantum Computation of The $O(3)$ Model in 1+1 Dimensions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We formulate the $O(3)$ non-linear sigma model in 1+1 dimensions as a limit of a three-component scalar field theory restricted to the unit sphere in the large squeezing limit. This allows us to describe the model in terms of the continuous variable (CV) approach to quantum computing. |
Shane Thompson ; Raghav Jha ; Felix Ringer ; George Siopsis; |
| 344 | Exotic Quantum State Generation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This work introduces a novel approach to generating exotic quantum states. |
Leanto Sunny ; Dylan Sheils ; George Siopsis; |
| 345 | Classical-Nonclassical Polarity of Gaussian States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Accurately quantifying these properties within multi-mode Gaussian states has posed some challenges. To address this, we introduce a unified quantification: the ‘classical-nonclassical polarity’, represented by $mathcal{P}$. |
Jiru Liu ; Wenchao Ge ; M. Suhail Zubairy; |
| 346 | Analysis of Optical GKP State Generation Using Shaped Free Electrons Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To better represent the noise on the electron state, we rigorously describe the electronic wavefunction as a continuous-variable system in time-frequency space. |
Debayan Bandyopadhyay ; Pei Zeng ; Liang Jiang; |
| 347 | Q-Flow: Generative Modeling for Open Quantum Dynamics with Normalizing Flows Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Thus, we model the Q function seamlessly with off-the-shelf deep generative models such as normalizing flows. |
Owen Dugan ; Peter Lu ; Rumen Dangovski ; Di Luo ; Marin Soljacic; |
| 348 | Piquasso: A Photonic Quantum Computer Simulation Software Platform Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce the Piquasso quantum programming framework, a full-stack open-source software platform for the simulation and programming of photonic quantum computers. |
Zoltán Kolarovszki ; Peter Rakyta ; Tamás Kozsik ; Zoltan Zimboras; |
| 349 | Linear Optical Fusion Gate Onto Qubits Boosted By High-dimensional Entanglement Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose linear optical fusion gates which project a pair of qudit systems onto a Bell state in two-dimensional subspaces. |
Tomohiro Yamazaki ; Koji Azuma; |
| 350 | A Graph-theoretical Approach to Analyze Controllability and Its Application to Qubit SystemsMonika Leibscher Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a graphical method that is suitable to handle both challenges [2,3]. |
Monika Leibscher; |
| 351 | Quantum Optimal Control from A Robotics Perspective Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We are presenting our work applying ideas from robotic control to quantum optimal control (QOC). |
Aditya Bhardwaj ; Aaron Trowbridge ; Kevin He ; David Schuster ; Zachary Manchester; |
| 352 | Decoherence-Free Subspaces for Spontaneous Emission Modeled By Continuous Spontaneous Localization Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This theory proposes that localization occurs continuously rather than due to a measurement or environmental interaction. |
Alfred Li ; Herschel Rabitz ; Benjamin Lienhard; |
| 353 | Characterization and Calibration of Quantum Processors Using Machine Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: As quantum systems increase in size, these methods become more measurement-intensive. Here, we use a technique to extract the quantum processor dynamics and map them to a known Hamiltonian and a neural network capturing the unknown dynamics. |
Benjamin Lienhard ; Herschel Rabitz; |
| 354 | Fast Quantum Logic Gates Using Nonadiabatic Landau-Zener-Stückelberg-Majorana Transitions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study an alternative paradigm for implementing quantum logic gates based on Landau-Zener-Stückelberg-Majorana (LZSM) interferometry with non-resonant driving and the alternation of adiabatic evolution and non-adiabatic transitions. |
Artem Ryzhov ; Oleh Ivakhnenko ; Sergey Shevchenko ; Miguel Fernando Gonzalez-Zalba ; Franco Nori; |
| 355 | Control Optimization Landscape Analysis of Interacting Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Identifying limits on interaction strengths can inform the feasibility of simultaneous gate calibration routines and thus significantly reduce the calibration effort. |
Weichen Xie ; Baris Ozguler ; Gabriel Perdue ; Benjamin Lienhard; |
| 356 | Algorithmic Cooling with N Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we investigate both optimal and practical algorithmic cooling of a single target qubit using N total qubits in both closed and open systems. |
Lindsay Bassman Oftelie ; Michele Campisi ; Antonella De Pasquale; |
| 357 | Scalable Donor-based Electron Spin Qubit Unit in Silicon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we propose a scalable unit of donor-based electron spin qubits that incorporates an ancilla donor. |
Shihang Zhang ; Yu He ; Peihao Huang; |
| 358 | Nanoscale Electrical Tuning of Charged Excitons in Two-Dimensional Materials with 1-nm Gate Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We observed the photoluminescence (PL) spectral behavior of neutral excitons (X o), charged trions (X -), and charged biexcitons (XX -) under various applied biases. |
Jawaher Almutlaq ; Jiangtao Wang ; Linsen Li ; Chao Li ; Tong Dang ; Vladimir Bulović ; Jing Kong ; Dirk Englund; |
| 359 | Defining Mach’s Principle in A Topological World Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This suggests Mach’s principle is applicable only to the scale-invariant topological impedances. We seek to define Mach’s principle in light of this limitation. |
Peter Cameron ; Michael Cook; |
| 360 | Spin-phonon Entanglement in SiC Optomechanical Quantum Oscillators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Remarkably, we proposed the hybrid spin-optomechanical system in a Raman-facilitated scheme which offers a coupling of spins to the vibration mode of simulated Silicon Carbide OMC cavities approaching MHz, enabling a fast and efficient spin-phonon entanglement with fidelity of 98%. |
Ruoming Peng ; Xuntao Wu ; Durga Dasari ; Jörg Wrachtrup; |
| 361 | Magnetic Relaxometry Study of Cytochrome C Using Nitrogen Vacancy Centers in Diamond Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we perform NV- T 1 relaxometry measurements on a diamond chip doped with a 8-nm thick NV-layer without the presence of Cyt-C, yielding a relaxation time of approximately 1.2 ms. Subsequently, by varying the concentration of Cyt-C from 2.6 µM to 54 µM on the diamond surface, we observe a reduction in the T 1 time to 850 µs and 150 µs, respectively. |
Abdelghani Laraoui ; Suvechhya Lamichhane ; Rupak Timalsina ; Cody Schultz ; Ilja Fescenko ; Kapildeb Ambal ; Sy-Hwang Liou ; Rebecca Lai; |
| 362 | An Optimization Framework for Deterministic Generation of Photonic Graph States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce an optimization method for deterministic generation of photonic graph states considering cost metrics such as circuit depth and gate count which is based on the local Clifford (LC) equivalency of quantum states. |
Sobhan Ghanbari ; Jie Lin ; Benjamin MacLellan ; Luc Robichaud ; Piotr Roztocki ; Hoi-Kwong Lo; |
| 363 | Scheduling Compact Error Correcting Codes in Entanglement Distribution Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we develop an approach for extending the effective coherence time of shared entanglement between nodes by utilizing compact quantum error correcting (QEC) codes, which are scheduled and run locally on resource-constrained repeaters, to maximize the fidelity of the shared state, while also accounting for the incurred gate noise from QEC circuit operations. |
Keith Kenemer ; Michelle Chalupnik ; Michelle Fernandez ; Michael Cubeddu ; Eric Brown; |
| 364 | Optimal Non-local Franson Bi-photon Quantum Interferometry Via High-finesse Cavities in Quantum Communications Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In our research, we have identified the cavity finesse F as a pivotal parameter for optimizing non-local Franson biphoton interferometry and BFC time correlations. |
Sophi Song ; Kai-Chi Chang ; Xiang Cheng ; Murat Can Sarihan ; Chee Wei Wong; |
| 365 | Highly-efficient Multimode Superconducting Integrated Quantum Memory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We experimentally demonstrate microwave quantum storage for two spectral modes of microwave radiation in on-chip system of eight coplanar superconducting resonators. |
Aleksei Matanin ; Konstantin Gerasimov ; Eugene Moiseev ; Nikita Smirnov ; Anton Ivanov ; Elizaveta Malevannaya ; Victor Polozov ; Evgeny Zikiy ; Sergey Moiseev ; Ilya Rodionov; |
| 366 | Typical Entanglement Entropy in Systems with Particle Number Conservation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We derive the entanglement entropy of random states with a fixed particle number in any system of indistinguishable particles including fermions, bosons, spin systems and mixtures thereof. |
Yale Cheng ; Rohit Patil ; Yicheng Zhang ; Marcos Rigol ; Lucas Hackl; |
| 367 | Weak Higher Form Symmetry Breaking and Decodabiilty Transitions in Mixed State Topological Orders Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation, we consider topologically ordered mixed states through the lens of spontaneous symmetry breaking (SSB) tied to higher-form symmetry. |
Zhen Bi ; Jianhao Zhang ; Zhu-Xi Luo ; Carolyn Zhang ; Meng Cheng; |
| 368 | A Study of Dissipative Models Based on Dirac Matrices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we generalize Shibata and Katsura’s study (DOI: 10.1103/PhysRevB.99.174303) of a dissipative S=1/2 1d chain to two dimensions. |
Jyotsna Gidugu ; Daniel Arovas; |
| 369 | Mixed-state Quantum Anomaly and Multipartite Separability Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we explore the surprising connection between symmetry-protected topology (SPT) and separability of their boundary mixed states. |
Leonardo Lessa ; Meng Cheng ; Chong Wang; |
| 370 | The Role of Conformal Symmetry and Instability in Determining The Temperature of A Causal Diamond Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In the literature, it has been shown that the generator of the time evolution of a diamond observer is a non-compact SO(2,1) hyperbolic transformation generator $S$ and is intimately connected to conformal quantum mechanics (CQM). In this paper, using an explicit representation of this $S$ operator as described in the de Alfaro-Fubini-Furlan model involving the inverse square potential and the inverted harmonic oscillator potential, we explore the connection between CQM and thermality in causal diamonds via a semiclassical approach. |
Pablo Lopez-Duque ; Carlos Ordonez ; Abhijit Chakraborty ; Horacio Camblong; |
| 371 | Average Pure-State Entanglement Entropy in Spin Systems with SU(2) Symmetry Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate the effect that the non-Abelian SU(2) symmetry has on the average entanglement entropy of highly excited Hamiltonian eigenstates and of random pure states. |
Rohit Patil ; Lucas Hackl ; George Fagan ; Marcos Rigol; |
| 372 | Minimally Entangled Microcanonical States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This prediction is in sharp contradiction with intuition since finite-energy-density eigenstates of such systems exhibit volume-law entanglement. To test this hypothesis, we study a chaotic quantum spin chain using a numerical algorithm to minimize von-Neumann and Rényi entanglement entropies within narrow microcanonical energy windows. |
Klee Pollock ; Anatoly Dymarsky ; Thomas Iadecola; |
| 373 | Entanglement Patterns in Many-body Quantum Systems Constrained By Spatial Locality Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I discuss how locality is imprinted in the structure of eigenstates in local Hamiltonian systems, leading to deviations from commonly-used RMT ensembles. |
Joaquin Rodriguez-Nieva; |
| 374 | Mixed-state Quantum Phases: Renormalization and Quantum Error Correction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To establish that two mixed states are in the same phase, as defined by their two-way connectivity via local quantum channels, we use the renormalization group (RG) and decoders of quantum error correcting codes. We introduce a real-space RG scheme for mixed states based on local channels which ideally preserve correlations with the complementary system, and we prove this is equivalent to the reversibility of the channel’s action. |
Shengqi Sang ; Yijian Zou ; Timothy Hsieh; |
| 375 | Exploring Quantum Chaos Through AFL Entropy: Insights from Perturbed Quantum Cat Maps Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We compare the behaviors of AFL entropy in the early time between the two regimes. |
Eric Schultz ; Laimei Nie ; Keiichiro Furuya; |
| 376 | Crystalline Average Symmetry-protected Topological Phases: Construction and Classification Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we describe the construction of crystalline ASPTs in 2 and 3 dimensions, where the crystalline symmetries are averaged. |
Sarvesh Srinivasan ; Jianhao Zhang ; Zhen Bi; |
| 377 | Dynamic Response of Dissipative Spin Chains Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We develop a linear and non-linear response formalism for free fermionic and bosonic Lindbladian systems, which we use to study magnetic excitations, quantum criticality and dynamical responses in spin chains with boundary dissipation. |
Spenser Talkington ; Martin Claassen; |
| 378 | High-threshold and Low-overhead Fault-tolerant Quantum Memory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present an end-to-end quantum error correction protocol that implements fault-tolerant memory based on a family of LDPC codes with a high encoding rate that achieves an error threshold of 0.8% for the standard circuit-based noise model. |
Ted Yoder ; Sergey Bravyi ; Andrew Cross ; Jay Gambetta ; Dmitri Maslov ; Patrick Rall; |
| 379 | Autonomous Quantum Error Correction of A Grid State Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Title: Quantum error correction with motional states of trapped ions” Abstract: I will describe experimental progress aimed at realizing error-corrected quantum computing systems in the motional degree of freedom of trapped-atomic ions. |
Jonathan Home; |
| 380 | Quantum Lego: Building Quantum Error Correcting Codes from Tensor Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Inspired by quantum code toy models in quantum gravity, we propose the quantum legos framework for crafting novel quantum error correcting codes. |
ChunJun (Charles) Cao; |
| 381 | Demonstration of A Long-coherence Dual-rail Erasure Qubit Using Tunable Transmons Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This work establishes transmon-based dual-rail qubits as an attractive building block for hardware-efficient quantum error correction. |
Harry Levine ; Arbel Haim ; Jimmy Shih-Chun Hung ; Nasser Alidoust ; Mahmoud Kalaee ; Laura DeLorenzo ; E. Alex Wollack ; Patricio Arrangoiz-Arriola ; Amirhossein Khalajhedayati ; Rohan Sanil ; Hesam Moradinejad ; Aleksander Kubica ; Aashish Clerk ; Yotam Vaknin ; David Hover ; Fernando Brandão ; Alex Retzker ; Oskar Painter; |
| 382 | Constant-Overhead Fault-Tolerant Quantum Computation with Reconfigurable Atom Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose a hardware-efficient scheme to perform fault-tolerant quantum computation with high-rate qLDPC codes on reconfigurable atom arrays, directly compatible with recently demonstrated experimental capabilities. |
Hengyun Zhou ; Qian Xu ; Pablo Bonilla Ataides ; Christopher Pattison ; Nithin Raveendran ; Dolev Bluvstein ; Jonathan Wurtz ; Bane Vasic ; Mikhail Lukin ; Liang Jiang; |
| 383 | Optimal Electron Trajectories Improving The Spin-shuttling Fidelity Beyond The Adiabatic Limit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we compute the energy splitting of the valley with the help of an alloy-disorder model [4] and we focus on the dephasing interaction between spin and valley. |
Alessandro David ; Lars Schreiber ; Hendrik Bluhm ; Tommaso Calarco ; Felix Motzoi; |
| 384 | Valley-splitting Mapping By Conveyor-mode Spin-coherent Single Electron Shuttling Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Leveraging the spatial control granted by conveyor-mode spin-coherent electron shuttling [1], we map valley splittings at various positions in the shuttling path by detecting magnetic anticrossings of ground and excited valley states. |
Mats Volmer ; Tom Struck ; Lino Visser ; Arnau Sala ; Max Oberländer ; Bingjie Chen ; Tobias Offermann ; Ran Xue ; Jhih-Sian Tu ; Stefan Trellenkamp ; Lukasz Cywinski ; Hendrik Bluhm ; Lars Schreiber; |
| 385 | Coherent Spin Qubit Shuttling Through Germanium Quantum Dots Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Semiconductor quantum dot qubits have seen significant progress in the high-fidelity operation of small qubit registers but establishing a compelling quantum link remains a challenge. Here, we show that a spin qubit can be shuttled through multiple quantum dots while preserving its quantum information. |
Corentin Déprez ; Floor van Riggelen-Doelman ; Chien-An Wang ; Sander de Snoo ; William Lawrie ; Nico Hendrickx ; Maximilian Rimbach-Russ ; Amir Sammak ; Giordano Scappucci ; Menno Veldhorst; |
| 386 | Benefits and Perspective of Conveyor-mode Single Electron Shuttling in Si/SiGe Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In a 1 µm long shuttle device, we investigate the spin coherence during conveyor-mode shuttling by separation and rejoining an EPR spin-pair. |
Lars Schreiber; |
| 387 | Bucket Brigade and Conveyor-mode Coherent Electron Spin Shuttling in Si/SiGe Quantum Dots Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we create a quantum link by shuttling a single electron spin across a linear array of six tunnel-coupled quantum dots in an isotopically enriched 28Si/SiGe heterostructure. |
Yuta Matsumoto ; Maxim Smet ; Larysa Tryputen ; Sergey Amitonov ; Sander Snoo ; Amir Sammak ; Maximilian Russ ; Anne-Marije Zwerver ; Giordano Scappucci ; Lieven M. Vandersypen; |
| 388 | Hilbert Space Fragmentation and Scar Time Crystallinity in Driven Homogeneous Central Spin Models Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study the stroboscopic non-equilibrium quantum dynamics of periodically driven central spin systems with XXZ-type interaction. |
Abhishek Kumar ; Rafail Frantzeskakis ; Sophia Economou ; Edwin Barnes; |
| 389 | Variability Mitigation in Epitaxial-heterostructure-based Spin Qubit Arrays Via Gate Layout Optimization Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We unveil the key role of gate coverage on screening the charge traps, and propose alternative designs to minimize the variability figures. |
Biel Martinez Diaz ; Silvano De Franceschi ; Yann-Michel Niquet; |
| 390 | Fast and High-fidelity Dispersive Readout of A Spin Qubit Via Squeezing and Resonator Nonlinearity Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate dispersive measurement of an individual electron spin in a semiconductor double quantum dot that is coupled to a nonlinear microwave resonator. |
Chonfai Kam ; Xuedong Hu; |
| 391 | Proposing A New Set of Optimal Entanglement Witnesses Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present strategies, including one based on training a neural network, to make the adaptive choice of the second witness set. |
Arianna Meinking; |
| 392 | Lieb-Robinson Correlation Function in Large Qubit Chains Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Direct calculations of the LR correlation function have been limited by the exponential increase in the size of the state space with the number of qubits. We introduce a new technique that avoids this barrier by transforming the calculation to a sum over Pauli walks which results in linear scaling with system size. |
Craig Lent ; Brendan Mahoney; |
| 393 | Permutation-invariant Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show how all possible circuit elements can be constructure, the structure of the group and characterize the algebra with a symmetrized construction. |
Maximilian Mansky ; Santiago Londoño Castillo ; Claudia Linnhoff-Popien ; Victor Ramos Puigvert; |
| 394 | Approximate T-design in General Architectures Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Previous works have proven that a one-dimensional brickwork architecture becomes an approximate t-design within a depth that is linear in system size. Using a cluster-linking picture, we show how to reduce more general architectures to this one-dimensional case while preserving the linear nature of the unitary t-designs. |
James Allen ; Daniel Belkin ; Soumik Ghoush ; Christopher Kang ; Sophia Lin ; James Sud ; Frederic Chong ; Bill Fefferman ; Bryan Clark; |
| 395 | Mechanically Induced Correlated Errors on Superconducting Qubits with Relaxation Times Exceeding 0.4 Milliseconds Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By introducing a novel time-resolved error detection scheme synchronized with the operation of the pulse tube cooler in a dilution refrigerator, we find that mechanical shocks from the pulse tube induce nonequilibrium dynamics in highly coherent qubits, leading to strongly correlated bit-flip errors. |
Shingo Kono; |
| 396 | Mitigation of Interfacial Dielectric Loss in Aluminum-on-silicon Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate aluminum-on-silicon planar transmon qubits with time-averaged T1 energy relaxation times of up to 270 μs, corresponding to Q = 5 million, and a highest observed value of 501 μs. |
Janka Biznarova ; Amr Osman ; Emil Rehnman ; Lert Chayanun ; Christian Križan ; Per Malmberg ; Marcus Rommel ; Christopher Warren ; Per Delsing ; August Yurgens ; Jonas Bylander ; Anita Fadavi Roudsari; |
| 397 | Characterization of Fabrication Methods to Reach High Coherence Superconducting Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Although significant improvements in coherence time have been achieved over the last years, reaching qubit lifetimes well beyond 100 µs involves careful investigation of all fabrication steps. Here, we demonstrate that such high device qualities can be achieved by a combination of substrate cleaning, etching optimization and post-process sample cleaning. |
Leon Koch ; Niklas Bruckmoser ; David Bunch ; Ivan Tsitsilin ; Kedar Honasoge ; Thomas Luschmann ; Lasse Södergren ; Christian Schneider ; Max Werninghaus ; Stefan Filipp; |
| 398 | Improving Qubit Performance Through Engineering of The Substrate-Josephson Junction Interface Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show an example of a chemical surface treatment that modifies the Josephson Junction-substrate interface, resulting in statistically significant improvement in T1 (>25% improvement) and a reduction in the density of strongly-coupled TLS. As this treatment primarily modifies the Josephson junction-substrate interface, we perform targeted chemical, and structural characterizations of that interface and correlate those with qubit measurements. |
Cameron Kopas ; Dominic Goronzy ; Thang Pham ; Carlos G Torres Castanedo ; Matthew Cheng ; Hilal Cansizoglu ; Rory Cochrane ; Burcu Ercan ; Jin-Su Oh ; Akshay Murthy ; Ella Lachman ; Alexander Romanenko ; Anna Grassellino ; Matthew J Kramer ; Lin Zhou ; Michael Bedzyk ; Josh Mutus ; Vinayak Dravid ; Mark Hersam ; Kameshwar Yadavalli; |
| 399 | Coherence Measurements of Tantalum Based Transmon Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we discuss the design and fabrication of our Ta based transmon qubits, including the etch of the Ta thin film, the addition of the Al/AlOx/Al Josephson junction, and the cleaning methods used during the processing. |
Haozhi Wang ; Zachary Steffen ; Yi-Hsiang Huang ; Yizhou Huang ; Benjamin Palmer; |
| 400 | Coherence Correlations in Planar Fluxonium Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We consider data gathered for the purpose of collecting statistics on device performance, understanding how measured coherence times correlate with device parameters and achievable gate fidelities, and identifying the dominant loss mechanisms limiting device coherence. |
Kate Azar ; Thomas Hazard ; Mallika Randeria ; Jeffrey Gertler ; Renée DePencier Piñero ; Kunal L. Tiwari ; Leon Ding ; Max Hays ; Junyoung An ; Junghyun Kim ; Ilan Rosen ; Agustin Di Paolo ; David Kim ; Hannah Stickler ; Bethany Niedzielski ; Felipe Contipelli ; Jeffrey Grover ; Jonilyn Yoder ; Mollie Schwartz ; William Oliver ; Kyle Serniak; |
| 401 | Dependence of Transmon Coherence on Geometry and Interface Treatment Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we examine the effect of qubit geometry and surface preparation on qubit energy relaxation time. |
Spencer Weeden ; K. Okubo ; JT Paustin ; Robert McDermott; |
| 402 | Characterizing The Coherence of Tantalum-based Transmons and Resonators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present our qubits’ and resonators’ coherence data along with supporting fabrication characterization analysis using Atomic Force Microscopy (AFM), Scanning Electron Microscopy (SEM), and Energy Dispersive X-ray Spectroscopy (EDX) to gain a better understanding of our samples’ surfaces. |
Israa Yusuf ; Jacob Repicky ; Param Patel ; Maria Nowicki ; Chung Wa Shum ; Michael Hatridge; |
| 403 | Materials Exploration Towards High Coherence Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Superconducting quantum circuits are one of the leading platforms for quantum information processing. Tremendous progress has been made in extending the qubit lifetime over the … |
Mustafa Bal ; Francesco Crisa ; Akshay Murthy ; Sabrina Garattoni ; Shaojiang Zhu ; ZuHawn Sung ; Jaeyel Lee ; David van Zanten ; Ivan Nekrashevich ; Alexander Romanenko ; Peter Hopkins ; David Olaya ; Florent Lecocq ; Katarina Cicak ; Michael Vissers ; Tony McFadden ; Stephen Gill ; Corey Rae McRae ; Joel Ullom ; Anna Grassellino; |
| 404 | Rhenium As A Novel Superconducting Material for Transmon Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report statistics of T1 relaxation measurements of Re qubits, and compare the results to Nb qubits as well as Re encapsulated Nb qubits. |
Francesco Crisa ; Mustafa Bal ; Shaojiang Zhu ; Jae-Yel Lee ; Akshay Murthy ; Anna Grassellino ; Alexander Romanenko ; John Zasadzinski ; Seth Rice ; Maria Iavarone ; Sabrina Garattoni; |
| 405 | Statistical Characterization of Transmon Qubit Energy Relaxation Time Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we analyze the transmon qubit T1 fluctuation as a function of the temperature. |
Shaojiang Zhu ; Xinyuan You ; Mustafa Bal ; Francesco Crisa ; Roman Pilipenko ; David Zanten ; Alexander Romanenko ; Anna Grassellino; |
| 406 | Effects of Strongly Coupled Coherent Two-level-systems on The Coherence Times of Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present a model where the strong coupling of a TLS at specific coupling angles leads to longer coherence times. |
Bhaskaran Muralidharan ; Tanveer Molla ; Manas Nagda; |
| 407 | Investigations of 1/f Magnetic Flux Noise in Superconducting Qubits with Weak Magnetic Fields Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We showed in recent experiments on aluminum C-shunt flux qubits [1] that the noise power spectrum responds anomalously to the application of weak in-plane magnetic fields. We report on the continuation of these studies, particularly focusing on advanced noise spectroscopy techniques and field-orientation dependence. |
Lamia Ateshian ; David Rower ; Max Hays ; Lauren Li ; Leon Ding ; David Kim ; Bethany Niedzielski ; Jonilyn Yoder ; Mollie Schwartz ; Terry Orlando ; Joel Wang ; Simon Gustavsson ; Jeffrey Grover ; Kyle Serniak ; Riccardo Comin ; William Oliver; |
| 408 | Qubit Cloaking and Readout Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show experimental results of transmon readout using this approach. |
Cristóbal Lledó; |
| 409 | Longitudinal Readout of The Transverse Component of A Qubit Using A SNAIL Coupler Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will present our work on implementing longitudinal QND readout of transverse qubit component using parametric processes involving a Superconducting Nonlinear Asymmetric Inductive eLement (SNAIL). |
Girish Kumbhar ; Chao Zhou ; Mingkang Xia ; Jacob Repicky ; Maria Mucci ; Roger Mong ; Michael Hatridge; |
| 410 | Investigating The Quantum Non-demolition Character of The Longitudinal Transmon Readout Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Using a realistic circuit that realizes longitudinal coupling introduced in Ref. [3], we explore how the multi-level nature of a transmon affects this readout, the impact of chaos in the system, and whether longitudinal readout leads to transmon ionization [2]. |
Alex Chapple ; Alexander McDonald ; Christian de Correc ; Manuel Munoz Arias ; Alexandre Blais; |
| 411 | Transmon Qubit Readout Using A Nonlinear Cross-Kerr Interaction: QNDness Versus Readout Photon Number Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This results in a large qubit-dependent displacement of the meters that can be read out without causing Purcell decay. The talk will present this alternative readout scheme and discuss the impact of increasing readout power on the readout fidelity and QNDness. |
Cyril Mori ; Vladimir Milchakov ; Francesca D’Esposito ; Tomas Ramos ; Wael Ardati ; Dorian Nicolas ; Shelender Kumar ; Vishnunarayanan Suresh ; Juan Jose Garcia-Ripoll ; Quentin Ficheux ; Nicolas Roch ; Olivier Buisson; |
| 412 | High-fidelity Qubit Readout with Parametric Protocols and On-chip Amplification in A Circuit-QED Setup Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: A single parametric tone can be used to achieve strong dispersive shifts within a qubit-cavity system [1] or perform gate operations [2]. Using these techniques, we propose a new protocol for high fidelity qubit readout with in-situ on-chip amplification of the readout photons. |
Sudhir Sahu ; Bryan Gard ; Benton Miller ; Tongyu Zhao ; Stephen Gill ; Taewan Noh ; Katarina Cicak ; Kurt Jacobs ; Leonardo Ranzani ; Archana Kamal ; Raymond Simmonds; |
| 413 | Parametric Architecture with Qubit-resonator Coupling Mediated By A Tunable Bus for Initialization, Leakage Reduction and Readout Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we investigate an architecture utilizing a tunable coupler mediating interactions between qubits and a rapidly decaying resonator that is used as a dump for unwanted excitations. |
Max Werninghaus ; Gerhard Huber ; Federico Roy ; João Romeiro ; Leon Koch ; Niklas Bruckmoser ; Niklas Glaser ; Ivan Tsitsilin ; Malay Singh ; Johannes Schirk ; Stefan Filipp; |
| 414 | Quarton Couplers for Ultrafast Superconducting Qubit Readout: Part I, Theory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present a new superconducting qubit readout scheme exploiting the large qubit-resonator cross-Kerr enabled by quarton couplers. |
Yufeng Ye ; Jeremy Kline ; Alec Yen ; Gregory Cunningham ; Sean Chen ; Max Tan ; Alicia Zang ; Kevin O’Brien; |
| 415 | Quarton Couplers for Ultrafast Superconducting Qubit Readout: Part II, Experiment Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present a new superconducting qubit readout scheme exploiting the large qubit-resonator cross-Kerr enabled by quarton couplers. |
Jeremy Kline ; Yufeng Ye ; Alec Yen ; Gregory Cunningham ; Sean Chen ; Max Tan ; Alicia Zang ; Michael Gingras ; Bethany Niedzielski ; Hannah Stickler ; Kyle Serniak ; Mollie Schwartz ; Kevin O’Brien; |
| 416 | Experimental Demonstration of Flux-pulse-assisted Readout on Fluxonium Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present experimental results in which we display an advantage of flux-pulse-assisted readout over static readout at the so-called "sweet-spot" on multiple fluxonium qubits. |
Taryn Stefanski ; Figen Yilmaz ; Martijn F. S. Zwanenburg ; Eugene Huang ; Siddharth Singh ; Lukas Johannes Splitthoff ; Christian Kraglund Andersen; |
| 417 | Optimizing Transmon Readout with Dynamiqs, A Library for GPU-accelerated and Differentiable Quantum Simulations (1/2) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Superconducting qubit readout stands out as a main bottleneck of circuit quantum electrodynamics, with the fidelity and length of the operation typically lagging in comparison to state-of-the-art single and two qubit gates. In this two-part talk, we introduce a constant memory numerical method to compute arbitrary gradients of a master equation, that scales favorably with system size and evolution time. |
Ronan Gautier ; Elie Genois ; Pierre Guilmin ; Adrien Bocquet ; Alexandre Blais; |
| 418 | Optimizing Transmon Readout with Dynamiqs, A Library for GPU-accelerated and Differentiable Quantum Simulations (2/2) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Superconducting qubit readout stands out as a main bottleneck of circuit quantum electrodynamics, with the fidelity and length of the operation typically lagging in comparison to state-of-the-art single and two qubit gates. In this two-part talk, we introduce a constant memory numerical method to compute arbitrary gradients of a master equation, that scales favorably with system size and evolution time. |
Pierre Guilmin ; Ronan Gautier ; Adrien Bocquet ; Elie Genois ; Alexandre Blais; |
| 419 | Optimizing Fluxonium Readout Using Quantum Optimal Control Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate novel control schemes to improve the duration and fidelity of fluxonium readout by using time-dependent charge and flux drives which take advantage of the intrinsic system structure. |
Simon Richer ; Elie Genois ; Ronan Gautier ; Alexandre Blais; |
| 420 | Pound-Drever-Hall Readout for Superconducting Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will show that PDH can also benefit other aspects of superconducting circuits. |
Ibukunoluwa Adisa ; Martin Ritter ; Alicia Kollar; |
| 421 | Interfacing Solid-state Quantum Emitters Into Real-world Photonic Platforms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I present recent races and future challenges in scalable, integrated quantum photonics. |
Je-Hyung Kim; |
| 422 | Towards Quantum Technologies with VSi Centers in C-plane Silicon Carbide Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: I will present our progress on studying the optical coherence and spectral stability of V Si centers in samples diced from a commercially available, 4-inch c-plane silicon carbide wafer. |
Guido van de Stolpe ; Laurens Feije ; Sjoerd Loenen ; Antariksha Das ; Gerben Timmer ; Daniel Bedialauneta ; Tijmen de Jong ; Benjamin Pingault ; Tim Hugo Taminiau; |
| 423 | First-principles Study of Point Defects and Doping Limits in CaO Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present results of HSE hybrid-functional calculations for intrinsic point defects in CaO. |
Zhenkun Yuan ; Geoffroy Hautier; |
| 424 | High-throughput Computationally-driven Discovery and Experimental Realization of A New Quantum Defect in WS2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Importantly, we will report on the synthesis and scanning tunneling microscopy and spectroscopy of one of our quantum defect candidates; demonstrating good agreement with the theoretical high-throughput prediction and confirming the discovery of an entirely new quantum defect with high potential for applications in WS 2. |
Yihuang Xiong ; John Thomas ; Wei Chen ; Bradford Barker ; Junze Zhou ; Weiru Chen ; Antonio Rossi ; Nolan Kelly ; Zhuohang Yu ; Da Zhou ; Shalini Kumari ; Joshua Robinson ; Mauricio Terrones ; Adam Schwartzberg ; D. Frank Ogletree ; Eli Rotenberg ; Marcus Noack ; Sinéad Griffin ; Archana Raja ; David Strubbe ; Alexander Weber-Bargioni ; Geoffroy Hautier; |
| 425 | Symmetric Carbon Tetramers Forming Chemically Stable Spin Qubits in Hexagonal Boron Nitride Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: On the other hand, vacancies’ reactive nature and instability at the surface limit further developments. Here, we present the symmetric carbon tetramers (C4) in hBN and propose them as a chemically stable spin qubit for sensing in low dimensions. |
Zsolt Benedek ; Rohit Babar ; Ádám Ganyecz ; Tibor Szilvási ; Örs Legeza ; Gergely Barcza ; Viktor Ivady; |
| 426 | Oral: Pseudo Jahn-Teller Effect at The Intrinsic Defects in Hexagonal Boron Nitride Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Using density functional theory-based calculations, we explore the effects of pseudo Jahn-Teller distortion on the structural, electronic and optical properties of intrinsic defects in hBN. |
Sai Krishna Narayanan ; Pratibha Dev ; Sharmila Shirodkar; |
| 427 | Tunneling Spectroscopy of VOPc Encapsulated in Van Der Waals Heterostructures Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we present a method for encapsulating small molecules, vanadyl phthalocyanine (VOPc), into a mechanically exfoliated heterostructure to generate a graphite/hBN /VOPc/hBN/graphite tunnel junction and probe the electronic states of the molecule via tunneling spectroscopy. |
Zoe Phillips ; Marzieh Kavand ; William Koll ; Morgan Hamilton ; Ethel Perez-Hoyos ; Rianna Greer ; Mehdi Maleki Sanukesh ; Yuxin Zhang ; Chun Ning Lau ; Takashi Taniguchi ; Michael Flatté ; Danna Freedman ; Jay Gupta ; Ezekiel Johnston-Halperin; |
| 428 | Microwave Spin Control of A Van Der Waals Solid-state Defect Ensemble Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we present findings concerning a specific group of defects found in a van der Waals material, specifically boron vacancies in hexagonal boron nitride (hBN). |
Souvik Biswas ; Giovanni Scuri ; Eric Rosenthal ; Yakub Grzesik ; Abigail Stein ; Rafael Basto ; Tongcang Li ; James Edgar ; Chong Zu ; Jelena Vuckovic ; Joonhee Choi; |
| 429 | Defect-assisted Electron Tunneling in 2D Van Der Waals Heterostructures Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This study reveals distinct resonance peaks in the differential conductance (dI/dV) corresponding to native defect states in hBN. |
Morgan Hamilton ; Marzieh Kavand ; Zoe Phillips ; Ethel Perez-Hoyos ; Daniel Pharis ; Yuxin Zhang ; Mingyu Xu ; Chun Ning Lau ; Takashi Taniguchi ; Paul Canfield ; Ezekiel Johnston-Halperin; |
| 430 | Nuclear Spin Polarization and Control in Hexagonal Boron Nitride Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report optical polarization and control of nuclear spins in a van der Waals material, hexagonal Boron Nitride (hBN), at room temperature. |
Sumukh Vaidya ; Xingyu Gao ; Kejun LI ; Peng Ju ; Kunhong Shen ; Saakshi Dikshit ; Sunil Bhave ; Yuan Ping ; Yong Chen ; Tongcang Li; |
| 431 | Spin Relaxation Due to Spin-phonon Coupling in Molecular Spin Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate how changes in the hyperfine interaction between the electron and the Lu nucleus, induced by phonon motion, impact spin relaxation. |
xiaoliang zhang ; Haechan Park ; Haiping Cheng ; Xiaoguang Zhang; |
| 432 | Computational Study of All-electrical Quantum Operations on Molecular Spin Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We solve the problem of a single electron scattering from two decoupled spin-1/2 magnetic impurities with a single-particle Green’s function treatment. |
Christian Bunker ; Silas Hoffman ; Shuanglong Liu ; Xiaoguang Zhang ; Hai-Ping Cheng; |
| 433 | Scalable Randomized Benchmarking with Mid-circuit Measurements Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In our talk, we will provide a detailed overview of the protocol before arguing that our protocol measures an average error rate of mixed circuit layers of Clifford gates and MCMs. |
Daniel Hothem ; Jordan Hines ; Robin Blume-Kohout ; Timothy Proctor; |
| 434 | Scalable Randomized Benchmarking with Mid-Circuit Measurements, Part 2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we introduce a fully scalable randomized benchmarking (RB) protocol for Clifford gates and mid-circuit measurements. |
Jordan Hines ; Daniel Hothem ; Robin Blume-Kohout ; Timothy Proctor; |
| 435 | A Simple Statistical Model for Randomized Benchmarking Data Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This makes statistically rigorous analysis of RB data difficult; as a result, RB data is typically analyzed with ad hoc curve-fitting. In our work, we solve this problem with a simple statistical model for RB data. |
Samyak Surti ; Jordan Hines ; Daniel Hothem ; Timothy Proctor; |
| 436 | IN-Situ Pulse Envelope Characterization Technique (INSPECT) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We use qubits as probes to measure distortions in microwave pulses in the Fourier domain. |
Zhang Jiang ; Jonathan Gross ; Elie Genois; |
| 437 | Automated Calibration of Two-Qubit Gates with Robust Phase Estimation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We use two-qubit RPE as the core of a closed-loop calibration routine for minimizing the coherent errors on a controlled-Z gate on a superconducting transmon qubit platform. |
Kenneth Rudinger ; Akel Hashim ; John Marceaux ; Kevin Young; |
| 438 | Experimental Characterization of Error Budgeting of Parametric Resonance Gate with Tunable Coupler Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We characterized different error sources including, incoherent, leakage, amplitude, and phase errors by varying the two-qubit gate time. |
Eyob Sete ; Vinay Tripathi ; Shobhan Kulshreshtha ; Daniel Lidar ; Josh Mutus; |
| 439 | Mid-circuit Measurements for Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will outline the state of MCMs for superconducting processors, discuss the difficulties in implementing feed-forward operations, and demonstrate ways in which MCMs can be improved. |
Akel Hashim; |
| 440 | Perturbative Analysis of Error Amplification for Quantum Gates’ Generators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Although EA plays an important role in the protocols, it is still unclear how and which parts of an implementation error of a gate are amplified by an EA gate sequence, except for some simple cases. Here we propose theoretical methods for analyzing such amplification effects of EAs on implementation errors in a perturbative way. |
Takanori Sugiyama; |
| 441 | Quantum Non-Markovian Noise Effects in Randomized Benchmarking Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We consider a model consisting of a qubit coupled to a multimode Bosonic bath. |
Srilekha Gandhari ; Michael Gullans; |
| 442 | Quantum Noise Spectroscopy Via Randomized Benchmarking Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Specifically, we leverage the filter function formalism and the fluctuations in RB due to time-correlated noise to perform parametric estimation of the power spectral density. Our analysis covers a wide range of noise spectra and compares the effectiveness of this combined approach to canonical QNS protocols. |
Rocio Gonzalez Meza ; Yasuo Oda ; Gregory Quiroz; |
| 443 | Characterizing Two-qubit Gates with Dynamical Decoupling Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate a novel characterization technique that enables precise estimation of select unitary parameters for two-qubit gates by applying dynamical decoupling to suppress low-frequency noise. |
Jonathan Gross ; Zhang Jiang ; Elie Genois ; Dripto Debroy ; Ze-Pei Cian ; Wojciech Mruczkiewicz; |
| 444 | Partial Characterization of Quantum Gates Using Character Eigenvalue Estimation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: One common approach for characterizing errors is quantum phase estimation; however, existing schemes for phase estimation are not entirely robust to state prep errors and are limited to characterizing specific types of noise, i.e coherent errors. To overcome these limitations, we introduce a technique that harnesses tools from representation theory to robustly and precisely estimate parameters of general Markovian noise processes, which call character eigenvalue estimation (CEE). |
Andrew Guo ; Jordan Hines ; Timothy Proctor ; Kevin Young; |
| 445 | The Quantum Algorithmic Reach of A High-Q Radio Frequency Cavity Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we study a realistic superconducting cavity coupled to a single noisy transmon. |
Nicholas Bornman ; Sohaib Alam ; Joshua Job ; Tanay Roy ; Namit Anand ; Gabriel Perdue ; Silvia Zorzetti; |
| 446 | Evidence for The Utility of Quantum Computing Before Fault Tolerance Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present experiments that produce reliable expectation values from noisy 100+ qubit processors, at a scale that is well beyond brute-force classical computation. |
Abhinav Kandala; |
| 447 | Improved Error Mitigation Protocol By Restricted Evolution Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose a constant runtime error mitigation protocol. |
Thi Ha Kyaw ; Gaurav Saxena; |
| 448 | Unification and Improvement of Quantum Error Mitigation Methods By Generalized Quantum Subspace Expansion Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we show that generalized quantum subspace expansion (GSE) enables us to apply the PEC without the need for an accurate characterization or modeling of noise and mitigates the bias of the undetectable errors for the symmetry verification. |
Shigeo Hakkaku ; Nobuyuki Yoshioka ; Yuuki Tokunaga ; Suguru Endo; |
| 449 | Inverted-circuit Zero-noise Extrapolation for Quantum Gate Error Mitigation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a method for estimating the error strength occurring in a given quantum circuit in order to improve the results of zero-noise extrapolation. |
Kathrin Koenig ; Thomas Wellens ; Finn Reinecke; |
| 450 | Uniformly Decaying Subspaces for Quantum Computation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that uniformly decaying subspaces can be created in a system of qubits undergoing strong relaxation with different decay rates and can be used to perform analog quantum computation. |
Nishchay Suri ; Jason Saied ; Davide Venturelli; |
| 451 | Error Mitigation for Analog Simulators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we target the dominant noise sources in analog simulation platforms by extending methods from digital computation to work within the restrictions of analog quantum simulators. |
Thomas Steckmann ; Alireza Seif ; Michael Gullans ; Alexey Gorshkov ; Alexander Schuckert; |
| 452 | Error Mitigation for IBM Quantum Devices Via Online Testing and Post-selection Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We aim to distinguish faulty and fault-free circuits with a high confidence level in a single shot. |
Cheng-Yun Hsieh ; James Chien-Mo Li; |
| 453 | A Graph-based Embedding of Dynamical Decoupling for Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present an automated and efficient method for determining an embedding of DD to suppress phase and cross talk errors for an arbitrary input circuit. |
Paul Coote ; Roman Dimov ; Gavin Hartnett ; Yuval Baum; |
| 454 | Scheduling Protocols for Context Aware Dynamical Decoupling Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce an adaptive DD approach based on various methods developed to address parasitic ZZ-coupling as well as more general environment induced decoherence. |
Paige Frederick ; Rich Rines ; Kaitlin Smith; |
| 455 | Empirical Optimization of Dynamical Decoupling on Quantum Processors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we employ a combinatorial optimization scheme to empirically discover device-tailored DD sequences. |
Christopher Tong ; Helena Zhang ; Bibek Pokharel; |
| 456 | Detection of Thermal Noise Dynamics in Quantum Computer Interconnects Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report a systematic study of thermal noise in five typical qubit drive lines in a dilution refrigerator. |
Slawomir Simbierowicz ; Massimo Borrelli ; Volodymyr Monarkha ; Ville Nuutinen ; Russell Lake; |
| 457 | Fast Universal Robust Quantum Gates Against Various Noises Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we report on experimental studies of robust quantum gates using superconducting qubits, based on a recent geometric framework for analyzing and mitigating generic errors. |
Yong-Ju Hai ; Kangyuan Yi ; Xiu-Hao Deng ; Yuanzhen Chen; |
| 458 | Statistical Properties of Environmental and Intrinsic Decoherence Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The aims of our study are to: 1) define the minimum required sampling time to accurately capture system performance and, 2) separate decoherence mechanisms intrinsic to the circuit versus environmental factors. |
Volodymyr Monarkha ; Slawomir Simbierowicz ; Massimo Borrelli ; Visa Vesterinen ; Debopam Datta ; Patrik Eskelinen ; Elsa Mannila ; Jukka-Pekka Kaikkonen ; Joonas Govenius ; Farid Hassani Bijarbooneh ; Johannes Fink ; Russell Lake; |
| 459 | Hybrid Quantum-Classical Preparation of Chemical Ground States Using Tensor Network-Based Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we present a novel approach for the design of quantum circuits modelled on tensor networks, for the purpose of preparing electronic ground states of chemical systems on noisy quantum hardware. |
Oskar Leimkuhler; |
| 460 | Learning Dynamic Quantum Circuits for State Preparation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, DQC constructions in prior works rely heavily on knowing the symmetries and structures of the state to be prepared. In this work we show how to variationally learn DQCs to produce target states in cases where such details are not known, thus extending the applicability of DQCs for state preparation. |
Faisal Alam ; Bryan Clark; |
| 461 | Characterizing Convergence Speed of Dissipative Ground State Preparation Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation, I redirect the interest focus by introducing mathematical techniques for analyzing the distance between the target and prepared states and the convergence speed. |
Ruben Ibarrondo ; Mikel Sanz; |
| 462 | Local Counterdiabatic Driving for Ground State Preparation: Mechanism, Improvement and Implementations Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our aim is to unravel the underlying mechanisms of LCD and to offer a comparative analysis against other quantum adiabatic protocols. |
Changhao Li ; Jiayu Shen ; Ruslan Shaydulin ; Marco Pistoia; |
| 463 | Quantum Computing Quantum Monte Carlo with Hybrid Tensor Network for Electronic Structure Calculations Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation, we propose an algorithm that combines QC-QMC with a hybrid tensor network (HTN) to extend the applicability of QC-QMC to systems beyond the size of a single quantum device, which is called HTN+QMC. |
Shu Kanno; |
| 464 | Exploring Quantum State Preparation Using Tensor Networks and Sparse Wavefunction Simulations Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In addition, we also test a related approach of using tensor networks to optimize quantum circuits in order to benchmark various lattice models. We present results using these approaches and discuss strategies for incorporating these ideas into variational algorithms involving near-term quantum computers. |
Norm Tubman; |
| 465 | Non-variational ADAPT Algorithm For State Preparation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we explore a variant of ADAPT that estimates the variational parameters based on the measurements made in the previous part for growing the ansatz and hence replace the VQE optimization subroutine. We compare the rate of energy lowering, circuit depth, and measurement cost for molecular models of the original ADAPT-VQE algorithm and its non-variational counterpart. |
Ho Lun Tang ; Prakriti Biswas ; Yanzhu Chen ; Christian Arenz ; Sophia Economou; |
| 466 | Efficient Low-Depth UCC Algorithm for Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we review progress made in the implementation of this algorithm, and look to future implementations. |
Jeremy Canfield ; James Freericks ; Dominika Zgid; |
| 467 | A Quantum Algorithm to Produce Any Eigenstate of Any Unitary Without Measurement Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I present a simplistic algorithm for coherently producing any eigenstate without measurement. |
Joseph Smith ; David Arvidsson-Shukur ; Crispin Barnes; |
| 468 | Towards A Description of The Ground State Properties of LiHm Complexes and Reaction Energetics of Hydrogenation of Small Li Clusters Using VQE-based Quantum Chemical Calculations Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We utilize the variational quantum eigensolver (VQE) using a unitary coupled cluster with singles and doubles (UCCSD) ansatz to simulate a series of LiH n molecules (n=1-3), including their singly charged ions. |
Dominic Alfonso ; Benjamin Avramidis ; Hari Paudel ; Yuhua Duan ; Kenneth Jordan; |
| 469 | Algorithms for Digital Quantum Simulations of 1+1 Dimensional Quantum Electrodynamics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present newly developed algorithms for digital quantum simulations of QED in 1+1 dimension (Schwinger Model) with nonzero topological θ-term, with a focus on the optimization of the gate count for ground state energy estimation. |
Marina Krstic Marinkovic ; Joao Pinto Barros ; Matteo D’Anna; |
| 470 | Quantum Simulation of Floating Phase and S = 1/2 Critical Behavior Using Spin Solid-state Spin Centers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose the first quantum simulator for the critical floating phase in solid-state materials. |
Troy Losey ; Denis Candido ; Jin Zhang ; Yannick Meurice ; Michael Flatté ; Shan-Wen Tsai; |
| 471 | An Electro-opto-mechanical Transducer Implementation for Downconversion of Squeezed States of Light Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our device uses a macroscopic mechanical mode of a Si 3N 4 membrane as an intermediary, to couple a superconducting LC circuit to a high finesse optical Fabry-Perot cavity for carrying out efficient and low noise frequency conversion across 5 orders of magnitude. Here, we present our ongoing experimental progress towards operating one of these converter devices with the goal of connecting a squeezed light source to the optical input, and preserving the quantum correlations after conversion to microwave frequencies. |
Jacob Davidson ; Carlos Bracamontes ; Sarang Mittal ; Kazemi Adachi ; Maxwell Urmey ; Luca Talamo ; Sheng-Xiang Lin ; Sarah Dickson ; Nicholas Frattini ; Cindy Regal ; Konrad Lehnert ; Tasshi Dennis; |
| 472 | Efficient Numerical Simulation of Microwave-optical Quantum Transducers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We evaluate the power spectrum with a pulsed input by one-time correlator of an auxiliary resonator operator, which greatly reduces the computational cost, since standard methods require the evaluation of two-time correlators. |
Katsuta Sakai ; Kazuki Koshino; |
| 473 | Efficiency and Noise Characterization of An On-chip Microwave to Optical Transducer Using 171Yb3+: YVO4 Crystals Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present our on-going efforts on an on-chip REI-based microwave to optical transducer using 171Yb 3+: YVO 4, with integrated superconducting microwave resonators and gold reflectors. |
Tian Xie ; Rikuto Fukumori ; Andrei Faraon; |
| 474 | Millimeter-Wave to Telecom Electro-Optic Frequency Transduction on Thin-Film Lithium Niobate Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: As next steps, we aim to study converted sideband asymmetry for mode thermometry and other optomechanical phenomena in the mmW regime. |
Jason Herrmann ; Kevin Multani ; Felix Mayor ; Wentao Jiang ; Erik Szakiel ; Matthew Maksymowych ; Luke Qi ; Emilio Nanni ; Amir Safavi-Naeini; |
| 475 | Microwave-to-Optical Quantum Transduction Utilizing The Topological Magnetoelectric Effect Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we focus on the transduction via the magneto-optic Faraday effect, i.e., the light-magnon interaction. |
Akihiko Sekine ; Mari Ohfuchi ; Yoshiyasu Doi; |
| 476 | Wide-band, Tunable and High-efficiency Microwave-to-acoustics Transduction on Lithium Niobate Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a wide-band high-efficiency transducer to perform microwave-to-acoustics transduction where an interdigital transducer (IDT) is used to couple to Lamb waves in suspended Lithium Niobate. |
Abel Hugot ; Quentin Greffe ; Franck Balestro ; Jérémie Viennot; |
| 477 | Nonlinear Microwave-optical Quantum Transduction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we study the possibility of generating pure single-photon pairs using SPDC with strong Kerr nonlinearity. |
Fangxin Li ; Liang Jiang; |
| 478 | Measurements of Cryogenic Mirror Thermal Noise and Its Impact on Quantum Electro-opto-mechanical Transducers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we will discuss how broadband thermal noise from our cryogenically cooled Fabry-Perot mirrors contributes to noise during single-photon readout. We will present measurements of this noise in a dry cycle dilution refrigerator and discuss attempts to suppress the noise by operating phonically filtered mirrors at cryogenic temperatures. |
Luca Talamo ; Maxwell Urmey ; Sarah Dickson ; Nicholas Frattini ; Sarang Mittal ; Kazemi Adachi ; Sheng-Xiang Lin ; Konrad Lehnert ; Cindy Regal; |
| 479 | Microwave-optical Transduction at Milli-Kelvin Temperatures Using Hybrid Bulk Acoustic Resonances Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Optical and microwave drives are pulsed to enable high peak pump powers while minimizing the local thermal load on the transducer. We will present our latest measurements characterizing the conversion efficiency of this new platform and discuss next steps in boosting the efficiency, including experimental upgrades and investigating new devices with higher optomechanical coupling. |
Erin Sheridan ; Samuel Schwab ; Alaina Attanasio ; Hao Tian ; Daniel Campbell ; Michael Senatore ; Andrew Brownell ; Nicholas Barton ; Amos Smith ; Terence Blesin ; Anat Siddarth ; Rui Wang ; Tobias Kippenberg ; Sunil Bhave ; Matthew LaHaye; |
| 480 | Electromechanical Cooperativity Greater Than 1,000 in An Electro-opto-mechanical Transducer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Surpassing the quantum threshold of 1 photon of added noise can be achieved by optimization of the microwave cavity loss rate, the technical noise induced by the microwave pump, and the electromechanical coupling rate. Here, we present progress on these optimizations with the goal of ground-state cooling the mechanical mode with the electromechanical interaction, a necessary requirement for quantum-enabled microwave-to-optical transduction. |
Sarang Mittal ; Kazemi Adachi ; Maxwell Urmey ; Luca Talamo ; Sheng-Xiang Lin ; Sarah Dickson ; Nicholas Frattini ; Cindy Regal ; Konrad Lehnert; |
| 481 | Coherent Microwave Single-photon Source for A Mechanically Mediated Electro-optic Transducer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present our experimental effort to build a coherent quantum source for our mechanically-mediated transducer. |
Sheng-Xiang Lin ; Nicholas Frattini ; Robert Delaney ; Sarang Mittal ; Kazemi Adachi ; Maxwell Urmey ; Luca Talamo ; Sarah Dickson ; Brendon Rose ; Cindy Regal ; Konrad Lehnert; |
| 482 | Acoustic Probing of Spin-phonon Interactions for Solid-state Defects in The Quantum Regime Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We develop a versatile technique to probe the resonant coupling of solid-state defects to strain in the absence of thermal motion. |
Quentin Greffe ; Jérémie Viennot ; Abel Hugot ; Franck Balestro; |
| 483 | Coherently Driving A Single Nuclear Spin Through The Resonance of A Nanomechanical Oscillator Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we present a more advanced spin-mechanical device where the dynamical strain induced at the clamping point of a resonating nanoscale cantilever is used to drive single-nucleus NAR, and illustrate a method of electrically detecting the resonant frequency of the nanocantilever. |
Laura O’Neill ; Daniel Schwienbacher ; Benjamin Joecker ; Juha Muhonen ; Andrea Morello; |
| 484 | Optomechanical Quantum Bus for Donor Spins in Silicon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The mechanical system can also be used to couple spins to each other in a controlled way. In this talk, I will present the fundamental concepts for such a proposal and numerical simulations regarding its implementation in a practical system of silicon nanobeams implanted with donors. |
Juha Muhonen ; Henri Lyyra ; Cliona Shakespeare ; Antti Kanniainen ; Arvind Kumar ; Teemu Loippo ; Simeoni Ahopelto; |
| 485 | Heron Processors on The Utility Frontier Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present an experimental characterization of Heron, a tunable-coupler-based quantum processor that demonstrates a material improvement in quality relative to prior generation 100+ qubit processors. |
David Lokken-Toyli; |
| 486 | Controlling Large Superconducting Quantum Processors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will discuss some of the challenges associated with controlling large superconducting quantum processors, automated strategies for overcoming them, and an outlook for the future. |
Paul Klimov; |
| 487 | Full-Stack Compilation and Optimization with The Quantinuum H-series Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our circuit submission stack has multiple layers of compilation and optimization, and in this talk we will highlight several of the options available for maximizing circuit utility and fidelity, including integrated TKET optimization. |
Nathaniel Burdick; |
| 488 | Entering The Quantum Utility Era: Challenges and Breakthroughs Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation I will review three key enablers of quantum utility for near-term quantum computers. |
Sabrina Maniscalco; |
| 489 | Abstracting Quantum Computation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk I will introduce some of the work we have been doing at Horizon Quantum Computing to simplify the task of programming quantum processors through increasing levels of abstraction, and discuss progress towards our goal of compiling classical code to take advantage of quantum processors, through automated synthesis of quantum algorithms. |
Joseph Fitzsimons; |
| 490 | Scaled Photonic Interfaces for Quantum Networking with Tin-vacancy Color Centers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In the decade since the first entanglement experiments with qubits in diamond, challenges of qubit uniformity, scaled interface efficiency, and system cost have mitigated the implementation of large-scale diamond-based quantum networks. This work addresses these challenges in a threefold manner. |
Ian Christen ; Hamza Raniwala ; Kevin Chen ; David Starling ; Isaac Harris ; Marco Colangelo ; Franco N C Wong ; Karl Berggren ; Scott Hamilton ; P. Benjamin Dixon ; Dirk Englund; |
| 491 | Single Telecom-wavelength Vanadium Quantum Emitters in SiC with Ultra-narrow Inhomogeneous Broadening Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will describe our work on telecom-ready single V4+ vanadium centres in 4H-SiC. |
Muhammad Junaid Arshad ; Pasquale Cilibrizzi ; Benedikt Tissot ; Nguyen Tien Son ; Ivan Ivanov ; Thomas Astner ; Philipp Koller ; Misagh Ghezellou ; Jawad Ul-Hassan ; Daniel White ; Christiaan Bekker ; Guido Burkard ; Michael Trupke ; Cristian Bonato; |
| 492 | Towards Mechanically Mediated Interference Between Tin Vacancy Centers in Diamond Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, a major challenge in quantum networks based on solid-state quantum emitters is the THz-scale inhomogeneous spectral distribution that prevents optical interference between separate emitters. In this work, we overcome this limitation by capacitive strain tuning of tin vacancy (SnV-) centers in a photonic integrated platform allowing for many GHz-scale tuning of color centers in different photonic channels. |
Hamza Raniwala ; Ian Christen ; Kevin Chen ; David Starling ; Benjamin Dixon ; Matthew Trusheim ; Dirk Englund; |
| 493 | Electronic Structure and Properties of A Spin Qubit Based on SnV Center in Diamond Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We take into account the critical contribution of the excited vibronic states of the SnV center and their contribution to the spin and orbital angular momentum. |
Viatcheslav Dobrovitski ; Mao-Hua Du ; Xinru Tang ; Fenglei Gu ; Johannes Borregaard; |
| 494 | Control and Coherence of Tin-vacancy Qubits in Diamonds Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we report on our progress towards an efficient nanophotonic spin-photon interface for a quantum network node using the SnV. |
Hans Beukers ; Christopher Waas ; Matteo Pasini ; Nina Codreanu ; Julia Brevoord ; Tim Turan ; Lorenzo De Santis ; Zarije Ademi ; Ronald Hanson; |
| 495 | The Tin-vacancy Center in Diamond As A Quantum Memory Node at 4 K Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we report on the recent experimental results of implementing a quantum memory by performing multi qubit gates of the electronic spin and nearby nuclei. |
Alexander Stramma ; Xinghan Guo ; William Roth ; Zixi Li ; David Awschalom ; Benjamin Pingault ; Nazar Delegan ; Joseph Heremans ; Alexander High ; Mete Atatüre; |
| 496 | Coherence Protection and Microwave Spin Manipulation of Tin Vacancy Centers in Strained Diamond Membrane Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, each group IV center comes with trade-offs between elevated operation temperature beyond sub-Kelvin and fast, high fidelity microwave spin manipulation. In this work, we introduce a new platform to address this incompatibility: tin vacancy centers in strained diamond membranes. |
Xinghan Guo ; Alexander Stramma ; Zixi Li ; William Roth ; Tianle Liu ; David Awschalom ; Benjamin Pingault ; Nazar Delegan ; F. Joseph Heremans ; Mete Atatüre ; Alexander High; |
| 497 | Microwave Spin Control of A Tin-Vacancy Qubit in Diamond Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This allows for long spin lifetimes at elevated temperatures, but suppresses the magnetic dipole transitions desired for quantum control. By use of a naturally strained center, we overcome this limitation to achieve fast, high fidelity microwave spin control on a single SnV- spin. |
Eric Rosenthal ; Christopher Anderson ; Hannah Kleidermacher ; Abigail Stein ; Hope Lee ; Jakob Grzesik ; Giovanni Scuri ; Alison Rugar ; Daniel Riedel ; Shahriar Aghaeimeibodi ; Geun Ho Ahn ; Kasper Van Gasse ; Souvik Biswas ; Jelena Vuckovic; |
| 498 | Understanding The Spin-selective Transitions of Defect Spins By Ab Intio Theory of Spin-spin and Spin-orbit Coupling Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we address the open question regarding the spin-relaxation mechanism using our embedding approach (CI-cRPA) based on configuration interaction and a screened electron-electron interaction derived from hybrid density functional theory. |
Michel Bockstedte ; Maximilian Schober ; Mirjam Neubauer; |
| 499 | Fiber-coupled Waveguide Probe Co-integrated with Electrical Control As A Cryogenic Photonic Interface Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we demonstrate a low-loss two-port optical interface for coupling to high quality factor silicon carbide resonators. |
Dominic Catanzaro ; Daniil Lukin ; Eran Lustig ; Melissa Guidry ; Jelena Vuckovic; |
| 500 | Probabilistic Error Cancellation for Dynamic Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we extend the application of PEC from unitary-only circuits to dynamic circuits with measurement-based operations, such as mid-circuit measurements and classically-controlled (feedforward) Clifford operations. |
Riddhi Swaroop Gupta ; Ewout van den Berg ; Maika Takita ; Kristan Temme ; Abhinav Kandala; |
| 501 | Suppressing Errors in Quantum Circuits Using Real-time, Closed-loop Feedback Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, building on prior work with single qubits [1], we introduce a framework for using real-time, closed-loop feedback to stabilize frequency fluctuations in a grid of tunable transmons interacting via tunable couplers. |
Lukas Pahl ; David Pahl ; Melvin Mathews ; Kevin Kiener ; Antti Vepsäläinen ; Youngkyu Sung ; Roni Winik ; David Kim ; Bethany Niedzielski ; Jonilyn Yoder ; Mollie Schwartz ; Kyle Serniak ; Simon Gustavsson ; Jeffrey Grover ; William Oliver; |
| 502 | Improving Readout of A Superconducting Qubit Using The Path Signature Method Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose that using path signature methods to extract features can enhance existing techniques for quantum state discrimination [2]. |
Shuxiang Cao ; Zhen Shao ; Jian-Qing Zheng ; Mohammed Alghadeer ; Simone Fasciati ; Michele Piscitelli ; Sajjad Taravati ; Mustafa Bakr ; Terry Lyons ; Peter Leek; |
| 503 | Transmon Readout in The Large Detuning Limit – PART 1 / 2: Design of The Experiment Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We then elucidate the properties of dispersive readout in the far-detuned regime by deriving a simple model that accounts for the dressing of the transmon states by the strong probe tone. |
Thomas Connolly ; Pavel Kurilovich ; Charlotte Boettcher ; Heekun Nho ; Andy Ding ; Spencer Diamond ; Valla Fatemi ; Michel Devoret; |
| 504 | Transmon Readout in The Large Detuning Limit – PART 2 / 2: Results and Their Interpretation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We then elucidate the properties of dispersive readout in the far-detuned regime by deriving a simple model that accounts for the dressing of the transmon states by the strong probe tone. |
Pavel Kurilovich ; Thomas Connolly ; Charlotte Boettcher ; Heekun Nho ; Andy Ding ; Spencer Diamond ; Valla Fatemi ; Michel Devoret; |
| 505 | Fast, Unconditional Reset and Leakage Reduction in Fixed-frequency Transmon Qubits Toward Fault-tolerant Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The fixed-frequency qubits have improved coherence times compared to tunable qubits; however, they lack the capabilities to run currently proposed reset protocols without additional circuit elements. To address these challenges, we present an unconditional reset scheme of the fixed-frequency qubits by sending a fast flux pulse to the existing tunable couplers between the qubits. |
Liangyu Chen ; Simon Fors ; Benjamin Lienhard ; Eleftherios Moschandreou ; Anaida Ali ; Stefan Hill ; Anton Frisk Kockum ; Per Delsing ; Jonas Bylander ; Giovanna Tancredi; |
| 506 | Leakage Detection in Integer Fluxonium Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a protocol of erasure conversion on integer fluxonium qubits. |
Jiakai Wang ; Vladimir Manucharyan ; Maxim Vavilov; |
| 507 | Suppressing Leakage in Sub-10-ns Single-qubit Gates Using Heuristic Pulse Shape Engineering Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose and demonstrate a new method for engineering control pulse shapes to suppress leakage errors in single-qubit gates. |
Eric Hyyppä ; Antti Vepsäläinen ; Miha Papic ; Jyrgen Luus ; Brian Tarasinski ; Sebastian Orbell ; Wei Liu ; Alessandro Landra ; Caspar Ockeloen-Korppi ; Fabian Marxer ; Chun Fai Chan ; Juha Hassel ; Kuan Tan ; Johannes Heinsoo; |
| 508 | Enhancing Dispersive Readout of Superconducting Qubits Through Dynamic Control of The Dispersive Shift: Experiment and Theory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By dynamically reducing the qubit-resonator detuning and thus increasing the dispersive shift, we demonstrate a beyond-state-of-the-art two-state-readout error of only 0.25% in 100 ns integration time. |
François Swiadek ; Ross Shillito ; Paul Magnard ; Ants Remm ; Christoph Hellings ; Nathan Lacroix ; Quentin Ficheux ; Dante Colao Zanuz ; Graham Norris ; Alexandre Blais ; Sebastian Krinner ; Andreas Wallraff; |
| 509 | Commercial HEMT Amplifiers for Cryogenic Readout of Quantum Dot Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we report the performance of various transistors at cryogenic temperatures to better inform cryogenic amplifier design. |
Valerie Ang ; Mridul Pushp ; Seongwoo Oh ; Anthony Sigillito; |
| 510 | Improving Fidelities of Spin Ensemble Qubits Through Exchange Coupling Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By judiciously choosing a spin system, our work aims to determine the optimal spacing to balance the adverse effects of dipolar interaction-induced dephasing against the favorable influence of the Heisenberg exchange interaction that favors aligned spin states. |
Md Fahim F Chowdhury ; Aniruddha Chakraborty ; Mohamad Niknam ; Louis-S. Bouchard ; Jayasimha Atulasimha; |
| 511 | Reflectionless Filter for Superconducting Quantum Circuits Reflectionless Filter for Superconducting Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Microwave circulators and Josephson Junction parametric amplifiers are critical parts of superconducting quantum measurement systems. In particular JTWPA amplifiers have … |
jessica kedziora ; Eric Bui ; Andres Lombo ; Kaidong Peng ; Kevin O’Brien; |
| 512 | Non-standard Gates in Superconducting Parametric Gate Architectures Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present results on non-standard parametric entangling gates optimized for speed and leakage suppression while maintaining efficient compilation to standard two-qubit gates. |
Charles Guinn ; Shashwat Kumar ; Henry Prestegaard ; Camille Le Calonnec ; Basil Smitham ; Alexandre Blais ; Andrew Houck; |
| 513 | High-fidelity Parametric Entangling Gates for Superconducting Quantum Processors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we realize and benchmark high-fidelity iSWAP and CZ gates between qubits. |
Larry Chen ; Kan-Heng Lee ; Noah Goss ; Ziqi (Candice) Kang ; Ravi Naik ; David Santiago ; Irfan Siddiqi; |
| 514 | Demonstration of Two-qubit Gates Under Different Bias Conditions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present our work on achieving high-fidelity randomized benchmarked two-qubit gate under different idling conditions of the qubit bias. |
Xian Wu ; Dorsa Komijani ; Angela Chen ; Riccardo Manenti ; Eyob Sete ; Stefano Poletto; |
| 515 | The Effect of Spectator Qubit on CR Gate Performance Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study the entropy flow from one spectator qubit to another spectator qubit via the control and target qubits. |
Radhika Hemant Joshi ; Mohammad Ansari ; Alwin van Steensel; |
| 516 | Stray Multiqubit Interactions in Quantum Processors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we delve into an investigation of the influence of stray couplings within a multiqubit circuit. We introduce analytical expressions to quantitatively measure these effects, highlighting the essential parameters to mitigate their parasitic impact. |
Xuexin Xu ; Chloé Vignes ; Mohammad Ansari ; Manabputra . ; John Martinis; |
| 517 | Modelling Two-qubit Gates of Superconducting Transmon Processors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We develop a noise model based on Hamiltonian simulation of coupled three-level systems, taking into account higher transmon levels and their anharmonicities. |
Michael Krebsbach; |
| 518 | Bichromatic Driving in Floquet Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study bichromatically driven single and coupled qubit systems for their application in single and two-qubit Floquet gates. |
Bibek Bhandari ; Debmalya Das ; Long Nguyen ; Yosep Kim ; David Santiago ; Justin Dressel ; Irfan Siddiqi ; Andrew Jordan; |
| 519 | Investigating Single-Qubit Gate Speed and Fidelity Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To explore improvements to single qubit gates, we investigate qubit leakage and gate fidelities in planar transmon devices. |
Zachary Steffen ; Haozhi Wang ; Yizhou Huang ; Yi-Hsiang Huang ; Sudeep Dutta ; Kungang Li ; Frederick Wellstood ; Benjamin Palmer; |
| 520 | Fast, High Fidelity, Quantum Non-demolition Readout with An Intrinsically Purcell Protected Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate an intrinsically Purcell protected qubit realized in a multimodal circuit [2], while retaining strong measurability through a mediated dispersive interaction. |
Sumeru Hazra ; Wei Dai ; Jayameenakshi Venkatraman ; Xu Xiao ; Zhixin Wang ; Luigi Frunzio ; Michel Devoret; |
| 521 | Readout of A Transmon Qubit Using An All-Pass Readout Resonator with Interference Purcell Suppression Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we demonstrate transmission-based readout of a transmon qubit using a directional readout resonator. |
Alec Yen ; Yufeng Ye ; Kaidong Peng ; Jennifer Wang ; Gregory Cunningham ; Michael Gingras ; Bethany Niedzielski ; Hannah Stickler ; Kyle Serniak ; Mollie Schwartz ; Kevin O’Brien; |
| 522 | Lumped-Element Filters for Protecting Qubits from Control and Readout Ports Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we describe our efforts to decouple the qubits from both the readout and the parametric control ports. |
Kaixuan Ji ; José Estrada ; Katarina Cicak ; Zachary Parrott ; Kristen Genter ; Raymond Simmonds; |
| 523 | Fast, 3D-integrated Qubit Readout Using A Combined Bandpass and Intrinsic Notch Filter Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present experimental results on a 3D-integrated superconducting circuit device with CPW readout resonators that couple to dedicated Purcell resonators through a section of their transmission line. |
Peter Spring ; Luka Milanovic ; Yoshiki Sunada ; Shiyu Wang ; Shuhei Tamate ; Yasunobu Nakamura; |
| 524 | Broadband Purcell Filter Design for Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we present a systematic way to design multi-stage broad bandpass Purcell filters by use of a classical filter synthesis technique. |
Haoxiong Yan ; Xuntao Wu ; Andrew Lingenfelter ; Yash Joshi ; Gustav Andersson ; Christopher Conner ; Ming-Han Chou ; Joel Grebel ; Jacob Miller ; Rhys Povey ; Hong Qiao ; Aashish Clerk ; Andrew Cleland; |
| 525 | Rapid Unconditional Active Reset of Frequency-tunable Superconducting Qubits Via A Metamaterial Waveguide Purcell Filter Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce a rapid unconditional active reset scheme for frequency-tunable superconducting qubits by coupling qubits directly to a dispersive bath realized by a metamaterial waveguide Purcell filter. |
Gihwan Kim ; Andreas Butler ; Oskar Painter; |
| 526 | Purcell Filtering for Qubit Readout Using Intrinsic Geometric Multi-modes of The Transmon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we report a novel Purcel filtering technique in cQED by ustilising the instristic multiple geometric modes of the quantum circuit. |
Mustafa Bakr ; Mohammed Alghadeer ; Simone Fasciati ; Shuxiang Cao ; Smain Amari ; Michele Piscitelli ; Sajjad Taravati ; Peter Leek; |
| 527 | Tin As A Nuclear Spin Qubit in Silicon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we will discuss the potential of isoelectronic nuclear spins qubits, with an emphasis on tin [PRX Quantum 3, 040320 (2022)]. |
Wayne Witzel; |
| 528 | Probing The Single-particle Valley Relaxation Time in Bilayer Graphene Quantum Dots Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we report single-particle valley relaxation times of up to 7 μs in a BLG quantum dot, sufficiently long to utilize a valley state for coherent manipulation. |
Katrin Hecker ; Luca Banszerus ; Lin Wang ; Samuel Möller ; Kenji Watanabe ; Takashi Taniguchi ; Guido Burkard ; Christian Volk ; Christoph Stampfer; |
| 529 | Simulating Spin-valley Locking in The Transport Spectroscopy of Bilayer Graphene Quantum Dots Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Keeping in mind recent experiments [1-2], we present a detailed simulation of the transport spectroscopy [3] of bilayer graphene single quantum dots, considering the spin-valley physics in detail. |
Bhaskaran Muralidharan ; Sundeep Kapila; |
| 530 | Characterizing Spin-valley-blockades in The Bilayer Graphene System Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The comprehensive and integrated computational models developed in this study thus lay a foundation for future experiments in the field of transport spectroscopy in other 2D-material platforms for the experimental realization of spin-valley qubits. |
Bhaskaran Muralidharan ; Ankan Mukherjee ; Adil Khan ; Anuranan Das; |
| 531 | Characterizing The Effective G-tensor of Hole Qubits in Planar Germanium Quantum Wells Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we use a nonsymmetrized multiband k·p theory to investigate the dependence of the qubit’s effective g-tensor to experimentally relevant parameters such as strain and electric and magnetic field strength and orientation. |
Ralph Colmenar ; Charles Tahan; |
| 532 | Boundary Conditions for A Hole Spin Qubit in A Ge Quantum Dot Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: One main difficulty of studying holes in a realistic heterostructure is the coupled boundary conditions, which are a direct result of the multi-band theory. In this talk, we will introduce a perturbative treatment to address this boundary condition problem. |
Jiawei Wang ; Xuedong Hu ; Herbert Fotso; |
| 533 | Oral: Sweet Spots and Sweet Lines in Ge/GeSi Hole Spin Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We theoretically investigate sweet spots and sweet lines in Ge/GeSi hole spin qubit heterostructures with different symmetries (disk-shaped, squeezed and displaced hole quantum dots, under homogeneous and inhomogeneous strains). |
Lorenzo Mauro ; Esteban Alonso Rodriguez Mena ; Yann-Michel Niquet; |
| 534 | A Study of Symmetry-protected Topology of Surfaces of Maximum Entanglement in Si, Ge and GaAs for Spin-qubit Architectures Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The topology of the surfaces where det(g) = 0 is particularly intricate in the case of the first conduction bands of Si and the second conduction band of Ge. We observe that these surfaces can be as complex as Fermi surfaces and share similar characteristics. |
Mira Ramakant Sharma ; David DiVincenzo; |
| 535 | Observation of Microsecond Lived Quantum States in Carbon-based Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By performing quantum manipulations such as Rabi oscillations, Ramsey fringes and spin echoes, we demonstrate coherence times of the order of 1 μs, 2 orders of magnitude larger that what has been measured so far in any carbon quantum circuit and 1 order of magnitude larger than Si based quantum dots in comparable environment. |
Benoît Neukelmance ; Benjamin Hue ; Lucas Jarjat ; Arnaud Thery ; William Legrand ; Jules Craquelin ; Tino Cubaynes ; Gulibusitan Abulizi ; Jeanne Becdelievre ; Maria El Abassi ; Quentin Schaeverbeke ; Audrey Cottet ; Matthieu Desjardins ; Matthieu Delbecq ; Takis Kontos; |
| 536 | Sweet Spot Combining Qubit Coherence and Speed Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This seems to suggest that stronger SOI leads to faster qubit operation but only at the cost of coherence. Here, we provide experimental evidence in a Ge/Si core/shell nanowire demonstrating a qubit which reaches its most coherent point of operation exactly when its speed is the fastest, coinciding with vanishing derivatives of its g-factor with respect to all gates. |
Miguel Carballido ; Simon Svab ; Rafael Eggli ; Pierre Chevalier Kwon ; Erik P. A. M. Bakkers ; Ang Li ; Jonas Schuff ; Taras Patlatiuk ; José Egues ; Carlos ; Stefano Bosco ; Daniel Loss ; Dominik Zumbuhl; |
| 537 | Mechanism of High-temperature Quantum Dot Operation in Isoelectronic-trap-assisted Tunnel FETs Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation, we report the device simulation clarifying the high-temperature SET operation mechanism. |
Shota Iizuka ; Hidehiro Asai ; Kimihiko Kato ; Hiroshi Oka ; Junichi Hattori ; Koichi Fukuda ; Takahiro Mori; |
| 538 | Markovian Errors in Higher-Dimensional Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This work provides a theoretical foundation for building efficient models of small Markovian errors in quantum computing platforms beyond those based on qubits, with potential applications to tomography and benchmarking. |
Yale Fan ; Kevin Young ; Robin Blume-Kohout; |
| 539 | Automated Model Selection with First-Order Gauge-Invariant Parameters Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this project, we implement the automated model selection algorithm using first-order gauge-invariant (FOGI) parameters, which eliminates the gauge freedom problem and simplifies the landscape. |
Juan Gonzalez De Mendoza ; Robin Blume-Kohout ; Corey Ostrove ; Stefan Seritan; |
| 540 | Streamlining Gate Set Tomography Experiment Designs Using Optimal Design Theory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we show how to leverage tools from the field of optimal experimental design, such as the analysis of the Fisher information, to identify and strip out redundant circuits from within the iterative structure of traditional GST experiment designs. |
Corey Ostrove ; Kevin Young ; Robin Blume-Kohout; |
| 541 | Idle Tomography Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce idle tomography, a protocol specially tailored to efficiently estimate the error weights of the idle process. |
Kyle Skolfield ; Corey Ostrove ; Kenneth Rudinger ; Robin Blume-Kohout ; Robin Blume-Kohout ; John Gamble ; Erik Nielsen; |
| 542 | Gaussian Boson Sampling: Determining Quantum Advantage Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: A Gaussian Boson Sampler (GBS) is a non-universal optical quantum computer designed to unequivocally demonstrate quantum advantage. The output distributions of such devices are … |
Peter Drummond ; Alex Dellios ; Ned Goodman ; Margaret Reid ; Ben Villalonga; |
| 543 | Attention to Complexity I: Witnessing The Entanglement Phase Transition with Attention-based Neural Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Adopting the philosophy of "measure first, ask questions later", we propose an attention-based neural network called quantum attention networks (QAN) to process measurement outcomes. |
Yiqing Zhou ; Hyejin Kim ; Yichen Xu ; Chao Wan ; Jin Zhou ; Amir Karamlou ; William Oliver ; Kilian Weinberger ; Eun-Ah Kim; |
| 544 | Attention to Complexity II: Attention Based Quantum Decoder Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Using the machinery of the quantum attention networks (QAN),we study the phase diagram of error correcting codes, under coherent and incoherent perturbations. |
Yichen Xu ; Hyejin Kim ; Yiqing Zhou ; Nishad Maskara ; Iris Cong ; Mikhail Lukin ; Eun-Ah Kim ; Chao Wan ; Kilian Weinberger ; Jin Zhou; |
| 545 | Attention to Complexity III: Learning The Complexity of Random Quantum Circuit States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that QAN can learn past anti-concentration on simulated data. |
Hyejin Kim ; Yiqing Zhou ; Yichen Xu ; Chao Wan ; Jin Zhou ; Yuri Lensky ; Jesse Hoke ; Pedram Roushan ; Kilian Weinberger ; Eun-Ah Kim; |
| 546 | Analytically Continuing The Randomized Measurement Toolbox Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We explore various analytic continuation techniques, including conventional fitting-based methods, and optimization-based methods. |
Ayush Raj ; Akash Vijay ; Laimei Nie ; Jonah Kudler-Flam; |
| 547 | Entropic Uncertainty of Random Quantum States and Their Application to Data Encryption Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present one interesting property of random quantum states and their application to the encryption of data. |
Sangchul Oh; |
| 548 | Single-Photon Measurement of Two-Qubit States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show here that quantum state tomography of an arbitrary two-qubit photonic mixed state can be performed without detecting one of the photons. |
Salini Rajeev ; Mayukh Lahiri; |
| 549 | Efficient Learning of Response Functions for Analog Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: For these systems to serve as reliable computing platforms, we need a response function that maps programmed inputs to specific properties of the observed output distribution. In this study, we introduce an efficient machine learning method to learn such response functions from the measurement data obtained from these systems. |
Cenk Tüysüz ; Abhijith Jayakumar ; Marc Vuffray ; Carleton Coffrin ; Andrey Lokhov; |
| 550 | Exploring The Potential of A Commercially Available Superconducting QPU System Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a commercially available superconducting QPU system rooted from a tripartite collaboration, consisting a 5-qubit chip (Quantware), a TWPA (Quantware), a customized dilution refrigerator (FormFactor Inc.), and a FPGA-based Digital Direct Synthesis (DDS) system (Tabor Electronics Ltd.). |
X. Jin ; Jason Ball ; Mark Elo ; Brandon Boiko ; Jack DeGrave ; Tijmen de Jong ; Matthijs Rijlaarsdam ; Pepijn Rot; |
| 551 | Verifying That 3-photon Parametric Down-conversion Is A Nonclassical Resource Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: While we have generated correlated three-photon states with highly non-Gaussian statistics, key quantum properties such as negativity of the Wigner function and non-Gaussian entanglement have not been confirmed. Our work here aims to observe Wigner negativity of a tri-squeezed vacuum state generated by three-photon down-conversion into a single frequency mode of the cavity as a demonstration of this platform’s capabilities to generate nonclassical resource states. |
Benjamin Jarvis-Frain ; C. W. Sandbo Chang ; Ibrahim Nsanzineza ; Dmytro Dubyna ; Christopher Wilson; |
| 552 | Improved State Preparation for First-quantized Simulation of Electronic Structure Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present several improvements to state preparation algorithms for the first-quantized simulation of electronic structure. |
William Huggins ; Oskar Leimkuhler ; Torin Stetina ; Birgitta Whaley; |
| 553 | Benchmarking Quantum Chemistry Simulations on Heterogeneous Systems Using CUDA Quantum Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our research, performed on NERSC’s Perlmutter system, highlights large-scale multi-GPU simulations and compares the performance between commonly used approaches such as VQE, the Adaptive VQE and the Number-Preserving Ansatz algorithms. |
Pooja Rao ; Jonathan Owens ; Alex McCaskey ; Marwa Farag ; Jin-Sung Kim ; Annarita Giani; |
| 554 | A Quantum Materials Simulator Based on Coulomb-confined Quantum Dots Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we show that atomically precise Coulomb-confined quantum dots allow for the controllable simulation of two-dimensional quantum materials. |
Matthew Donnelly ; Joris Keizer ; Dylan Pye ; Mitchell Kiczynski ; Samuel Sutherland ; Christian Moehle ; Yousun Chung ; Ludwik Kranz ; Samuel Gorman ; Michelle Simmons; |
| 555 | Digital Quantum Simulation of Controlled Molecular Dynamics in First Quantization Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In pursuit of this goal, simulations are essential for designing laser fields that achieve a desired control outcome. In this talk, we investigate the viability of quantum computers for performing these simulations in the presence of low-probability logical errors. |
Max Porter ; Andrew Baczewski ; Stefan Seritan ; Alicia Magann; |
| 556 | Qutrit Circuits and Algebraic Relations: A Pathway to Efficient Spin-1 Hamiltonian Simulation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: As an innovative approach towards enhancing qudit circuit fidelity, we explore algebraic relations, such as the Yang-Baxter-like turnover equation, that may enable circuit compression and optimization. The paper introduces the turnover relation for the three-qutrit time propagator and its potential use in reducing circuit depth. |
Oluwadara Ogunkoya ; Joonho Kim ; Bo Peng ; Baris Ozguler ; Yuri Alexeev; |
| 557 | Anomaly Inflow, Foliation, and Measurement-based Quantum Simulation of Abelian Lattice Gauge Theories Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Motivated by Measurement-Based Quantum Computation, we explore a family of custom-designed resource states for Ising/gauge theories, employing adaptive measurement on bulk qubits. |
Hiroki Sukeno ; Aswin Parayil Mana ; Takuya Okuda; |
| 558 | Measurement Based Simulation of Geometric Gates in Topological Qubits on NISQ Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: While the adiabatic exchange of Majorana zero modes (MZMs) enables a non-universal set of geometrically protected gates, realising an experimental implementation of MZM braiding … |
Matthew Brooks ; Silas Hoffman ; Charles Tahan; |
| 559 | An Efficient Quantum Algorithm for Building Effective Hamiltonians on Fault-tolerant Hardware Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a novel quantum algorithm for constructing effective Hamiltonians built upon the methodology of density matrix downfolding (DMD). |
Shivesh Pathak ; Antonio Russo ; Alicia Magann ; Eric Bobrow ; Stefan Seritan ; Andrew Landahl ; Andrew Baczewski; |
| 560 | Quantum Simulation of The Bosonic Kitaev Chain Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we utilize our analog quantum simulation (AQS) platform to realize the bosonic counterpart of the fermionic Kitaev chain, a 1D tight-binding model with nearest-neighbor hopping and pairing terms. |
Jamal Busnaina ; Zheng Shi ; Alexander McDonald ; Dmytro Dubyna ; Ibrahim Nsanzineza ; Jimmy Shih-Chun Hung ; CW Chang ; Aashish Clerk ; Christopher Wilson; |
| 561 | Expanding Hardware-Efficiently Manipulable Hilbert Space Via Hamiltonian Embedding Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this paper, we propose a technique named Hamiltonian embedding that simulates a desired Hamiltonian evolution by embedding it into the evolution of a large and structured quantum system, which, however, allows more efficient manipulation via hardware-native operations. |
Jiaqi Leng ; Joseph Li ; Yuxiang Peng ; Xiaodi Wu; |
| 562 | Efficient Spin-1 Ground States Preparation with Qutrit-based Quantum Hardware Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we extend the existing qubit gate set to include single qutrit gates obtained by accessing the second excited state of IBM Quantum’s hardware. |
Keerthi Kumaran ; Lukasz Cincio ; Nicholas Bronn ; Norhan Eassa ; Kaelyn Ferris ; Xiao Xiao ; Arnab Banerjee; |
| 563 | Digital Simulations of Fermion-Boson Models on A Quantum Computer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: These encoding methods, though, have been found to be very inefficient. We propose an alternative architecture to solve this problem, which is based on a superconducting platform with transmons coupled to additional resonators traditionally used for quantum-information storage. |
Riccardo Roma ; Tim Bode ; Alessandro Ciani ; Dmitry Bagrets ; Frank Wilhelm-Mauch; |
| 564 | Oral: Optimizing Quantum Circuits Consisting of Millions of Gates Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Herein, we bridge the performance gap and present a method and the tools for optimizing very large-scale quantum circuits. |
Ioana Moflic ; Alexandru Paler; |
| 565 | Synthesizing Quantum-Circuit Optimizers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This work presents QUESO, an efficient approach for automatically synthesizing a quantum-circuit optimizer for a given quantum device. |
Amanda Xu ; Abtin Molavi ; Lauren Pick ; Swamit Tannu ; Aws Albarghouthi; |
| 566 | Choosing An Optimal Pass Set for Quantum Transpilation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: As a result, we often see counter-intuitive effects where the fidelity of a target application decreases despite using state-of-the-art optimizations or a combination of them. To overcome this challenge, we propose OPTRAN, a framework for Choosing an Optimal Pass Set for Quantum Transpilation. |
Siddharth Dangwal ; Gokul Subramanian Ravi ; Lennart Maximilian Seifert ; Frederic Chong; |
| 567 | Qubit Mapping and Routing Via MaxSAT Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we develop a novel approach for optimally solving the QMR problem via a reduction to the maximum satisfiability problem (MAXSAT). |
Abtin Molavi ; Amanda Xu ; Martin Diges ; Lauren Pick ; Swamit Tannu ; Aws Albarghouthi; |
| 568 | Multi-mode Cavity Centric Architectures for Quantum Simulation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report the development of a transpiler for quantum simulation, leading to reductions of up to 82% in circuit depths. |
Samuel Stein ; Fei Hua ; Chenxu Liu ; Charles Guinn ; James Ang ; Eddy Zhang ; Srivatsan Chakram ; Yufei Ding ; Ang Li; |
| 569 | Efficient Quantum Gate Decomposition Via Adaptive Circuit Compression Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report on a novel quantum gate approximation algorithm based on the application of parametric two-qubit gates in the synthesis process. |
Zoltan Zimboras ; Peter Rakyta; |
| 570 | QFactor: A Domain-Specific Optimizer for Quantum Circuit Instantiation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce a domain-specific algorithm for numerical optimization operations used by quantum circuit instantiation, synthesis, and compilation methods. |
Ed Younis ; Alon Kukliansky ; Lukasz Cincio ; Costin Iancu; |
| 571 | Introducing Hardware Awareness to PCOAST Synthesis Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we discuss the extension of PCOAST synthesis to include constraints by extending the definitions of the synthesis search functions. |
Albert Schmitz; |
| 572 | Routing Quantum Circuits with AlphaZero Deep Exploration (Part 1/2) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Due to the large search space for such circuit transformations, coupled with a high branching factor, the majority of existing algorithms tend to conduct only superficial searches, often resulting in solutions that are at best locally optimal. We propose an AlphaZero-inspired algorithm for systematically averting this limitation. |
Marvin Richter ; David Fitzek ; Mats Granath ; Anton Frisk Kockum; |
| 573 | Routing Quantum Circuits with AlphaZero Deep Exploration (Part 2/2) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Due to the large search space for such circuit transformations, coupled with a high branching factor, the majority of existing algorithms tend to conduct only superficial searches, often resulting in solutions that are at best locally optimal. We propose an AlphaZero-inspired algorithm for systematically averting this limitation. |
David Fitzek ; Marvin Richter ; Mats Granath ; Anton Frisk Kockum; |
| 574 | Model-Based Reinforcement Learning for Quantum Circuit Synthesis Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Past work has shown how Machine Learning (ML) can be used to accelerate this process by providing seed circuits from which to start synthesis. This work addresses scalability issues present in this previous work. |
Mathias Weiden ; Ed Younis ; John Kubiatowicz ; Costin Iancu; |
| 575 | All-Optical Single Shot Readout of A Superconducting Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate all-optical single-shot readout by means of the Jaynes-Cummings nonlinearity in a circulator-free readout scheme. |
Georg Arnold ; Thomas Werner ; Rishabh Sahu ; Liu Qiu ; Lucky Kapoor ; Johannes Fink; |
| 576 | Mechanical Modes Manipulation in Magnomechanical and Optomechanical Hybrid System Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we develop a hybrid platform to manipulate the mechanical degrees of freedom with magnetostrictive interaction and optically through the radiation pressure. |
Mai Zhang; |
| 577 | Coherence Studies of Hundreds of Overtone Modes in A Bulk Acoustic Wave Resonator Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present a study of the coherence properties of hundreds of HBAR modes spanning several-GHz in frequency. |
Arianne Brooks ; Lukas Deeg ; Pietro Borghi ; Hugo Doeleman ; Uwe von Lüpke ; Maxwell Drimmer ; Joost Bus ; Gerhard Kirchmair ; Yiwen Chu; |
| 578 | Manufacturing Large-scale High-yield Hybrid Superconducting-semiconducting On-chip Cryogenic Switches Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present our latest progress in the development of quantum integrated circuits based on hybrid superconductor-semiconductor two-dimensional electron gas in InGaAs heterostructure. |
Kaveh Delfanazari ; Jiahui Li ; Peng Ma ; Reuben Puddy ; Yusheng Xiong ; Ian Farrer ; Sachio Komori ; Jason Robinson ; David Ritchie ; Michael Kelly ; Hannah Joyce ; Charles Smith; |
| 579 | Enhancement of The Coupling Between A Microwave Photon and A Color-center Spin Transition Via A Magnon Mode Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe an approach that dramatically enhances the effective coupling between microwave photons and CCS. |
Tharnier Puel ; Michael Flatté; |
| 580 | Surface Phonon Interference in Hybrid Quantum Acoustic Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we report on the spectral analysis of a simple experimental system comprised of a SAW resonator galvanically coupled to a microwave transmission line. |
Pranaya Kishore Rath ; Camryn Undershute ; Joe Kitzman ; Jingyu Zhang ; Johannes Pollanen; |
| 581 | Reservoir Engineered Hybrid Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we will explore quantum energy and correlation transport through a network of ensembles collectively coupled to environments. |
William Munro ; Josephine Dias ; Kae Nemoto; |
| 582 | Hybrid Superconducting Qubit Based on Topological Insulator Junction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a design that enables us to perform systematic characterization of the hybrid device, from DC transport of the S-TI-S junction, to RF spectroscopy, to full circuit QED control and detection of the hybrid qubit. |
Sheng-Wen Huang ; Ramya Suresh ; Botao Du ; Zachary Miles ; Jian Liao ; Leonid Rokhinson ; Yong Chen ; Ruichao Ma; |
| 583 | Measurement of Microwave Loss in Complex Oxide Heterostructures for Hybrid Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we systematically study the microwave loss in epitaxial heterostructures of barium titanate (BTO)-on-silicon (BTO/Si) as a promising platform for piezo-acoustic cavities. |
Ivan Lainez ; Richard Mattish ; Bernardo Langa ; Maggie Marte ; Deepak Sapkota ; Christopher Rouleau ; Jong Keum ; Kasra Sardashti; |
| 584 | Time-domain Coherent Magnon Interference with On-chip Superconducting Hybrid Magnonic Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we develop a superconducting circuit platform, incorporating chip-mounted single-crystal YIG spheres that are mounted in lithographically defined holes on silicon substrates with superconducting resonators, for implementing microwave-mediated distant magnon-magnon interactions [2]. |
Yi Li ; Moojune Song ; Tomas Polakovic ; Thomas Cecil ; John Pearson ; Ralu Divan ; Wai-Kwong Kwok ; Ulrich Welp ; Axel Hoffmann ; Kab-Jin Kim ; Valentine Novosad; |
| 585 | Oral: Towards Topological Magnons for Hybrid Magnonic Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we study the implementation of topological magnon modes for the entanglement of NV center qubits, paying special attention to the effect of differing edge state terminations. |
Jeff Leiberton ; Denis Candido; |
| 586 | Small-mode-volume Surface-acoustic-wave Resonators with Focused Gaussian Beam Modes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we fabricated the focused SAW resonators with electrodes of various curvatures and lengths to clarify the correspondence between the resonator designs and the resonance modes. |
Ryo Sasaki ; Rekishu Yamazaki ; Ryusuke Hisatomi ; Yuya Yamaguchi ; Atsushi Noguchi ; Yasunobu Nakamura; |
| 587 | Decoherence of Surface Phonons in The Weak Dispersive Regime of Circuit Quantum Acoustodynamics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we describe an experiment in which the electro-mechanical response of a surface acoustic wave (SAW) device enables the realization of an open cQAD system. |
Camryn Undershute ; Joe Kitzman ; Pranaya Kishore Rath ; Johannes Pollanen; |
| 588 | Microwave Photon-number Multiplication Using Inelastic Cooper-pair Tunneling in Josephson Junctions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we improve our implementation of a linear microwave photon-multiplication scheme, based on inelastic tunneling of Cooper pairs through a voltage-biased Josephson junction, which multiplies the photon number by an integer factor [1]. |
Nicolas Bourlet ; Romain Albert ; Joel Griesmar ; Ulrich Martel ; Youcef Bioud ; Alexandre Rogalle ; Naveen Nehra ; Max Hofheinz; |
| 589 | Hybrid Devices with Sn on InAs Nanowires: Superconducting Properties and Application in Parametric Amplification Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: With InAs as the nanowire material, we report Sn to induce robust superconducting properties such as hard and substantial superconducting gap as well as large gate tuneable switching currents surviving in high magnetic fields. |
Amritesh Sharma ; Amrita Purkayastha ; Maxime Tomasian ; An-Hsi Chen ; Connor Dempsey ; Susheng Tan ; Moira Hocevar ; Chris Palmstrom ; Michael Hatridge ; Sergey Frolov; |
| 590 | Parametric Amplifier for W-band Frequency Range Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present our effort on developing parametric amplifier for mm-wave frequency using superconducting circuits. |
Debopam Datta ; Arto Hujanen ; Visa Vesterinen ; Henri Ailas ; Joonas Govenius ; Pekka Pursula; |
| 591 | Quantum-limited Amplification Based on Josephon Photonics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk I will show that Josephson junctions can also yield useful quantum devices when operated in the finite voltage state. |
Max Hofheinz; |
| 592 | Tomography of Thermal Microwave Photons with A Cryogenic Particle Detector Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We aim to observe photon bunching and n(n+1) photon number variance in agreement with the Bose-Einstein distribution. |
Aarne Keränen ; Qi-Ming Chen ; Mikko Möttönen; |
| 593 | Frequency-conversion Loss in Three-wave-mixing Traveling-wave Parametric Amplifiers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that low-frequency noise of high-enough amplitude can lead to frequency-conversion of weak probe-tones and easily dominate over other loss sources. |
Christoph Kissling ; Victor Gaydamachenko ; Marat Khabipov ; Alexander Zorin ; Lukas Grünhaupt; |
| 594 | A Dual-Band Quantum Superconducting Amplifiers for Axion-Like Dark Matter Particle Search Experiments Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation, we shall present in details the concept and design of the dual-band TWPA, as well as some preliminary measurement results characterising the devices. |
Nikita Klimovich ; Javier Navarro Montilla ; Ryan Stephenson ; Farzad Faramarzi ; Peter Day ; Boon-Kok Tan; |
| 595 | Design and Fabrication of Millimeter-wave Josephson Travelling Wave Parametric Amplifiers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will present our exploration of various design parameters for operating a JTWPA in the millimeter-wave regime, which in many cases is very different compared to the microwave counterpart e.g., the power coupling strategy. |
Javier Navarro Montilla ; Eduard F.C. Driessen ; Arnaud Barbier ; Boon Kok Tan; |
| 596 | Non-linear Amplification in Inelastic Cooper-pair Tunneling Amplifiers (ICTA) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The dominant process can easily be selected by tuning the DC bias. Here we discuss how these processes with nonlinear gain characteristics could be used advantageously in state discrimination. |
Alexandre Paquette ; Ulrich Martel ; Naveen Nehra ; Nicolas Bourlet ; Youcef Bioud ; Mona Arabmohammadi ; Amir Hosein Esmaeili ; Alexandre Rogalle ; Baptiste Monge ; Max Hofheinz; |
| 597 | Graphene-based Josephson Parametric Amplifiers for Highly Sensitive Bolometry Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will discuss the bolometric response of our graphene JPA device. |
Joydip Sarkar ; Krishnendu Maji ; Abhishek Sunamudi ; Heena Agarwal ; Meghan Patankar ; Kenji Watanabe ; Takashi Taniguchi ; Mandar Deshmukh; |
| 598 | Fabrication of Vacuum-gap Microstrip Structuresfor Impedance Matching Traveling-wave Parametric Amplifiers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: One of these challenges is to provide enough capacitance over the length of a TWPA to compensate for the nonlinear inductance used for amplification, without introducing extensive noise from dielectric losses. In this work we present a novel fabrication process for vacuum-gap microstrips where the ground plane is supported above the central conductor in a free-standing tunnel-like structure. |
Christian Schlager ; Romain Albert ; Gerhard Kirchmair; |
| 599 | Title: Taming Quantum Noise in Qubits and Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk I will discuss our recent works which show that the ability to reliably process quantum information crucially depends on the structure of noise which is not simply captured by the probability of an error. |
Shruti Puri; |
| 600 | Superconducting Dual Rail Cavity Qubits and Error Correction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: I will present a new architecture for bosonic error correction (https://doi.org/10.1073/pnas.2221736120) which adapts and extends the well known “dual-rail” encoding, where a single photon can be superposed between two distinguishable microwave cavity modes. |
Robert Schoelkopf; |
| 601 | High-fidelity Gates with Mid-circuit Erasure Conversion in A Metastable Neutral Atom Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Importantly, we show that 56% of single-qubit gate errors and 33% of two-qubit gate errors are converted into erasure through fast mid-circuit detection of ground state atoms. |
Pai Peng ; Shuo Ma ; Genyue Liu ; Bichen Zhang ; Sven Jandura ; Jahan Claes ; Alex Burgers ; Guido Pupillo ; Shruti Puri ; Jeff Thompson; |
| 602 | Spectral and Time Multiplexed Continuous Variable Quantum Information Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In the continuous variable approach, where the information is encoded in the quadratures of bosonic fields, we exploit the deterministic generation of scalable entangled states, that requires the generation of a scalable number of squeezed modes. |
Valentina Parigi; |
| 603 | Linear-optical Quantum Computing with High-probability State Generation and Arbitrary Connectivity Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present Xanadu’s proposal for a scalable and fault-tolerant photonic quantum computer along with relevant new results. |
Ilan Tzitrin; |
| 604 | Characterization of Group-IV Color Center Hyperfine Coupling for Brokered Entanglement Protocols Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present first-principles and experimental results characterising the hyperfine properties of the group-IV color centers. |
Isaac Harris ; Cathryn Michaels ; Kevin Chen ; Ryan Parker ; Michael Titze ; Jesus Arjona Martinez ; Madison Sutula ; Ian Christen ; Alexander Stramma ; William Roth ; Carola Purser ; Martin Hayhurst Appel ; Chao Li ; Matthew Trusheim ; Nicola Palmer ; Matthew Markham ; Edward Bielejec ; Mete Atatüre ; Dirk Englund; |
| 605 | A Robust Quantum Memory for Quantum Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we introduce a new type of data qubit for quantum networks, consisting of a nearest-neighbours pair of C13 nuclear spins [3] in a diamond lattice. |
Nicolas Demetriou ; Benjamin van Ommen ; Mariagrazia Iuliano ; Alejandro Montblanch ; Julius Fischer ; Ronald Hanson ; Tim Hugo Taminiau; |
| 606 | High-fidelity Quantum Gates on Spin-qubit Registers in Diamond Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we use gate set tomography [2] to characterize and optimize gates on electron and nuclear spin-qubits of a nitrogen-vacancy (NV) center in diamond. |
Margriet van Riggelen ; Hans Bartling ; Jiwon Yun ; Benjamin van Ommen ; Kai-Niklas Schymik ; Luc Enthoven ; Masoud Babaie ; Fabio Sebastiano ; Tim Taminiau; |
| 607 | Precise Entanglement Generation in Spin Registers Coupled to Defects Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present a general description of the electron-nuclear spin entanglement from the perspective of the entangling gate design. |
Evangelia Takou; |
| 608 | Decoherence-protected Two Qubit Quantum Gates for Spin Sensing and Control Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we develop a novel, generalized DDRF framework, incorporating the effect of frequency-detuned RF pulses. |
Hendrik Benjamin van Ommen ; Guido van de Stolpe ; Nicolas Demetriou ; Thomas Fortuin ; Jiwon Yun ; Damian Kwiatkowski ; Tim Hugo Taminiau; |
| 609 | Quantum Instrumentation Control Kit Defect Arbitrary Waveform Generator (QICK-DAWG): Open-source FPGA Control for Nitrogen-Vacancy Quantum Sensing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present a software and firmware extension to QICK, Defect Arbitrary Waveform Generator (QICK-DAWG),an open-source package that supports quantum control of nitrogen-vacancy defects in diamond and other quantum defects using RFSoC FPGAs. |
Emmeline Riendeau ; Luca Basso ; Rong Cong ; Mohammad Abdullah Sadi ; Jacob Henshaw ; Aulden Jones ; Jasmine Mah ; Sho Uemura ; Michael Lilly ; Andrew Mounce; |
| 610 | Coherent Electric Field Control of Orbital State of A Neutral Nitrogen-Vacancy Center Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: The coherent control of the orbital state is crucial for realizing the extremely-low power manipulation of the color centers in diamonds. Herein, a neutrally-charged … |
Hodaka Kurokawa ; Keidai Wakamatsu ; Shintaro Nakazato ; Makino Toshiharu ; Hiromitsu Kato ; Yuhei Sekiguchi ; Hideo Kosaka; |
| 611 | Imaging of Nonlinear Spin Waves in Yttrium Iron Garnet Using Nitrogen Vacancy Spin Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Due to the potential of YIG spin waves to be used in magnetic scattering and spintronic applications, it is of interest to further understand magnon-magnon interactions at high excitation powers [3]. In this experiment, we use NV magnetic sensing to image four-magnon interaction processes in YIG under various excitation parameters. |
Shantam Ravan ; Johannes Cremer ; Daniel Fernandez ; Ilya Esterlis ; Eugene Demler ; Ronald Walsworth ; Amir Yacoby; |
| 612 | Hybrid System Based on Nitrogen-Vacancy (NV) Center and Spin Wave Device Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a hybrid system that offers a promising alternative to semiconductors and MEMS resonators. |
Jiahao WU ; Jiacheng Liu ; ZHEYU REN ; Man Yin Leung ; Wai Kuen Leung ; Kin On Ho ; Xiangrong Wang ; QIMING SHAO ; Sen Yang; |
| 613 | Stroboscopic X-ray Diffraction Microscopy of Dynamic Strain in Diamond Thin-film Bulk Acoustic Resonators for Quantum Control of Nitrogen Vacancy Centers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our results demonstrate a unique technique for directly imaging AC lattice strain in nanomechanical structures and provide a direct measurement of a fundamental constant for the NV center defect spin Hamiltonian. |
Anthony D’Addario ; Johnathan Kuan ; Noah Opondo ; Ozan Erturk ; Tao Zhou ; Sunil Bhave ; Martin Holt ; Gregory Fuchs; |
| 614 | Engineering Phonon-Qubit Interactions Using Phononic Crystals Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we demonstrate an alternative approach that relies on engineering phononic density of states, drawing inspiration from photonic bandgap structures that have been used to control the spontaneous emission of quantum emitters. |
Benjamin Pingault ; Kazuhiro Kuruma ; Cleaven Chia ; Michael Haas ; Graham Joe ; Daniel Assumpcao ; Sophie Weiyi Ding ; Chang Jin ; CJ Xin ; Matthew Yeh ; Neil Sinclair ; Marko Loncar; |
| 615 | Detecting and Manipulating Individual Carbon Vacancies in Diamond with Atomic Antennas Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our study reveals the capacity of atomic antennas for efficient optical energy concentration in solids, with broad applications in spectroscopy, sensing, and quantum science. |
Zixi Li ; Xinghan Guo ; Yu Jin ; Francesco Andreoli ; Anil Bilgin ; David Awschalom ; Nazar Delegan ; Joseph Heremans ; Darrick Chang ; Giulia Galli ; Alexander High; |
| 616 | The Dielectric Dipper: Experimental Comparisons of Common Dielectric Substrates in Isolation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We have developed a differential probe of bulk dielectric loss with a sensitivity on the order of 10 -8. |
Alexander Read ; Benjamin Chapman ; Luigi Frunzio ; Robert Schoelkopf; |
| 617 | Extracting Contributions to Qubit Loss from Superconducting Microwave Resonators. Part 1 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present data from devices that involve systematic variation of geometry in order to modify the participation ratios of lossy interfaces and determine the dominant contributors to energy relaxation. |
Shravan Patel ; Elam Blackwell ; Spencer Weeden ; David Harrison ; Francisco Schlenker ; Matthew Snyder ; Gabriel Spahn ; Abigail Shearrow ; JT Paustian ; K Okubo ; B.L.T Plourde ; Robert McDermott; |
| 618 | Extracting Contributions to Qubit Loss from Superconducting Microwave Resonators. Part 2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we explore the dependence of interface losses on the details of device fabrication process. |
Elam Blackwell ; Shravan Patel ; Spencer Weeden ; David Harrison ; Francisco Schlenker ; Matthew Snyder ; Gabriel Spahn ; Abigail Shearrow ; JT Paustian ; K Okubo ; B.L.T Plourde ; Robert McDermott; |
| 619 | Origin of Bulk Two-level System Loss in Superconducting Circuits on Silicon: Part I Experiment Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we present the first microscopic identification of a TLS bath for superconducting circuits based on defects in bulk silicon. |
Zihuai Zhang ; Kadircan Godeneli ; Srujan Meesala ; Alp Sipahigil; |
| 620 | Origin of Bulk Two-level System Loss in Superconducting Circuits on Silicon: Part II Theory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we present the first microscopic identification of a TLS bath for superconducting circuits based on defects in bulk silicon. |
Kadircan Godeneli ; Zihuai Zhang ; Srujan Meesala ; Alp Sipahigil; |
| 621 | Annealing Reduces Silicon Nitride Microwave-frequency Two-level Systems Loss Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report measurements of the dielectric loss of stoichiometric Si 3N 4 with superconducting circuits, and explain the material’s behavior with the resonant and relaxation components of the two-level systems (TLS) model. |
Kazemi Adachi ; Sarang Mittal ; Alec Emser ; Cyril Metzger ; Nicholas Frattini ; Maxwell Urmey ; Sheng-Xiang Lin ; Luca Talamo ; Sarah Dickson ; David Carlson ; Scott Papp ; Cindy Regal ; Konrad Lehnert; |
| 622 | Probing Defect Densities at The Edges and Inside Josephson Junctions of Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we investigate whether defects appear predominantly at the edges or deep within the amorphous tunnel barrier of a junction. |
Alexander Bilmes; |
| 623 | Intermodulation Spectroscopy of The Nonlinear Response Due to Two-level Systems in Superconducting Resonators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present intermodulation spectroscopy results and discuss progress towards reconstructing the TLS-induced nonlinear response using different reconstruction algorithms. |
Gustav Andersson ; Janka Biznárová ; Juan Carlos Rivera Hernández ; Daniel Forchheimer ; Jonas Bylander ; David Haviland; |
| 624 | Towards Individual TLS Detection By Scanning Gate Microscopy Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will present a novel technique to detect, measure and image individual TLS defects in operational superconducting quantum circuits. |
Riju Banerjee ; Marius Hegedus ; Andrew Hutcheson ; Sebastian Graaf; |
| 625 | Dynamical Disorder of Two-level Defects in Quantum Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we present new experimental evidence for the existence of two types of TLSs, interacting weakly and strongly with the strain. |
Moshe Schechter; |
| 626 | Spectroscopic Study of Two-Level System Defects in Transmon Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we have investigated TLS defects in planar transmon qubits. |
Christopher Förbom ; Elsa Mannila ; Mikael Kervinen ; Visa Vesterinen ; Jorden Senior ; Debopam Datta ; Patrik Eskelinen ; Joonas Govenius; |
| 627 | More Is Better – High Throughput of Qubit Measurements for Materials Study Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Despite great advances and improvements in the performance of superconducting qubits through changes in device design and geometry, significant improvements in materials remain … |
Ella Lachman ; Eric Bhada ; Mehrnoosh Vahidpour ; Daniel Setiawan ; David Snow ; Brian McVey ; Mike Espitia ; Cameron Kopas ; Josh Mutus; |
| 628 | Low-power Pound-Drever-Hall Measurement of Superconductiong Resonators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we report on progress towards a low power implementation of PDH with direct, independent detection of the carrier and sidebands, for the goal of faster superconductiong resonator measurements. |
John Pitten ; Jim Phillips ; Josh Mutus ; Corey Rae McRae; |
| 629 | Displaced Frame Approach for Simulating High-Power Dispersive Readout Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The proposed method enables one to access the high-power dispersive readout in the two-level system and the transmon with moderate numerical resources. |
Shimpei Goto ; Kazuki Koshino; |
| 630 | Theory of Measurement-induced Transitions in The Transmon Qubit, Part 1 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we present a unified theoretical picture of measurement-induced transitions in the transmon qubit. |
Marie Frédérique Dumas ; Marie Frederique Dumas (*) ; Groleau-Paré ; Benjamin (*) ; Cristóbal Lledó ; Alexander McDonald ; Manuel Munoz Arias ; Benjamin d’Anjou ; Alexandre Blais; |
| 631 | Theory of Measurement-induced Transitions in The Transmon Qubit, Part 2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we present a unified theoretical picture of measurement-induced transitions in the transmon qubit. |
Benjamin Groleau-Paré ; Groleau-Paré ; Benjamin (*) ; Marie Frederique Dumas (*) ; Cristóbal Lledó ; Alexander McDonald ; Manuel Munoz Arias ; Benjamin d’Anjou ; Alexandre Blais; |
| 632 | Anomalous Dynamics of Superconducting Qubits Coupled to Strongly Driven Readout Resonators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Interestingly, these anomalous dynamics cannot be explained by the Purcell decay or other conventional models of qubit dissipation. In this talk, we discuss several mechanisms for these drive-induced anomalous dynamics, from coherent multi-level or multi-photon transitions to incoherent jumps induced by the resonator photons. |
Wentao Fan ; Boris Mesits ; Hakan Tureci ; Michael Hatridge; |
| 633 | Investigating Readout-induced State Transitions in A Multimode Josephson Circuit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present experimental results and preliminary theoretical understanding of the readout-induced state transitions of both types. |
Wei Dai ; Sumeru Hazra ; Xu Xiao ; Jayameenakshi Venkatraman ; Zhixin Wang ; Pranav Parakh ; Daniel Weiss ; Luigi Frunzio ; Michel Devoret; |
| 634 | The Effects of Readout Photons on The Fluxonium Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We observe an overall increase in the qubit relaxation rate with the number of readout photons and observe photon-number-dependent changes in the fluxonium transition rate. |
Aayam Bista ; Matthew Thibodeau ; Kaicheung Chow ; Bryan Clark ; Angela Kou; |
| 635 | Fast-switching Coupler for Measuring The Interaction Dynamics of A System Formed of A Flux Qubit Coupled to A Waveguide in The Ultra-strong Coupling Regime Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present results of a theoretical analysis of the system, that includes the role of higher levels of the qubit circuit and a realistic model for qubit measurement. |
Noah Janzen ; Lucas Hak ; Xi Dai ; Elena Cornick ; Adam Teixidó-Bonfill ; Eduardo Martín-Martínez ; Adrian Lupascu; |
| 636 | Strongly-driven Transmon As An Incoherent Noise Source Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we show that a coherently driven transmon can act as a source of incoherent noise driving another circuit element coupled to it. |
Linda GREGGIO ; Rémi Robin ; Alexandru Petrescu ; Mazyar Mirrahimi; |
| 637 | High Fidelity Gates in A Transmon Using Bath Engineering for Passive Leakage Reset Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our work demonstrates the possibility of passive leakage reduction as a useful tool for fault-tolerant quantum computation. |
Alexander McDonald ; Ted Thorbeck ; Olivia Lanes ; Baptiste Royer ; Luke Govia ; Alexandre Blais; |
| 638 | Balanced Coupling in Superconducting Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate the RWA in the context of electrical resonant circuits. |
Daniel Sank ; Sergei Isakov ; Mostafa Khezri; |
| 639 | High-frequency Suppression of Inductive Coupling Between Flux Qubit and Transmission Line Resonator Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We perform theoretical calculations to investigate the naturally occurring high-frequency cutoff in a circuit comprising a flux qubit coupled inductively to a transmission line resonator (TLR). |
Sahel Ashhab ; Ziqiao Ao ; Fumiki Yoshihara ; Adrian Lupascu ; Kouichi Semba; |
| 640 | Capacitive Coupling of Persistent Current Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: For instances, we will show cricuits parameters that allow to obtain an ultra-strong capacitive coupling between photons and qubit or the design of a long lived qutrit state coupled to a continuum of excitations. |
manuel pino ; Juan Jose Garcia-Ripoll ; María Hita-Pérez ; Gabriel Jaumà; |
| 641 | Nonlinear Space-Time Modulation for Exquisite Wavecrafting in Superconducting Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present a space-time-varying cQED system and showcase the exceptional functionalities and wave-tailoring properties that are inherent to structures driven by nonlinearity-based space-time modulation, especially in controlling superconducting transmons. |
Sajjad Taravati ; Mustafa Bakr; |
| 642 | Exact Nonlinear Response Theory for Lossy Superconducting Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a concept of time-averaged observables, inspired by experiment, and provide an explicit formula for producing their quasiprobability distribution. |
Vasilii Vadimov ; Meng Xu ; Malte Krug ; Juergen Stockburger ; Joachim Ankerhold ; Mikko Möttönen; |
| 643 | Algorithms for Quantum Computing, Communication Networks, and Metrology: A Near-term Perspective Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In other words, what is the best possible performance that can be achieved using today’s noisy, imperfect quantum devices? In this talk, I present some of the progress that has been made on answering this question. |
Sumeet Khatri; |
| 644 | Near-term Algorithms on A Trapped-ion Quantum Computer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: I will detail how H2’s unique capabilities result in strong performance on a variety of near-term system-level algorithmic benchmarks, such as random circuit sampling, Hamiltonian simulation, and QAOA. |
Matthew DeCross; |
| 645 | NISQ Computing The Climate Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate the utility of Noisy Intermediate Scale Quantum (NISQ) devices as an alternative to classical computation. |
Yash Lokare ; Lucas Chan ; Brenda Rubenstein ; John Marston; |
| 646 | Qubit Efficient Quantum Algorithms for The Vehicle Routing Problem on NISQ Processors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we explore the use of a previously-introduced qubit encoding scheme to reduce the number of qubits, to evaluate the effectiveness of NISQ devices when applied to industry relevant optimization problems. |
Dimitris Angelakis; |
| 647 | Extracting and Evaluating Performance of NISQ Optimization Experiments: Beyond Angle-parameter Setting Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will discuss insights gained from the DARPA ONISQ program, where NASA, USRA, and Rigetti Computing employed an array of techniques to combat noise while aiming to solve non-trivial binary optimization problems. |
Davide Venturelli; |
| 648 | Variational Quantum Optimization with Qubit-efficient Encoding of Problems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We quantify the performance of variational quantum circuits in solving Ising spin glass problems up to 1000 variables, and investigate the tradeoff between algorithm performance and the qubit-efficiency of the encoding. |
Bhuvanesh Sundar ; Maxime Dupont ; Mark Hodson ; Stephen Jeffrey ; Filip Maciejewski ; Bram Evert ; Stuart Hadfield ; M. Sohaib Alam ; Zhihui Wang ; Shon Grabbe ; P. Aaron Lott ; Eleanor Reiffel ; Davide Venturelli ; Matthew Reagor; |
| 649 | Design and Execution of Quantum Circuits Using Tens of Superconducting Qubits and Thousands of Gates for Dense Ising Optimization Problems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report performance significantly better than using a random guess oracle for circuits involving up to ~5,000 two-qubit and ~5,000 one-qubit native gates. |
Filip Maciejewski ; Stuart Hadfield ; Davide Venturelli ; Benjamin Hall ; Mark Hodson ; Maxime Dupont ; Bram Evert ; James Sud ; Sohaib Alam ; Zhihui Wang ; Stephen Jeffrey ; Bhuvanesh Sundar ; P. Aaron Lott ; Shon Grabbe ; Eleanor Rieffel ; Matthew Reagor ; Matthew Reagor; |
| 650 | Efficient Implementation of The Fermionic Schrodinger Equation with Adiabatic Quantum Computation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In Chang, McElvain, Rrapaj, Wu, PRX Quantum 3(2), 020356, the authors present a solution for distinguishable particles. |
Kenneth McElvain; |
| 651 | Incompressible Flow Simulation Via A Hybrid Quantum-classical Approach and Variational Algorithm Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present work on a hybrid approach to solving the nonlinear incompressible Navier-Stokes equations. |
Zhixin Song ; Bryan Gard ; Spencer Bryngelson; |
| 652 | Energy-filtered Random-phase States As Microcanonical Thermal Pure Quantum States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a method to calculate finite-temperature properties of many-body systems for microcanonical ensembles, which may find a potential application of near-term quantum computers. |
Kazuhiro Seki ; Seiji Yunoki; |
| 653 | A Graphical Language for Computer-aided Design and Synthesis of Quantum Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we present an interface for the graphical automated design of quantum algorithms inspired by Electronic Design Automation (EDA) tools, which have been the workhorse of digital logic design for decades. |
Gal Winer ; lior Gazit; |
| 654 | Resource Estimation of Fault Tolerant Algorithms Using Qᴜᴀʟᴛʀᴀɴ Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Quantum algorithm researchers are writing long (50-100 page) papers describing quantum algorithms and performing resource estimation, using pages and pages of text. |
Tanuj Khattar; |
| 655 | Improved Phase Factor Determination in Quantum Signal Processing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Quantum Signal Processing (QSP) provides a framework for implementing polynomial functions of non-unitary matrices on quantum computers. |
Bjorn Berntson ; Christoph Sünderhauf; |
| 656 | Qubit-controlled Directional Edge States in Waveguide QED Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose an in-situ tunable chiral quantum system, composed of a quantum emitter coupled to a waveguide based on the Rice-Mele model (where we alternate both the on-site potentials and tunnel couplings between sites in the waveguide array). |
Chun-Ching Chiu ; Arkady Fedorov ; Pradeepkumar Nandakumar ; Prasanna Pakkiam ; Mikhail Pletyukhov; |
| 657 | Driven-dissipative Preparation of Remote Entanglement in Chiral Waveguide Quantum Electrodynamics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: It has been shown that coupling more qubits in a chain configuration to each pair generates a steady state consisting of independent Bell pairs of remotely entangled qubits [2]. We study this system under conditions achievable with superconducting circuits and find that in addition to offering a more experimentally viable route toward stabilized remote entanglement, an additional pair of qubits may be more entangled than the first pair. |
Abdullah Irfan ; Andrew Lingenfelter ; Mingxing Yao ; Aashish Clerk ; Wolfgang Pfaff; |
| 658 | Autonomous Stabilization with Programmable Stabilized State Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we enhance the stabilization capability to a continuous manifold of states with programmable stabilized state selection BT{from} multiple continuous tuning parameters. |
Ziqian Li ; Tanay Roy ; Yao Lu ; Eliot Kapit ; David Schuster; |
| 659 | Leveraging Dissipation for Entangling Superconducting Qubits Directly Coupled to A 1D Waveguide Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we discuss the hardware requirements of a scheme for stabilizing remote entanglement between a pair of superconducting (transmon) qubits linked by a microwave waveguide on a chip, and present our results demonstrating progress towards a physical implementation. |
Parth Shah ; Frank Yang ; Chaitali Joshi ; Mohammad Mirhosseini; |
| 660 | Globally Stabilizing Two-qubit Entanglement with Dynamically Decoupled Active Feedback Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose and analyze a protocol for stabilizing a maximally entangled state of two noninteracting qubits using active state-dependent feedback from a continuous two-qubit half-parity measurement. |
Sacha Greenfield ; Leigh Martin ; Felix Motzoi ; Birgitta Whaley ; Justin Dressel ; Eli Levenson-Falk; |
| 661 | Non-Hermitian Topology and Directional Amplification Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will show that non-trivial, non-Hermitian topology is in one-to-one correspondence with the phenomenon of directional amplification [1-2] in one-dimensional bosonic systems, e.g., cavity arrays. |
Clara Wanjura ; Andreas Nunnenkamp ; Matteo Brunelli; |
| 662 | Progress Toward Coherent Photon Arithmetic on A Superconducting Bosonic Mode Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we make progress toward experimentally realizing the proposal on a superconducting processor. |
William Banner ; Christopher McNally ; Max Hays ; Alen Senanian ; Andy Schang ; Michael Gingras ; Bethany Niedzielski ; Hannah Stickler ; Jonilyn Yoder ; Mollie Schwartz ; Kyle Serniak ; Simon Gustavsson ; Jeffrey Grover ; Peter McMahon ; Terry Orlando ; William Oliver; |
| 663 | Uncovering Measurement-induced Entanglement Via Directional Adaptive Dynamics and Incomplete Information Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we construct a general recipe for mimicking the conditional entanglement dynamics of a monitored system in a corresponding measurement-free dissipative system involving directional interactions between the original system and a set of auxiliary register modes. |
Yuxin Wang ; Alireza Seif ; Aashish Clerk; |
| 664 | Quantum Reservoir Probing of Information Propagation and Scrambling Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, by extending the idea of quantum reservoir computing, we propose a new framework, quantum reservoir probing (QRP), that allows for direct tracing of the dynamics of information propagation in quantum systems [2]. |
Kaito Kobayashi ; Yukitoshi Motome; |
| 665 | Using Three-wave Mixing to Achieve Ultra-narrow Masing with Superconducting Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will demonstrate how we couple a single transmon qubit to a high-Q superconducting cavity to create a Josephson junction-based micro-maser. |
Maria Mucci ; Chun-Che Wang ; Israa Yusuf ; Chenxu Liu ; David Pekker ; Michael Hatridge; |
| 666 | On-demand Driven Dissipation for Cavity Reset and Cooling on A Superconducting Chip Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we demonstrate how a cold source of dissipation, usually thought of as a source of decoherence, can be used as a resource to eliminate excess entropy from a system that has unwanted excitations. |
Vivek Maurya ; Haimeng Zhang ; Daria Kowsari ; Andre Kuo ; Darian Hartsell ; Clark Miyamoto ; Jocelyn Liu ; Sadman Ahmed Shanto ; Azarin Zarassi ; Kater Murch ; Daniel Lidar ; Eli Levenson-Falk; |
| 667 | Experimental Investigation of Geometric Quantum Speed Limits in An Open Quantum System Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We used two distinguishability measures of quantum states to assess the speed of the qubit evolution: the quantum Fisher information (QFI) and Wigner-Yanase skew information (WY). |
Frederico Brito ; Diego Paiva Pires ; Eduardo deAzevedo ; Diogo Soares-Pinto ; Jefferson Filgueiras; |
| 668 | Recent Progress in Quantum Error Mitigation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I am going to give a quick introduction and overview of quantum error mitigation to people who are unfamiliar with the field. |
Zhenyu Cai; |
| 669 | Impact of Error Mitigation and Error Detection on Noise-induced Barren Plateau Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: A natural inquiry that arises is whether EM and ED can alleviate the NIBP issue. In this project, we assess the impact of various EM and ED methods on QAOA and report its approximation ratio in relation to the increase in noise level (number of layers in the circuit). |
Siyuan Niu ; Dawei Zhong ; Bert de Jong; |
| 670 | Cascaded Variational Quantum Eigensolver Calculations of Molecular and Ionic Compounds Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present results of many-electron ground-state calculations of molecular and ionic compounds obtained using the cascaded variational quantum eigensolver (CVQE) algorithm. |
Daniel Gunlycke ; John Stenger ; Ananth Kaushik ; C Stephen Hellberg; |
| 671 | Error Analysis for The Estimated Energy from A [[4,2,2]] Encoded Variational Quantum Eigensolver Ansatz Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Application benchmarks that run on noisy intermediate scale quantum computing (NISQ) devices require techniques for detecting and mitigating errors to assess accuracy and performance. Quantum error detection codes provide a framework in which to encode these computations and track the presence of errors, but the subsequent logical error rate depends on the application circuit as well as the underlying hardware noise. |
Meenambika Gowrishankar ; Daniel Claudino ; Jerimiah Wright ; Travis Humble; |
| 672 | Error Mitigation, Optimization, and Extrapolation on A Trapped Ion Testbed Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study ZNE in the context of the Variational Quantum Eigensolver (VQE), specifically using VQE to solve the electronic structure problem for HeH+. |
Oliver Maupin ; Ashlyn Burch ; Christopher Yale ; Brandon Ruzic ; Antonio Russo ; Daniel Lobser ; Melissa Revelle ; Matthew Chow ; Susan Clark ; Andrew Landahl ; Peter Love; |
| 673 | Quantum Computer Simulation of Near-surface Oxygen Vacancies in Α-Al2O3 (0001) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study the technologically relevant α-Al 2O 3 (0001) surface, which is known to host applications such as catalysis, and naturally occurring processes such as corrosion. Near-surface oxygen vacancies are critical to describe these processes, and in this talk we provide an in-depth analysis of the vacancy defects in α-Al 2O 3 (0001) surface with density functional theory and quantum computer simulations. |
Vijaya Begum-Hudde ; Yi-Ting Lee ; Barbara Jones ; Andre Schleife; |
| 674 | Demonstrating Quantum Computation for Quasiparticle Band Structures Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In order to realize calculations with the current noisy intermediate-scale quantum devices, we have applied a qubit reduction method and error mitigation techniques such as readout error mitigation and zero noise extrapolation. |
Hokuto Iwakiri ; Takahiro Ohgoe ; Masaya Kohda ; Kazuhide Ichikawa ; Yuya Nakagawa ; Hubert Valencia ; Sho Koh; |
| 675 | Qubit-Efficient Variational Quantum Optimization for Matching Problems with Quadratic Constraints Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we introduce a qubit-efficient problem encoding and a novel cost function that aims to push the limits of solving matching problems with quadratic constraints on IonQ quantum computers. |
Ananth Kaushik ; Guillermo Aboumrad; |
| 676 | Enabling Hybrid Algorithms on Utility-Era Devices Via Error Suppression Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that a deterministic error suppression workflow, with no overhead, improves the performance of hybrid algorithms on currently available quantum hardware by addressing both the quality of implementation of individual circuits and the effectiveness of the classical optimization loop. In this talk, we review the different parts of our workflow and demonstrate its effectiveness via the implementation of QAOA on real devices. |
Pranav Mundada ; Yulun Wang ; Yuval Baum ; Natasha Sachdeva ; Hank Greenburg; |
| 677 | Quantifying The Role of Correlated Noise in The Quantum Approximate Optimization Algorithm Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we investigate the impact of correlated noise on the QAOA variant of Grover’s search using the filter function formalism. |
William Watkins ; Gregory Quiroz; |
| 678 | Scaling from Utility to Advantage for The Transverse-field Ising Model with Software Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Using techniques like Dynamical decoupling, Zero-Noise extrapolation, optimized decomposition, Echoed Cross-Resonance, Hidden Inverses, Equivalent Circuit Averaging and Stabilizer slicing we show how quantum software can scale by running physical TFIM on noisy quantum computers, turning the noisy quantum computers into error corrected quantum computers and running logical versions of TFIM on the same devices. |
Victory Omole; |
| 679 | A Critical Limitation of Quantum Imaginary Time Evolution-like Algorithms in The Noisy Quantum Hardware Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Specifically, we find the upper bounds on how the quantum algorithmic error scales with the probability of errors in quantum hardware. |
Thi Ha Kyaw ; Gaurav Saxena ; Ahmed Shalabi; |
| 680 | Quantum Speedup on Limited Hamming Weight Simon’s Problem Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we demonstrate an algorithmic speedup for Simon’s problem for oracles with Hamming weight (HW) up to 8 using the number-of-oracle-queries-to-solution (NTS) metric, which scales with problem size. |
Phattharaporn Singkanipa ; Victor Kasatkin ; Zeyuan Zhou ; Gregory Quiroz ; Daniel Lidar; |
| 681 | Qibo: An Open-source Hybrid Quantum Operating System Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present Qibolab, an open-source software library for quantum hardware control integrated with the Qibo quantum computing middleware framework. |
Stefano Carrazza; |
| 682 | Low-level Programming of Quantum Computers with Amazon Braket Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will describe how Amazon Braket enables low-level programming of quantum devices. |
Ryan Shaffer; |
| 683 | Fast Qubit Experiments Using Qiskit and Quantify – A Control Stack Designed for Experimentalists Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show how subroutines increase the maximum length of a randomized benchmarking sequence by a factor of 3. |
Daniel Weigand ; Axel Andersson ; Damaz de Jong ; David Vos ; Edgar Reehuis ; Gabor Denes ; Robert Sokolewicz ; Thomas Middelburg ; Victor Gervilla Palomar ; Jules van Oven ; Cornelis Christiaan Bultink; |
| 684 | XACC Quantum Execution Engine: Streamlining Quantum Computing Through QIR Interpretation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The engine’s compatibility with the XACC framework further enhances its utility, providing a hardware-agnostic environment that many researchers may find beneficial. In our presentation, we’ll provide an overview of the QEE’s architecture and its use of QIR. |
Vicente Leyton Ortega ; Daniel Claudino ; Travis Humble ; Elaine Wong ; Afrose Sharmin ; Meenambika Gowrishankar ; Seth Johnson; |
| 685 | Build, Test and Run Quantum-classical Algorithms with Amazon Braket Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we describe how Amazon Braket Hybrid Jobs make the execution of hybrid quantum-classical workloads easier, faster, and more predictable. |
Jean-Christophe Jaskula; |
| 686 | Introduction to The Intel Quantum SDK Version 1.1 Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: The Intel Quantum SDK is a comprehensive platform that enables developers to craft applications on a full-stack system integrated with an LLVM-based industry standard compiler, … |
Xin-Chuan Wu ; Andrew Litteken ; Pradnya Khalate ; Albert Schmitz ; Shavindra Premaratne ; Kevin Rasch ; Drew Risinger ; Shengru Ren ; Jennifer Paykin ; Francis Rose ; Grant Baker ; Beverly Klemme ; Gian Giacomo Guerreschi ; Mohannad Ibrahim ; Jeremie Pope ; NICOLAS SAWAYA ; Roza Kotlyar ; Nathan Foulk ; Anne Matsuura; |
| 687 | High-level Domain-specific Circuit Compilation Using The Functional Language Extension to The Intel® Quantum Software Development Kit (SDK) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To go beyond basic circuit-level descriptions, the Functional Language Extension for Quantum (FLEQ) has been recently added to the Intel Quantum SDK to facilitate higher-level and extensible development of quantum algorithms, with which complex circuits can be built at compile time using a modular functional design. In this talk, we introduce a toy example of a quantum domain-specific language implemented using FLEQ in such a way that no circuit description is required, but rather only domain-specific knowledge of the problem. |
Kevin Rasch ; Albert Schmitz ; Jennifer Paykin ; Andrew Litteken ; Anne Matsuura; |
| 688 | Comprehensive Quantum Computing Simulation with Intel Quantum SDK V1.1 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk I will discuss the capabilities and limitations of each of the simulator backends and provide recommended use cases based on examples. |
Shavindra Premaratne ; Grant Baker ; Gian Giacomo Guerreschi ; Fabian Hernandez ; Mohannad Ibrahim ; Pradnya Khalate ; Beverly Klemme ; Roza Kotlyar ; Nathan Foulk ; Andrew Litteken ; Jennifer Paykin ; Jeremie Pope ; Kevin Rasch ; Shengru Ren ; Francis Rose ; NICOLAS SAWAYA ; Albert Schmitz ; Xin-Chuan Wu ; Drew Risinger ; Samwel Sekwao ; Anne Matsuura; |
| 689 | Performant Quantum-Classical Application Development with CUDA Quantum Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: CUDA Quantum has a user-friendly Python API and we will present results from simulations that leverage the multi-node multi-gpu simulations in quantum chemistry, quantum condensed matter physics, high energy physics, quantum machine learning, computational fluid dynamics at scale. |
Pooja Rao ; Zohim Chandani ; Eric Schweitz ; Bruno Schmitt ; Anthony Santana ; Thien Nguyen ; Ben Howe ; Bettina Heim ; Alex McCaskey; |
| 690 | Maximizing Quantum Computing Capabilities with High-Performance Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present the current progress on the development of QTensor and future directions. |
Yuri Alexeev ; Danylo Lykov; |
| 691 | Modular Software Stacks for Quantum Computing at Scale Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will discuss the current challenges and opportunities in modular systems from the software side. |
Cameron Spence ; Nathan Woollett ; Fabian Zwiehoff ; Mathias Puetz; |
| 692 | Software Stack Requirements for Quantum Computer Testbeds Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we will present the emerging challenges we foresee and the software solutions required to continue to push the bounds of the experiments and workloads that an experimentalist can run on quantum computers. |
Samin Ishtiaq ; Amir Alavi ; AmirReza Safehian ; Jatin Lal ; Nicholas Chen; |
| 693 | Multi-level Scheduling Supports Scalable Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Second, the shared QPU resource should have minimal downtime, i.e. duty cycle should be maximized. Here, we present how our open-source control software framework (LabOne Q) addresses these challenges by introducing quantum job scheduling on multiple levels. |
Taekwan Yoon ; Zhixin Wang ; Chi-Huan Nguyen ; Mohammadali Foroozandeh ; Jan Lienemann ; Tino Wagner ; Moritz Kirste ; Andreas Messner ; Edward Kluender ; Kent Shirer ; Clemens Müller; |
| 694 | Evaluation of Quantum Machines By Combining Gate Expressivity, Entanglement Capability, and Fidelity Metrics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This paper explores and analyzes generic fidelity models that directly compare the performance of two quantum machines for a given algorithm. |
Justin Kalloor ; Costin Iancu ; Ed Younis ; Mathias Weiden ; John Kubiatowicz; |
| 695 | Quantum Error Correction Modeling Using The Intel® Quantum Software Development Kit (SDK) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we provide an example of the use of the full-stack-in-simulation capabilities of the Intel Quantum SDK for this purpose. |
Anne Matsuura ; Albert Schmitz ; Prithviraj Prabhu; |
| 696 | Piezoelectrically Coupling A Traveling-Wave Phononic Cavity to A Transmon Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we describe a circuit quantum acoustodynamics system, consisting of a traveling-wave phononic cavity based on Lithium Niobate on a sapphire substrate coupled with a transmon qubit. |
lintao xiao ; Weiting Wang ; Xinbiao Xu ; Bo Zhang ; Xiaoxuan Pan ; Jiaqi Wang ; Changling Zou ; Luyan Sun; |
| 697 | Exploring Coupling in Molecular Magnet/qubit Bilayers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we deposit V[TCNE]x on top of a thin film of the molecular spin qubit copper phthalocyanine (CuPc) in order to explore spin-magnon coupling. |
Donley Cormode ; Erin Henkhaus ; Nestor Plascencia ; Emmy Freudenrich ; Zoe Phillips ; Thomas Gredig ; Ezekiel Johnston-Halperin; |
| 698 | Interfacing Gottesman-Kitaev-Preskill Qubits to Quantum Memories Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose an interface between quantum memories and GKP qubit states based on a cavity interaction-mediated controlled displacement gate. |
Prajit Dhara ; Liang Jiang ; Saikat Guha; |
| 699 | Electrically Tunable Magnon-photon Coupling Via Spin-orbit Torque Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present a hybrid magnon-photon device with on-chip superconducting microwave resonators and Y 3Fe 5O 12 (YIG) thin films that has an electrically tunable magnon-photon coupling. |
Jared Gdanski ; Side Guo ; Fengyuan Yang ; Chris Hammel; |
| 700 | A Squeezed Nonlinear Mechanical Oscillator (Part I) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In a two-part presentation, we demonstrate the engineered squeezing of a bulk acoustic wave mechanical mode. |
Uwe von Lüpke ; Stefano Marti ; Yu Yang ; Om Joshi ; Andraz Omahen ; Marius Bild ; Yiwen Chu ; Matteo Fadel; |
| 701 | A Squeezed Nonlinear Mechanical Oscillator (Part II) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In a two-part presentation, we demonstrate the engineered squeezing of a bulk acoustic wave mechanical mode. In this second talk, we investigate the interplay of the strength and detuning of the squeezing operation, together with the mode nonlinearity. |
Stefano Marti ; Uwe von Lüpke ; Yu Yang ; Om Joshi ; Andraz Omahen ; Marius Bild ; Yiwen Chu ; Matteo Fadel; |
| 702 | Integrating Superconducting Qubits with Phononic Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we will present our experimental results developing superconducting qubits on a SiC material platform to realize a hybrid superconducting-phononic device. |
Sueli Skinner Ramos ; Yuanchen Deng ; Brandon Smith ; Michael Miller ; Charles Harris ; Matt Eichenfield ; Lisa Hackett ; Rupert Lewis; |
| 703 | Cryogenic Microwave Source for Qubit Read-out Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present the recent development and experimental results of read-out electronics using a tunnel-diode cryogenic circuit with a tunable generated signal higher than 100 MHz. |
Ivan Grytsenko ; Oleksiy Rybalko ; Yiran Tian ; Asher Jennings ; Rajesh Mohan ; Erika Kawakami; |
| 704 | Coupling GaAs Quantum Devices to Surface Acoustic Wave Phonons Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present SAW resonators in the GHz frequency range integrated with a 2DEG and study the interactions between SAWs and other structures such as quantum dots and Hall bars, working towards charge- and/or spin-phonon coupling. |
Aldo Tarascio ; Taras Patlatiuk ; Pasquale Scarlino ; Dominik Zumbuhl; |
| 705 | Deterministic Multi-phonon Entanglement Between Two Mechanical Resonators on Separate Chips PART 1 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we present deterministic entanglement generation and subsequent tomographic analysis for two distinct surface acoustic resonators situated on separate chips, with the usage of two superconducting qubits. |
Ming-Han Chou ; Hong Qiao ; Christopher Conner ; Gustav Andersson ; Joel Grebel ; Yash Joshi ; Jacob Miller ; Rhys Povey ; Xuntao Wu ; Haoxiong Yan ; Andrew Cleland; |
| 706 | PART TWO: Deterministic Multi-phonon Entanglement Between Two Mechanical Resonators on Separate Chips Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our results open the door for more advanced quantum protocols using mechanical systems with extended lifetimes, including quantum error correction. In the second part of this presentation, we describe the preparation and measurement of multiphonon states entangled between the two physically distinct surface acoustic wave resonators, as well as quantum tomography of these states based on their interactions with the two superconducting qubits. |
Ming-Han Chou ; Christopher Conner ; Hong Qiao ; Gustav Andersson ; Joel Grebel ; Yash Joshi ; Jacob Miller ; Rhys Povey ; Xuntao Wu ; Haoxiong Yan ; Andrew Cleland; |
| 707 | Planarized Vacuum-gap Capacitors for Improved Quantum Optomechanics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we report on the progress toward an alternative planarized fabrication process that combines the benefits of the traditional methods with the advantages of planarization. |
Kristen Genter ; Bradley Hauer ; Florent Lecocq ; Akash Dixit ; Raymond Simmonds ; José Aumentado ; John Teufel ; Katarina Cicak; |
| 708 | Education in Quantum Science at The Master’s Degree Level Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: For this reason, educational innovation from the elementary to the PhD level in quantum science and technology has been identified as a national priority. This talk will focus on this type of education at the Master’s Degree (MS) level. |
ROBERT JOYNT; |
| 709 | Womanium Global Quantum Program: Building A Diverse Quantum Workforce Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present highlights, strategies and best practices. |
Marlou Slot ; Vardaan Sahgal ; Rayssa Bruzaca de Andrade ; Meriam Gay Bautista ; Madalina Mironiuc ; Alex Piedjou Komnang ; Shabin Raj ; Prachi Vakharia; |
| 710 | Developing A Structured Training and Further Education Program in Quantum Technologies – An Overview of The Quantum LifeLong Learning Course Program Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: It caters to professionals ranging from managers and leaders without a technical background who seek an overview of quantum technologies over engineers looking for a thorough understanding of the field to quantum experts seeking a detailed introduction to fault-tolerant quantum computing. We outline our course program and share insights from the lessons we learned during its development. |
Judith Gabel ; Björn Ladewig ; Lukas Sigl ; Anna Donhauser ; Stefan Küchemann ; Jochen Kuhn ; Tatjana Wilk ; Alexander Holleitner ; Jan von Delft; |
| 711 | The Quantum Abacus: A Break-Even Point Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In 2017 Terry Rudolph proposed a method of teaching quantum mechanics and quantum computing using only the simple rules of arithmetic to students as early as sixth grade. |
Dan-Adrian German; |
| 712 | Computational Course-based Undergraduate Research Experience (CURE) on 2D Quantum Materials Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In a lab exercise, the students perform computational studies with density functional theory (DFT), provided by a convenient GUI tool on nanoHUB (https://nanohub.org/tools/ucb_compnano) that I co-developed which requires minimal computational skills. |
David Strubbe; |
| 713 | Commercially Available, Modular Superconducting Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we show the results of an industry collaboration between Tabor Quantum Systems, QuantWare, and FormFactor, Inc. |
Jason Ball ; Xiaoyue Jin ; Mark Elo ; Brandon Boiko ; Jack DeGrave ; Pepijn Rot ; Matthijs Rijlaarsdam ; Tijmen de Jong; |
| 714 | The 1925 Revolution of Matrix Mechanics and How to Celebrate It in Quantum Mechanics Classes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In preparation for the 100th anniversary of the discovery of quantum mechanics, we present a historical and logical discussion of how matrix mechanics was discovered, and how it was used to solve quantum-mechanical problems. |
James Freericks ; Leanne Doughty ; Jason Tran; |
| 715 | Quasiparticle Dynamics in Superconducting Microwave Coplanar Waveguide Resonator Arrays at Single Photon Regime Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Niobium nitride (NbN) based circuits have recently gained much attention in quantum science and technology due to their high critical temperature and relatively high critical … |
Paniz Foshat ; Shima Poorgholam-khanjari ; Valentino Seferai ; Hua Feng ; Susan Johny ; Oleg Mukhanov ; Matthew Hutchings ; Muhammad Imran ; Robert Hadfield ; Martin Weides ; Kaveh Delfanazari; |
| 716 | Development of High-quality Factor Thin Tantalum Superconducting Microwave Coplanar Waveguide Resonators for Coherent Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We designed, calculated, simulated, fabricated and measured thin film (40 nm) arrays of α-Ta coplanar waveguide (CPW) microwave resonators with a niobium (Nb) seed layer on the unheated high resistivity silicon (Si) substrate. |
Shima Poorgholam-khanjari ; Valentino Seferai ; Paniz Foshat ; Robert Hadfield ; Martin Weides ; Kaveh Delfanazari; |
| 717 | Exploring Fluxon Tunneling Dynamics in The IST Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In the IST qubit limit [1], this suppression of fluxon transitions can lead to remarkable relaxation times measured to be on the order of several hours. In this work, we delve into the dynamics of fluxon tunneling and initialization studied in such an IST qubit. |
Lucky Kapoor ; Farid Hassani Bijarbooneh ; Alesya Sokolova ; Igor Rozhansky ; Alexander Poddubny ; Johannes Fink; |
| 718 | SFQ-based Asynchronous Persistent-current Biasing Grid for Tunable-coupler QPU Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we present a single-flux quantum circuit that allows row and column addressing of persistent current cells. |
Ugur Yilmaz ; Pasi Lähteenmäki ; Aleksei Sharafiev ; Olli-Pentti Saira; |
| 719 | Magnetic Field Dependence of A Josephson Travelling Wave Parametric Amplifier Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate the magnetic field dependence of a photonic-crystal Josephson travelling-wave parametric amplifier (TWPA). |
Lucas Janssen ; Christian Dickel ; Guilliam Butseraen ; Jonas Krause ; Alexis Coissard ; Luca Planat ; Gianluigi Catelani ; Nicolas Roch ; Yoichi Ando; |
| 720 | Deposition and Characterization of Tantalum Thin Films on Different Seed Layers Towards Their Application in Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We have investigated ~200 nm thick Ta films, which were sputter-deposited on high resistivity silicon (100) substrates at different temperatures, ranging from T=300–900K, and on different seed layers (Al, AlN, Ti, TiN and TaN) with few nanometres thickness in-between Si and Ta. We have characterized these thin films in terms of surface roughness, residual-resistance ratio (RRR), crystal phase composition and superconducting transition temperature. |
Moritz Singer ; Benedikt Schoof ; Harsh Gupta ; Rui Pereira ; Daniela Zahn ; Johannes Weber ; Daniil Bazulin ; Leon Koch ; Stefan Filipp ; Marc Tornow; |
| 721 | Impedance-matched CPW High Kinetic Inductance Parametric Amplifier Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In our work, we have successfully designed and fabricated a series of high KI parametric amplifiers with KI values ranging from 50pH/square to 100pH/square. |
Cong Fu ; Hua Cong ; Valentino Seferai ; Jharna Paul ; Paul Reynolds ; Martin Weides; |
| 722 | Universal, Scalable Characterization and Correction of Pulse Distortions in Controlled Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose and experimentally verify an extensible method to model the behavior of control lines with the system function and correct it with digital filters. |
LL Guo ; Peng Duan ; Sheng Zhang ; Zhao-Yun Chen ; Guo-Ping Guo; |
| 723 | Quantum Enhanced Metrology Using 100-photon Fock States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present an efficient method for generating Fock states containing up to 100 photons within a superconducting microwave cavity through the development of a programmable photon number filter. |
Xiaowei Deng ; Sai Li ; Zijie Chen ; Zhongchu Ni ; Yanyan Cai ; Haifeng Yu ; Changling Zou ; Song Liu ; Fei Yan ; Yuan Xu ; Dapeng Yu; |
| 724 | Automatic Quantum Circuit Generation for Finding Ground States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This talk will discuss the roadmap to make it efficient, and the roadblocks that we might encounter in the way. |
Gonzalo Alvarez ; Justin Lietz ; Yan Wang ; Daniel Chaves ; Vicente Leyton Ortega; |
| 725 | Simulating Polaritonic Ground States on Noisy Quantum Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we introduce a general framework for simulating electron-photon coupled systems on small, noisy quantum devices. |
Mohammad Hassan ; Fabijan Pavosevic ; Derek Wang ; Johannes Flick; |
| 726 | Implementation of The Density-functional Theory on Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This article presents a quantum algorithm that has a linear scaling with respect to the number of atoms, which is much smaller than the number of electrons. |
Xiantao Li ; Chunhao Wang ; Taehee Ko ; Taehee Ko; |
| 727 | Quantum Simulation of The Nonlinear Bosonic Kitaev Chain in A Parametric Cavity Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we numerically study the nonlinear bosonic Kitaev chain model realized in a multimode cavity. |
Zheng Shi ; Hadiseh Alaeian ; Berislav Buca ; Jamal Busnaina ; Christopher Wilson; |
| 728 | Analog Variational Quantum Simulators with Long-range Interactions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Among the different proposals, Variational Quantum Time Evolution algorithms (VarQTE) can perform either real or imaginary time evolution within the same framework [7]. In this work we propose to use this variational approach to fully harness the tunability of the long-range interactions in analogue quantum simulators. |
Cristian Tabares ; Jan Schneider ; Alberto Muñoz de las Heras ; Luca Tagliacozzo ; Diego Porras ; Alejandro Gonzalez-Tudela; |
| 729 | Quantum Expectation Value Estimation By Doubling The Number of Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, to reduce the measurement cost, we utilize the fact that the expectation values of all the Pauli strings, albeit their absolute values alone, can be simultaneously “measured” by performing Bell basis measurements on two copies of the quantum state of interest. |
Masaya Kohda ; Hiroshi Yano ; Shoichiro Tsutsui ; Keita Kanno ; Yuya Nakagawa; |
| 730 | Potentials and Limitations of Analog Quantum Simulators in Variational Quantum Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we propose an experimental-friendly ansatz based on analog quench dynamics generated by native Hamiltonian of quantum hardware. |
Kasidit Srimahajariyapong ; Supanut Thanasilp ; Thiparat Chotibut; |
| 731 | Preparation of MPS with Log-depth Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We consider the preparation of matrix-product states (MPS) via quantum circuits of local gates. |
Daniel Malz ; Georgios Styliaris ; Zhi-Yuan Wei ; Juan Cirac; |
| 732 | Rocky Raccoon: Automated Quantum Circuit Optimization Using Graph-based Deep Reinforcement Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a framework for quantum circuit optimization by formulating it as a Markov decision process, and use graph-based deep reinforcement learning to train an agent to optimize quantum circuits by applying local and simple rewrite rules. |
Abhishek Abhishek ; Olivia Di Matteo ; David Wierichs ; Nathan Killoran; |
| 733 | Discovering Novel Quantum Dynamics with Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Time permitting, I will talk about our effort on analog simulation, using the native Hamiltonian of the device. A goal of this talk is to provide a sense of what NISQ discoveries to anticipate and a time scale for them. |
Pedram Roushan; |
| 734 | Simulating Fermi-Hubbard Physics with Quantum Dot Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will introduce the system and review our latest results (including unpublished work) on quantum magnetism and exciton physics. |
Lieven Vandersypen; |
| 735 | Quantum Simulation with Coplanar-Waveguide Lattices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here I will present measurements from a next-generation CPW lattice device featuring multiple transmon qubits coupled to a quasi-1D lattice which features not only conventional quadratic band edges, but also flat and linearly-dispersing bands. |
Alicia Kollar; |
| 736 | Quantum Simulation with Ultracold Atoms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here I will discuss approaches using ultracold atoms in optical potentials to perform quantum simulation of Hubbard models and quantum spin systems. |
Peter Schauss; |
| 737 | Uncovering Local Integrability in Quantum Many-Body Dynamics Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Interacting many-body quantum systems and their dynamics, while fundamental to modern science and technology, are formidable to simulate and understand. However, by discovering … |
Zlatko Minev; |
| 738 | Novel Control of The Schrödinger Cat State in High-spin Nuclei in Silicon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present the experimental demonstration of a quantum control scheme to leverage the full Hilbert space of high-spin (I=7/2) 123Sb donor nucleus implanted in silicon. |
Xi Yu ; Benjamin Wilhelm ; Arjen Vaartjes ; Pragati Gupta ; Daniel Schwienbacher ; Anders Kringhoej ; Danielle Holmes ; Fay Hudson ; Kohei Itoh ; Alexander Jakob ; David Jamieson ; Barry Sanders ; Andrew Dzurak ; Andrea Morello; |
| 739 | Entangling Electrons and Nuclei in A Four-qubit, Two-atom Device in Silicon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present a four-qubit system (two electrons, two 31P nuclei) consisting of two exchange-coupled phosphorus donor atoms in silicon, interacting over a distance of 18.5+-3.5 nm. |
Mark van Blankenstein; |
| 740 | Understanding Transport Through Many-body States of Dopant Arrays and Jelly-bean Quantum Dots Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Understanding many-body states in silicon quantum devices is essential for exploiting dopant arrays as analog quantum simulators and using jelly-bean quantum dots as charge pumps for long-range quantum information transfer. We investigate theoretically how transport reveals information about these many-body states. |
Garnett Bryant ; Yan Li ; Keyi Liu ; Michal Gawelczyk ; Michal Zielinski; |
| 741 | Andrea MorelloIntroduction to Quantum Information in Higher Dimensions: High-spin Nuclei in Silicon and Their Analogy to Other Qudits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Experiments are underway to demonstrate nonclassical states of the spin, such as Schroedinger cat states [3], as well as logical qubit encodings that exploit the symmetry and natural interactions in the physical Hamiltonian of the large nuclear spin [4]. This introductory talk will present a unified picture of the physics and quantum information aspects of qudits across different physical platforms, highlighting the universality of high-dimensional quantum information processing. |
Andrea Morello; |
| 742 | Electron Spin Configurations in Phosphorus Arrays in Silicon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we analyzed the spin configuration and electron charge distribution in multi-electron states bound to triangular, quadrilateral, and hexagonal phosphorus arrays in silicon, which we obtained by carrying out atomistic tight-binding Hartree-Fock and configuration interaction calculations. |
Maicol Ochoa ; Keyi Liu ; Michal Zielinski ; Garnett Bryant; |
| 743 | Ring Arrays in Quantum Dots: Nagaoka Ferromagnetism or Something New? Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we describe theoretical simulations done for rings and arrays of rings at different hole densities for a quantum dot system, such as the dopant arrays studied at NIST. |
Yan Li ; Garnett Bryant ; Keyi Liu; |
| 744 | Probing Localized Charge States in Atom-based Silicon Quantum Dot Arrays Using RF Reflectometry Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we show transport and RF reflectometry measurements on dopant arrays (2×2 and 3×3) to extract charge occupation. |
Fan Fei ; Xiqiao Wang ; Ehsan Khatami ; Jonathan Wyrick ; Pradeep Namboodiri ; FNU Utsav ; Brian Courts ; Albert Rigosi ; Richard Silver; |
| 745 | High-fidelity Fast Single-shot Electron Spin Readout Above 3.5 K Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this paper we show that by precision engineering the location of two multi-donor quantum dot qubits with respect to the charge sensor we can demonstrate latched parity readout of two electrons in only 175 ns integration time with a fidelity of 99.91% at mK temperatures. |
Helen Geng ; Mitchell Kiczynski ; Andrey Timofeev ; Edyta Osika ; Edyta Osika ; Daniel Keith ; Joseph Rowlands ; Ludwik Kranz ; Rajib Rahman ; Yousun Chung ; Joris Keizer ; Samuel Gorman ; Michelle Simmons; |
| 746 | Radio Frequency Reflectometry with Impedance Matching on Si:P Dopant-based Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will describe the effect on the measurement sensitivity caused by the impedance matching. |
Rick Silver ; Fan Fei ; Pradeep Namboodiri ; Joshua Pomeroy ; Brian Courts ; Xiqiao Wang ; Jonathan Wyrick; |
| 747 | Improved Placement Precision of Donor Spin Qubits in Silicon Using Molecule Ion Implantation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we investigate the suitability of phosphorus difluoride (PF 2) molecule ions to fabricate high-quality 31P donor qubits. |
Benjamin Wilhelm ; Danielle Holmes ; Alexander Jakob ; Xi Yu ; Fay Hudson ; Kohei Itoh ; Andrew Dzurak ; David Jamieson ; Andrea Morello; |
| 748 | Reducing Losses in Transmon Qubits Using Fluorine-Based Etches Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we discuss the results of applying selective fluorine-based etches, targeting lossy silicon oxides, in close proximity to sensitive aluminum circuit elements such as Josephson Junctions, resonators and crossover tethers. |
Michael Gingras ; Bethany Niedzielski ; Ali Sabbah ; Felipe Contipelli ; Kate Azar ; Greg Calusine ; Cyrus Hirjibehedin ; David Kim ; Jeffrey Knecht ; Christopher O’Connell ; Alexander Melville ; Hannah Stickler ; Mollie Schwartz ; Jonilyn Yoder ; William Oliver ; Kyle Serniak; |
| 749 | Single-crystal Aluminum Superconducting Ultra-thin Films Grown on GaAs(111)A with Low Twin Ratios and The Impact on Microwave Properties Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we have demonstrated single-crystal aluminum (Al) ultra-thin films on GaAs(111)A substrates with high crystallinity and very low twin ratios. |
Hsien-Wen Wan ; Yi-Ting Cheng ; Chao-Kai Cheng ; Jui-Min Chia ; Chien-Ting Wu ; Chia-Hung Hsu ; Sheng-Shiuan Yeh ; Yen-Hsiang Lin ; Jueinai Kwo ; Minghwei Hong; |
| 750 | Microstrip Resonators with Internal Quality Factors Over One Million Made from MBE-Al Films Capped with An In-situ Deposited Oxide Layer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present high-quality Al resonators fabricated on sapphire. |
Kuan-Hui Lai ; Yen-Hsun Glen Lin ; Lawrence Young ; Wan-Sin Chen ; Chao-Kai Cheng ; Wei-Jie Yan ; Yen-Hsiang Lin ; Jueinai Kwo ; Minghwei Hong; |
| 751 | Investigating Loss in NbN and NbTi Resonators on High Resistivity Si Substrates Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we study the superconducting coplanar waveguide resonators made from thin films of NbN and NbTi sputtered on silicon substrates. |
Krishna Dindial ; Bassel Heiba Elfeky ; William Strickland ; Alisa Danilenko ; Melisa Mikalsen ; Patrick Strohbeen ; Jaewoo Lee ; Javad Shabani; |
| 752 | Impact of Deposition Method on Structure and Performance of Nb/Si-based Superconducting Coplanar Waveguide Resonators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Structural defects on surfaces and interfaces in superconducting qubits can lead to decoherence and two-level systems (TLS) loss. Using various electron microscopy, electronic transport, and magnetic characterization methods, we reveal the effects deposition methods have on planar Nb on Si resonator performance and TLS loss, and correlate these to material property variations on average grain size, surface roughness, interface chemistry, magnetic and electronic property differences. |
Cameron Kopas ; Jayss Marshall ; Jin-Su Oh ; Xiaotian Fang ; Matthew J Kramer ; Kamal Joshi ; Ruslan Prozorov ; Daniel Setiawan ; Ella Lachman ; Josh Mutus ; Kameshwar Yadavalli ; Lin Zhou; |
| 753 | Exploring The Effect of Growth and Surface Quality of Niobium Thin-films for Superconducting Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we will present the design of several types of test structures, including lumped and distributed resonators and transmon qubits, used to probe various contributions to loss, including surface and interface loss and quasiparticle losses. |
Chi Zhang ; Richard Germond ; Noah Janzen ; Mustafa Bal ; Anne-Marie Valente-Feliciano ; Adrian Lupascu; |
| 754 | Understanding Loss Mechanisms in Tantalum-based Superconducting Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we explore the loss mechanisms in tantalum circuits including loss tangent and defect coupling. |
Ziqi (Candice) Kang ; Kan-Heng Lee ; Larry Chen ; Maria Virginia Altoe ; David Santiago ; Irfan Siddiqi; |
| 755 | Tantalum Thin Films on A-plane Sapphire for Low-loss Superconducting Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Superconducting quantum circuits are a promising hardware platform in the fields of quantum computing. Ways to reduce noise and dissipation are of major importance in order to … |
Ritika Dhundhwal ; Pierre-Adrien Langrognet ; Lucas Brauch ; Haoran Duan ; Mahya Khorramshahi ; Dirk Fuchs ; Alexander Welle ; Di Wang ; Christian Kübel ; Jasmin Aghassi ; Ioan-Mihai Pop ; Thomas Reisinger; |
| 756 | Low-Temperature MBE Growth of Superconducting Ta Films on Silicon and Sapphire Substrates Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Alternatively, superconducting tantalum qubits can be grown on Si substrates by heating the substrate, but the potential formation of silicides at the Si-Ta interface could impact qubit coherence. Here, we demonstrate low-temperature MBE growth (<20K) to stabilize alpha-Ta independent of the substrate without using a seed layer enabling its integration with various material systems. |
Chris Palmstrom ; Aaron Engel ; Teun van Schijndel ; Jason Dong ; Anthony McFadden ; Raymond Simmonds; |
| 757 | Growth of Ordered Tantalum Films and Integration Into Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate the growth of tantalum on Si and sapphire to understand the limits of atomically-ordered superconducting qubit construction. |
Loren Alegria ; Kevin Chaves ; Soohyun Im ; Sean O’Kelley ; Kristin Beck ; Alessandro Castelli ; Luis Martinez ; Alexander Baker ; Yaniv Rosen ; Paul Voyles; |
| 758 | Microscopic Source of Quasiparticle Loss in Tantalum Resonators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present a comparative study of the structural and thermodynamic properties of Ta-based resonators with high- and low-T c characteristics via X-ray diffraction and resistivity measurements. |
Faranak Bahrami ; Nana Shumiya ; Matthew Bland ; Ray Chang ; Russell McLellan ; Kevin Crowley ; Chen Yang ; Logan Bishop-Van Horn ; Yusuke Iguchi ; Kathryn Moler ; Robert Cava ; Andrew Houck ; Nathalie de Leon; |
| 759 | Dielectric Loss from Josephson Junctions in Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we study the dependence of transmon lifetime on the size of the junction leads in order to quantify the contribution of aluminum oxide to dielectric loss in superconducting qubits. |
Kevin Crowley ; Matthew Bland ; Parth Jatakia ; Lev Krayzman ; Faranak Bahrami ; Ray Chang ; Nana Shumiya ; Russell McLellan ; Alexander Pakpour-Tabrizi ; Nathalie de Leon ; Andrew Houck; |
| 760 | Interphase Engineering in Tantalum and Aluminium Superconducting Resonators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we investigate the performance of alpha-tantalum and aluminum resonators, which have been fabricated utilizing various seed layers. |
Daniel Perez ; Xiaoyu Piao ; Ryan Leong ; Shana Massar ; Yann Canvel ; A. M. Vadiraj ; Tsvetan Ivanov ; Rohith Acharya ; Jacques Van Damme ; Bart Raes ; Massimo Mongillo ; Anton Potocnik ; Danny Wan ; Johan Swerts ; Kristiaan De Greve; |
| 761 | Controlling Surface Oxidation of Superconducting Circuit Materials Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will present a novel approach for suppressing the formation of surface Ta oxide, aiming to unlock the full potential of Ta-based quantum circuits for high-performance quantum computing applications. |
Chenyu Zhou ; Junsik Mun ; Juntao Yao ; Aswin kumar Anbalagan ; Mohammad Hossain ; Russell McLellan ; Ruoshui Li ; Kim Kisslinger ; Gengnan Li ; Xiao Tong ; Ashley Head ; Conan Weiland ; Steven Hulbert ; Andrew Walter ; Qiang Li ; Yimei Zhu ; Peter Sushko ; Mingzhao Liu; |
| 762 | Heteroepitaxial Oxide/α-Ta(110) Films on Sapphire(11-20) – Growth, Structure, Transport, and Microwave Properties Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: 2,3 The research aims to investigate the microwave properties of the in-situ deposited heterostructures to understand dielectric losses in superconducting quantum circuits. |
Yi-Ting Cheng ; Hsien-Wen Wan ; Chao-Kai Cheng ; Ko-Hsuan Chen ; Jui-Min Chia ; Chia-Hung Hsu ; Yen-Hsiang Lin ; Jueinai Kwo ; Minghwei Hong; |
| 763 | Resilient Multi-mode Superconducting Qubit Design with Evolutionary Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we present novel multi-mode qubit architectures designed using evolutionary algorithms that exhibit desirable qubit characteristics, including restricted transitions, improved relaxation and dephasing times, and resilience against fabrication defects. |
Pablo Garcia Azorin ; Francisco Cárdenas López ; Guillermo Romero ; Gerhard Huber ; Stefan Filipp ; Mikel Sanz; |
| 764 | GraphQ: High-Coherence Superconducting Circuit Optimization Using Graph Machine Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we propose GraphQ, a machine-learning-based approach to explore high-coherence qubits. |
Shashwat Kumar ; Shikhar Tuli ; Jens Koch ; Niraj Jha ; Andrew Houck; |
| 765 | Reducing Soft 0-pi Qubit Cross-capacitance with Silicon Fin Capacitors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we report on progress implementing high-Q silicon fin capacitors on the soft 0-pi superconducting qubit to improve the millisecond T1 lifetimes, possibly limited by capacitor Q, and dephasing times by reducing cross-capacitances. |
Pablo Aramburu Sanchez ; Anthony McFadden ; Tongyu Zhao ; Trevyn Larson ; Raymond Simmonds ; Andras Gyenis; |
| 766 | Decoherence Metrology and Mitigation for Novel Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Further improvements to the performance of superconducting qubits are required in order to ease the burden of quantum error correction algorithms as quantum processors grow in … |
Kyle Serniak; |
| 767 | Measurement of Soft Zero-pi Qubit with Parallel-plate Capacitors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Deviating from the conventional coplanar interdigitated capacitor design, parallel-plate capacitors can be implemented with a much smaller area, achieving the desired large charge-mode capacitance while reducing unwanted stray capacitances. Here, we show the decoherence properties of this zero-pi qubit with parallel-plate capacitors in terms of its susceptibility against charge and flux noise. |
Junghyun Kim ; Ilan Rosen ; Junyoung An ; Max Hays ; Agustin Di Paolo ; Leon Ding ; Kate Azar ; Jeffrey Gertler ; Thomas Hazard ; Michael Gingras ; Bethany Niedzielski ; Hannah Stickler ; Katrina Sliwa ; Mollie Schwartz ; Jonilyn Yoder ; Terry Orlando ; Jeffrey Grover ; Kyle Serniak ; William Oliver; |
| 768 | Two-qubit Gate for The 0-π Qubit: Part 1 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we demonstrate a fast microwave-activated controlled-Z gate for the capacitively coupled soft 0 − π qubit. |
Zhenxing Liu ; Eli Weissler ; András Gyenis ; Joshua Combes; |
| 769 | Two Qubit Gates for The 0-π Qubit Part 2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Building upon the previous talk, we numerically demonstrate a CNOT gate for 0 – π, enabled by identifying a lambda-like subsystem within the system of two coupled qubits and driving both qubits independently. |
Eli Weissler ; Zhenxing Liu ; András Gyenis ; Joshua Combes; |
| 770 | Gates for Protected Superconducting Qubits Via Their Internal Modes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Following the original proposal for a 0-π qubit [1], Brooks, Kitaev, and Preskill (BKP) presented a method for performing a protected gate on a π-periodic superconducting qubit [2]. |
Thomas Smith ; Andrew Doherty; |
| 771 | Simultaneous Purcell and Shot-noise Protection in A Flux-noise Resistant Multi-mode Superconducting Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, coupling to readout & control circuitry and neighboring qubits, leading to Purcell decay, shot-noise induced dephasing and crosstalk, can severely limit the performance of the qubit. To protect the qubit from these effects, we propose a superconducting multi-mode circuit consisting of three superconducting islands coupled to a central island via Josephson junctions. |
Frederik Pfeiffer ; Max Werninghaus ; Christian Schweizer ; Niklas Bruckmoser ; Leon Koch ; Niklas Glaser ; Malay Singh ; Gerhard Huber ; Gleb Krylov ; Johannes Schirk ; Carlos Riofrío ; Stefan Filipp; |
| 772 | A Composite Floquet Flux Qubit with Long Coherence Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a superconducting qubit architecture that uses Floquet physics to achieve long coherence times for bit and phase flip errors, leaving erasures as the dominant (albeit still small) type of logical error. |
Matthew Thibodeau ; Angela Kou ; Bryan Clark; |
| 773 | Non-perturbative Ultrastrong Couplings in Superconducting Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we present an experimental study of the physics of the non-perturbative ultrastrong coupling (USC) regime. |
Alba Torras Coloma ; Luca Cozzolino ; David López-Núñez ; Elia Bertoldo ; Pol Forn-Díaz; |
| 774 | Noise Modeling of Trimon Superconducting Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study the noise characteristics and explore symmetries within the trimon’s noise environment, starting from a circuit-level description. |
Arian Vezvaee ; Vinay Tripathi ; Vivek Maurya ; Eli Levenson-Falk ; Daniel Lidar; |
| 775 | Analysis of Operating Points in The Fluxonium Molecule Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Importantly, the choice of operating point will determine the dominant mechanism of decoherence and constrain available control schemes. We present a theoretical analysis of this system and the results of preliminary measurements. |
Kunal L. Tiwari ; Jeffrey Gertler ; Kate Azar ; Mallika Randeria ; Thomas Hazard ; Michael Gingras ; Bethany Niedzielski ; Hannah Stickler ; Jonilyn Yoder ; Mollie Schwartz ; Kyle Serniak; |
| 776 | A Real-time, Scalable, Fast and Highly Resource Efficient Decoder for A Quantum Computer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we introduce the Collision Clustering decoder, which overcomes both challenges. |
Earl Campbell ; Ben Barber ; Kenton Barnes ; Tomasz Bialas ; Okan Buğdaycı ; Neil Gillespie ; Kauser Johar ; Ram Rajan ; Adam Richardson ; Luka Skoric ; Canberk Topal ; Mark Turner ; Abbas Ziad; |
| 777 | Demonstration of Real-Time Decoding in A Quantum Control Stack Within 500 Ns Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: A comprehensive review and perspective can be found in Battistel et al (arXiv:2303.00054). |
Francesco Battistel ; Namitha Liyanage ; Francesco Maio ; Calin Sindile ; Jordy Gloudemans ; Jules van Oven ; Cornelis Christiaan Bultink; |
| 778 | Multi-FPGA Union-Find Decoder for Surface Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We map the Helios architecture proposed to run the decoder to a custom multiple-FPGA system with a hybrid tree-grid topology. |
Namitha Godawatte Liyanage ; Yue Wu ; Siona Tagare ; Lin Zhong; |
| 779 | Scaling Hardware-Based Quantum Error Correction Via A Multi-Context Approach Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present a way to reduce hardware ressource consumption by using a multi-context approach, trading hardware ressources for execution time. |
Jan-Erik Wichmann ; Maximilian Heer ; Kentaro Sano; |
| 780 | Correlated Decoding of Logical Qubit Algorithms with Transversal Gates Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Recent experiments have realized error-corrected quantum algorithms on a multi-qubit logical processor, crucially relying on the use of transversal gates. Here we observe that the performance of such algorithms can be substantially improved by accounting for physical error propagation during transversal gates and decoding the logical qubits jointly. |
Madelyn Cain ; Dolev Bluvstein ; Nadine Meister ; Chen Zhao ; Pablo Bonilla Ataides ; Hengyun Zhou ; Mikhail Lukin; |
| 781 | Hypergraph Minimum-Weight Parity Factor Decoder for QEC Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we introduce and implement an approximate MWPF decoder on hypergraphs. |
Yue Wu ; Lin Zhong ; Shruti Puri; |
| 782 | Decoding Surface-code Experiments with A Recurrent Neural Network Decoder Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Neural network decoders are particularly promising since they do not require any prior information about the physical noise. In this talk, we explore the performance of such a decoder on both simulated data and the data from the recent surface code experiment performed in [Google Quantum AI, Nature 614, 676–681 (2023)]. |
Boris Varbanov ; Marc Serra-Peralta ; David Byfield ; Barbara Terhal; |
| 783 | Scalable Graph Neural Network Decoders for Quantum LDPC Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a novel graph-NN decoder which is trained on the Tanner graph of the QLDPC code. |
Arshpreet Maan ; Alexandru Paler; |
| 784 | A Fast Renormalization-group Tensor-network Decoder for Planar Quantum Low-density Parity-check Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a fast and Bayes-optimal-approximating tensor network decoder for planar quantum LDPC codes based on the tensor renormalization group algorithm, originally proposed by Levin, and Nave. |
Cole Maurer ; Andrew Landahl; |
| 785 | Fast and Accurate Decoder for The XZZX Code Using Simulated Annealing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Specifically, to prepare an initial configuration of SA, we propose to employ recovery chains obtained by a greedy matching decoder, which brings us fast convergence of SA. |
Tatsuya Sakashita ; Jun Fujisaki ; Hirotaka Oshima ; Shintaro Sato ; Keisuke Fujii; |
| 786 | Hardness Results for Decoding The Surface Code with Pauli Noise Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This motivates us to consider the complexity of surface code decoding where the input to the decoding problem is not only the syndrome-measurement results, but also a noise model in the form of probabilities of single-qubit Pauli errors for every qubit. In this setting, we show that Maximum Probability Error (MPE) decoding and Maximum Likelihood (ML) decoding for the surface code are NP-hard and #P-hard, respectively. |
Alex Fischer ; Akimasa Miyake; |
| 787 | Minimizing Spectator Errors with Optimal Control Pulse Engineering Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we use optimal control theory (OCT) to numerically engineer $X_{pi/2}$ pulses that are robust against ZX, XZ, and IX spectator interactions and calibrate the pulse on an IBM test device using the dimensional reduction method developed by our group. |
Emma Berger ; Daniel Puzzuoli ; Holger Haas ; Vivek Maurya ; Zoé McIntyre ; Ken Wei ; David McKay; |
| 788 | Control Stacks for Quantum Advantage Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We here present a new level of scalability that paves the way for quantum computers with practical applications. |
Francesco Battistel ; Bijan Binaei Haghighi ; Daniel Boddou ; Mert Büyükmıhcı ; Renato da Silva Severo ; Damaz de Jong ; Fokko de Vries ; Edmundo Ferreira ; Joel Foreman ; Jordy Gloudemans ; Antione Gouby ; Bilal Kalyoncu ; Zuodong Liang ; Aviral Mishra ; Tahereh Niknejad ; Calin Sindile ; Marijn Tiggelman ; Willemijntje Uilhoorn ; Yigitcan Uzun ; Tijmen van Eijk ; Wouter Vlothuizen ; Daniel Weigand ; Jules van Oven ; Cornelis Christiaan Bultink; |
| 789 | Building Intermediate-scale Quantum Control Systems in A Star Network Architecture Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will present a Quantum Computing Control System (QCCS) solution that can synchronize and feedback-control up to 448 high-fidelity physical channels at microwave frequencies. |
Zhixin Wang ; Andrea Corna ; Mark Kasperczyk ; Chunyan Shi ; Bruno Küng ; Taekwan Yoon ; Edward Kluender ; Sebastian Dütsch ; Tobias Kammacher ; Stefan Altorfer ; Nikolaos Anastasiadis ; Artem Khvostov ; Benjamin Schmid ; Liberto Beltrán ; Andreas Messner ; Flavio Heer ; Tobias Thiele; |
| 790 | Learning-based Calibration of Flux Crosstalk in Transmon Qubit Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate the experimental performance of a learning-based approach to DC-flux and fast-flux crosstalk calibration on an array of 16 flux-tunable transmon qubits. |
Cora Barrett ; Amir Karamlou ; Sarah Muschinske ; Ilan Rosen ; Jochen Braumuller ; Rabindra Das ; David Kim ; Bethany Niedzielski ; Megan Schuldt ; Kyle Serniak ; Mollie Schwartz ; Jonilyn Yoder ; Terry Orlando ; Simon Gustavsson ; Jeffrey Grover ; William Oliver; |
| 791 | Enhancing Execution Efficiency of Quantum-classical Algorithms Through Hardware-efficient Implementation on FPGAs Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our work introduces an implementation of classical computation on FPGA control hardware, using a lean design approach to create digital circuits with minimal latency. |
Abhi Rajagopala ; Neelay Fruitwala ; Yilun Xu ; Akhil Francis ; Gang Huang ; Christopher Spitzer ; David Santiago ; Katherine Klymko ; Kasra Nowrouzi; |
| 792 | Fast Full-Device Characterization and Gate Calibration with A Graph-Based Scheduler Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This talk presents a system-wide tune-up approach for quantum devices. |
Ayush Pancholy ; Aaron Barbosa ; Varun Menon ; Shobhan Kulshreshtha ; Yuval Baum ; Pranav Mundada ; Marti Vives; |
| 793 | Noise-Aware Circuit Compilations for A Continuously Parameterized Two-Qubit Gateset Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To conclude, I will present a roadmap of future planned developments to broaden QSCOUT’s offerings, including mid-circuit measurements and multi-qubit entangling gates. |
Christopher Yale; |
| 794 | Fast Qubit Frequency Tuning Approaches for High-Fidelity CZ Gates in Superconducting Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present a comparative analysis of different approaches for tuning qubit frequencies during a controlled-Z gate operation. |
Fabian Marxer ; Tuure Orell ; Otto Salmenkivi ; Jani Tuorila ; Jakub Mrozek ; Eric Hyyppä ; Jyrgen Luus ; Alejandro Gómez Frieiro ; Alpo Välimaa ; Julia Lamprich ; Wei Liu ; Alessandro Landra ; Caspar Ockeloen-Korppi ; Jeffrey Chan ; Juha Hassel ; Kuan Tan ; Johannes Heinsoo ; Antti Vepsäläinen; |
| 795 | Closed-loop Optimization for High-fidelity Controlled-Z Gates in Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we use a superconducting qubit architecture with fixed-frequency qubits and tunable coupling elements. |
Niklas Glaser ; Max Werninghaus ; Federico Roy ; João Romeiro ; Ivan Tsitsilin ; Leon Koch ; Niklas Bruckmoser ; Johannes Schirk ; Malay Singh ; Lasse Södergren ; Stefan Filipp; |
| 796 | Quantum Optimal Control of Superconducting Qubits with Q-PRONTO Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk I will describe Q-PRONTO [1,2], a new method for QOC that can achieve quadratic convergence. |
Jieqiu Shao ; Marco Nicotra ; Andras Gyenis ; Brian Isakov ; Mantas Naris; |
| 797 | Co-design of Quantum Computing Devices with Optimal Control Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we assume this perspective and use optimal control tools to derive the gates required by a toy two-qubit algorithm consisting of simultaneous single-qubit gates followed by an entangling gate and, in tandem, explore the model space of superconducting quantum computer design, from dispersively coupled to strongly interacting qubits, to maximize gate fidelity. |
Nicolas Wittler ; Frank Wilhelm-Mauch ; Shai Machnes; |
| 798 | Good and Bad News for Noisy Variational Quantum Algorithms – Part I Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Recent years have seen the development of shallow quantum circuits for these purposes. In this talk, we present a thorough analysis of how noise affect these algorithms’ performances. |
David Arvidsson-Shukur ; Christopher Long ; Kieran Dalton ; Nikola Yanakiev ; Crispin Barnes ; Yordan Yordanov ; Charles Smith ; Normann Mertig; |
| 799 | Good and Bad News for Noisy Variational Quantum Algorithms – Part II Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Using density-matrix simulations, we benchmark the noise resilience of ADAPT-QAOA and Dynamic-ADAPT-QAOA. We compute the gate-error probability p below which these algorithms provide, on average, more accurate solutions than the classical, polynomial-time approximation algorithm by Goemans and Williamson. |
Christopher Long ; Nikola Yanakiev ; Crispin Barnes ; Normann Mertig ; David Arvidsson-Shukur; |
| 800 | On Penalty Functions for Variational Quantum Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Situated between a dedicated quantum emulator—which bootstraps one quantum system to mimic another—and a fully programmable quantum processor, lies the celebrated gate-based … |
Jacob Biamonte; |
| 801 | Impact of Incoherent Noise on Grover and Quantum Phase Estimation Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present the impact of incoherent noise on two algorithms. |
Muhammad Faryad; |
| 802 | Noise-induced Transition in Optimal Solutions of Variational Quantum Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present the numerical simulation, experimental demonstration using IBM QPUs, and theoretical analysis indicating that similar transitions exist beyond the simple model. |
Andy C. Y. Li ; Imanol Hernandez; |
| 803 | Engineered Dissipation to Mitigate Barren Plateaus Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Variational quantum algorithms provide a promising solution to optimization problems on noisy quantum computers, with applications ranging from chemistry to machine learning. |
Antonio Sannia ; Francesco Tacchino ; Ivano Tavernelli ; Gian Luca Giorgi ; Roberta Zambrini; |
| 804 | Approximate Quantum Algorithms for Efficient Classical-to-Quantum Data Loading and Encoding Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Consequently, the inefficiency of this loading process becomes a significant bottleneck for the application of these algorithms. In this context, we present and compare algorithms for the amplitude and dynamic encodings of classical data into a quantum computer. |
Mikel Sanz ; Javier Gonzalez-Conde ; Ruben Ibarrondo ; Pablo Rodriguez-Grasa; |
| 805 | Shallow-Depth Variational Quantum Hypothesis Testing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a variational quantum algorithm with a parameterized state preparation and two-outcome positive operator valued measure (POVM) which defines the acceptance criteria for the hypothesis test. |
Mahadevan Subramanian ; Sai Vinjanampathy; |
| 806 | Algorithmic Developments for Calculating Excited States on Quantum Hardware Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we build off recent classical innovations in orbital optimization to propose a new method for calculating excited states on quantum hardware. |
Akhil Francis ; Katherine Klymko ; Norm Tubman ; Abhi Rajagopala ; Neelay Fruitwala ; Akel Hashim ; Yilun Xu ; Gang Huang ; Kasra Nowrouzi; |
| 807 | Evidence of Scaling Advantage for The Quantum Approximate Optimization Algorithm on A Classically Intractable Problem Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this paper, we perform an extensive numerical investigation of QAOA on the Low Autocorrelation Binary Sequences (LABS) problem. |
Ruslan Shaydulin; |
| 808 | Calculating Energies in The Contextual Subspace Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: The contextual subspace variational quantum eigensolver (CS-VQE) is a hybrid quantum-classical algorithm that approximates the ground-state energy of a given qubit Hamiltonian. It … |
Alexis Ralli ; Tim Weaving ; William Kirby ; Andrew Tranter ; Peter Coveney ; Peter Love; |
| 809 | Dynamic In-situ Mitigation of Time-varying Noise in Magic State Factories Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a series of dynamic mitigation strategies, focusing on magic state distillation protocols, which can continually stabilize the device while allowing the computation to continue uninterrupted. |
Christopher Kang ; Jason Chadwick ; Fred Chong ; Sophia Lin; |
| 810 | Noise-Resilient Quantum Simulation with The Quantum Error Detection Code Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we propose a procedure to reduce errors in quantum simulations on current and near-term quantum computers using the [[n,n-2,2]] quantum error detection code. |
Dawei Zhong ; Todd Brun; |
| 811 | Virtual Projection Onto The Code Space for Rotation-symmetric Bosonic Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we give a framework for virtually projecting the noisy state quantum state for rotation symmetric bosonic codes, e.g., cat codes and binomial codes in an error mitigation manner. |
Suguru Endo ; Yasunari Suzuki ; Kento Tsubouchi ; Rui Asaoka ; Kaoru Yamamoto ; Yuichiro Matsuzaki ; Yuuki Tokunaga; |
| 812 | Virtual Entanglement Distillation with Quantum Error Mitigation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we propose a complementary method that leverages quantum error mitigation through LOCC and classical post-processing to suppress errors in noisy entanglement. |
Kaoru Yamamoto ; Yasunari Suzuki ; Yuichiro Matsuzaki ; Yuuki Tokunaga ; Suguru Endo; |
| 813 | One-Way Hashing Method with Finite Resources Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: For this reason, the protocol has not yet been realized by any experimental setup. By leveraging properties of the Hartley entropy, we provide significantly improved analytical lower bounds on this protocol’s distillation rate, as well as numerical simulations, which demonstrate that entanglement can be distilled via the one-way hashing method at a higher rate and using fewer initial copies than previously expected. |
Thomas Hahn ; Rotem Arnon-Friedman; |
| 814 | Zero Noise Extrapolation on Logical Qubits By Scaling The Error Correction Code Distance Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: When the proposed technique is compared against unitary folding ZNE under the constraint of a fixed number of executions of the quantum device, DS-ZNE outperforms unitary folding by up to 92% in terms of the post-ZNE logical error rate. |
Misty Wahl ; Andrea Mari ; Nathan Shammah ; William Zeng ; Gokul Subramanian Ravi; |
| 815 | Reducing Quasiparticle-Induced Dissipation Using Gap-Engineering Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will discuss a complementary approach that uses gap-engineering to mitigate the impact of non-equilibrium quasiparticle on chip. |
Stephen Gill ; Akash Dixit ; Trevyn Larson ; Zachary Parrott ; Anthony McFadden ; Katarina Cicak ; Raymond Simmonds ; John Teufel ; José Aumentado ; Florent Lecocq; |
| 816 | Quasiparticle Poisoning in Superconducting Qubit Arrays from Controlled Gamma Irradiation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In order to study the dynamics of gamma ray impacts on superconducting qubit arrays, we use a gamma-ray source outside the dilution refrigerator to controllably dose our chip within. |
Clayton Larson ; Kenneth Dodge ; Kiichi Okubo ; Eric Yelton ; B.L.T. Plourde; |
| 817 | Characterization of Thermalization Timescales in Superconducting Qubits Using Quasiparticle Poisoning Rates Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We use weakly charge-sensitive transmons to measure quasiparticle poisoning in qubit arrays. |
Kenneth Dodge ; Clayton Larson ; Kiichi Okubo ; Eric Yelton ; B.L.T. Plourde; |
| 818 | Multi-qubit Correlated Quasiparticle Transitions in Large Array of Tantalum Transmon Qubits: Part I Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This work focuses on observing correlated errors related to quasiparticle transitions in a large array of tantalum transmon qubits. |
Xuegang Li ; Junhua Wang ; Huikai Xu ; Yaoyao Jiang ; Chuhong Yang ; Tang Su ; Chenlu Wang ; Zhenyu Mi ; Weijie Sun ; Xuehui Liang ; Mo Chen ; Jiaxiu Han ; Yingshan Zhang ; Weiyang Liu ; Yulong Feng ; Wengang Zhang ; Shoukuan Zhao ; Pei Liu ; Guangming Xue ; Yirong Jin ; Haifeng Yu; |
| 819 | Multi-qubit Correlated Quasiparticle Transitions in Large Array of Tantalum Transmon Qubits: Part II Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This work focuses on observing correlated errors related to quasiparticle transitions in a large array of tantalum transmon qubits. |
Junhua Wang ; Xuegang Li ; Huikai Xu ; Yaoyao Jiang ; Tang Su ; Chuhong Yang ; Chenlu Wang ; Zhenyu Mi ; Weijie Sun ; Xuehui Liang ; Mo Chen ; Jiaxiu Han ; Yingshan Zhang ; Weiyang Liu ; Yulong Feng ; Wengang Zhang ; Shoukuan Zhao ; Pei Liu ; Guangming Xue ; Yirong Jin ; Haifeng Yu; |
| 820 | Protecting Superconducting Qubits from Quasiparticle Bursts with Phononic Filters Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The isolation of qubits from such phonons could enable the suppression of this decoherence mechanism. To investigate this we design, fabricate, and measure transmon qubits on nanomechanical resonators acting as acoustic low-pass filters. |
Leo Sementilli ; Xin HE ; Erick Romero ; Divita Gautam ; Amy Navarathna ; Warwick Bowen ; Arkady Fedorov; |
| 821 | All-photonic Gottesman-Kitaev-Preskill–qubit Repeater Using Analog-information-assisted Multiplexed Entanglement Ranking Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk I will present our proposal for using the bosonic Gottesman-Kitaev-Preskill (GKP) code in a two-way repeater architecture with multiplexing. |
Filip Rozpedek ; Kaushik Seshadreesan ; Paul Polakos ; Liang Jiang ; Saikat Guha; |
| 822 | The Generation of Photonic Graph States Using T-center Defects in Silicon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we consider the experimental potential of generating one- and two-dimensional cluster states using T-centers. |
Arshag Danageozian ; Sophia Economou; |
| 823 | Efficient Classical Simulation of Resource States for Fusion-Based Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce protocols for improving the fidelity and efficiency performance of the classical model when producing FBQC resource states. |
Brian La Cour ; Andrew Lanham; |
| 824 | Steganographic Continuous Variable Entanglement Sharing and Quantum Communication Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we will demonstrate that the same channel may be used for the transmission of continuous variable entanglement, even in the presence of an eavesdropper with significant capabilities. |
Bruno Avritzer ; Todd Brun; |
| 825 | Entanglement Distillation of Bosonic Qudits Encoded in Two Cavities Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a protocol to distill a noisy state with a large amount of entanglement between two cavities into a lower-dimensional high-fidelity entangled state, using operations native to the bosonic systems. |
Shoham Jacoby ; Rotem Arnon-Friedman ; Serge Rosenblum; |
| 826 | Majorization Theoretical Approach to Gaussian Entanglement Enhancement Via Local Filtration Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study how to enhance the entanglement of a two-mode squeezed vacuum (TMSV) state by using local filtration operations. |
Zacharie Van Herstraeten ; Nicolas Cerf ; Saikat Guha ; Christos Gagatsos; |
| 827 | Pilot-reference-free Continuous-variable Quantum Key Distribution with Efficient Decoy-state Analysis Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Also, the transmission of strong reference pulses undermines the security and complicates the experiments. To tackle these two problems, we present a time-bin-encoding CV protocol with a simple phase-error-based security analysis valid under general coherent attacks. |
Pei Zeng ; Anran Jin ; Xingjian Zhang ; Liang Jiang ; Richard Penty; |
| 828 | Extracting Photonic Graph States from Weighted Graphs Using Single-qubit Measurements Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a protocol where we extract perfect graph states from weighted graph states by using a few single-qubit measurements via entanglement concentration. |
Rafail Frantzeskakis ; ChunJun Cao ; Edwin Barnes ; Sophia Economou; |
| 829 | Minimizing Matter Qubits and Entangling Gates in Photonic Resource State Generation Schemes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We analyze various emission orderings for photonic resource states and find efficient deterministic protocols for their generation. |
Nishad Manohar ; Evangelia Takou ; Edwin Barnes ; Sophia Economou; |
| 830 | Deterministic Generation of Two-dimensional Cluster States of Itinerant Microwave Photonic Qubits, Part 1: Generation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present a device capable of emitting large-scale entangled microwave photonic states in two dimensions. |
James O’Sullivan ; Aleksandr Grigorev ; Kevin Reuer ; Alonso Hernandez Anton ; Xi Dai ; Christoph Hellings ; Graham Norris ; Alexander Flasby ; Dante Colao Zanuz ; Daniel Malz ; Jean-Claude Besse ; Christopher Eichler ; Andreas Wallraff; |
| 831 | Deterministic Generation of Two-dimensional Cluster States of Itinerant Microwave Photonic Qubits, Part 2: Characterization Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: While the generation of such states has been demonstrated using continuous-variable encoding, deterministic protocols with discrete-variable encoding remain limited to only a few entangled photonic qubits. Here, we develop a protocol for generating and characterizing large-scale entangled two-dimensional cluster states of such qubits. |
Aleksandr Grigorev ; James O’Sullivan ; Kevin Reuer ; Alonso Hernandez Anton ; Xi Dai ; Christoph Hellings ; Graham Norris ; Alexander Flasby ; Dante Colao Zanuz ; Daniel Malz ; Jean-Claude Besse ; Christopher Eichler ; Andreas Wallraff; |
| 832 | Frequency-tunable Generation of A Shaped Microwave Photon Using A Fixed-frequency Transmon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our work provides a technique without additional flux lines to tune circuit frequencies, which leads to hardware-efficient quantum communication. |
Takeaki Miyamura ; Yoshiki Sunada ; Zhiling Wang ; Jesper Ilves ; Kohei Matsuura ; Yasunobu Nakamura; |
| 833 | A Chip-scale Source of Entangled Microwave and Optical Photonic Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate a chip-scale source of entangled microwave and optical photonic qubits. |
Srujan Meesala ; David Lake ; Steven Wood ; Piero Chiappina ; Changchun Zhong ; Andrew Beyer ; Matthew Shaw ; Liang Jiang ; Oskar Painter; |
| 834 | Quantum Characterization and Control Using Continuous Weak Measurements Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This functionality has been used to faithfully reconstruct individual quantum trajectories in isolated qubits and in entangled pairs coupled to a Markovian bath. We now extend these techniques to execute more complex quantum information processing tasks including tracking non-Markovian dynamics, continuous quantum error correction, and Hamiltonian reconstruction in superconducting circuits. |
Irfan Siddiqi; |
| 835 | Thermodynamics of Quantum Trajectories and Its Implementation on A Quantum Computer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: These machines yield a useful environment for research on quantum systems and dynamics. Building on this opportunity, we investigate open-system dynamics that are simulated on a quantum computer by coupling a system of interest to an ancilla. |
Igor Lesanovsky; |
| 836 | Simulating Complex, Stochastic Processes with Quantum Physics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk I will give a brief an introduction to computational mechanics and statistical complexity as well as their extension to quantum memory. |
Felix Binder ; Thomas Elliott ; Chengran Yang ; Andrew Garner ; Jayne Thompson ; Mile Gu; |
| 837 | Time-series Quantum Reservoir Computing with Quantum Measurements Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: A challenging example is (classical) time-series processing such as speech recognition and chaotic series prediction and the search for enhanced data processing capabilities is driving research into quantum approaches. |
Roberta Zambrini; |
| 838 | Thermodynamic Unification of Optimal Transport Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will introduce a thermodynamic framework for discrete optimal transport, which will illustrate the analogous relationship between stochastic thermodynamics and optimal transport within discrete-state systems. |
Tan Van Vu ; Keiji Saito; |
| 839 | A 6-Qubit Electron Spin Quantum Computer in The Cloud Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present the latest results on the functionality and performance of the system, which is freely accessible to everyone. |
Richard Versluis ; Nodar Samkharadze ; Jasper Winters ; Yoram Vos ; Damien Crielaard ; Pieter Eendebak ; Tumi Makinwa ; Önder Gül ; Rick Wasserman ; Chris Elenbaas ; Olaf Schusler ; Amir Sammak ; Larysa Tryputen ; Saurabh Karwal ; David Michalak ; Sergey Amitonov ; Giordano Scappucci ; Peter Verhoeff ; Lieven Vandersypen; |
| 840 | Automated Calibrations in 6-Qubit Quantum Dot Spin Devices in Silicon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will discuss the tune-up and automated calibration techniques utilized in our new six-qubit device [1] based on electron spins in silicon. |
Damien Crielaard ; Pieter Eendebak ; Rick Wasserman ; Önder Gül ; Tumi Makinwa ; Yoram Vos ; Larysa Tryputen ; Saurabh Karwal ; Sergey Amitonov ; David Michalak ; Amir Sammak ; Harold Meerwaldt ; Daniël van der Velde ; Napoleon Cornejo Bolaños ; Michiel Haye ; Sander de Snoo ; Giordano Scappucci ; Lieven Vandersypen ; Christiaan Hollemans ; Jasper Winters ; Peter Verhoeff ; Richard Versluis ; Nodar Samkharadze; |
| 841 | The Dispersive Signature of Pauli Spin Blockade Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we report on the direct observation of PSB in a gate-dispersively sensed hole double quantum dot [Eggli et al, arXiv, 2303.029339]. |
Rafael Eggli ; Simon Svab ; Taras Patlatiuk ; Stefano Bosco ; Miguel Carballido ; Pierre Chevalier Kwon ; Ang Li ; Erik P. A. M. Bakkers ; Richard Warburton ; Daniel Loss ; Andreas Kuhlmann ; Dominik Zumbuhl; |
| 842 | Semiconductor Qubits on The Move Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To this end, we develop an extended system comprising 10 quantum dot qubits, where we have control over the interdot tunnel coupling and the detuning of each of the individual quantum dots. |
Cecile Yu; |
| 843 | Two-qubit Logic Between Distant Spins in Silicon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we report long-range two-qubit logic using an on-chip superconducting resonator. |
Jurgen Dijkema ; Xiao Xue ; Patrick Harvey-Collard ; Maximillian Rimbach-Russ ; Sander de Snoo ; Guoji Zheng ; Amir Sammak ; Giordano Scappucci ; Lieven M. Vandersypen; |
| 844 | High-fidelity Operation of Encoded Spin Qubits on Intel Tunnel Falls Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present our first results on high-fidelity spin qubit control based on the EO encoding, as well as continued progress in high-fidelity operation of single-spin qubits. |
Felix Borjans ; Mateusz Madzik ; Matthew Curry ; Florian Luthi ; Elliot Connors ; Joelle Corrigan ; Rostyslav Savytskyy ; Thomas Watson ; Simon Schaal ; Daniel Keith ; Lester Lampert ; Josh Ziegler ; Mick Ramsey ; Gian Giacomo Guerreschi ; Nader Khammassi ; Bishnu Patra ; Fahd Mohiyaddin ; Roza Kotlyar ; Jeanette Roberts ; Pradeep Dubey ; Stefano Pellerano ; Stephanie Bojarski ; Nathaniel Bishop ; James Clarke; |
| 845 | Single Electron Router in Silicon Quantum Dot Array Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We showed that accurate routing operation at 100 MHz can be achieved by applying a sinusoidal signal synchronized with the single-electron pump to the switching gate pair in the branching path and to the assist gate in front of it and adjusting their phases. |
Takeru Utsugi ; Takuma Kuno ; Lee Noriyuki ; Ryuta Tsuchiya ; Toshiyuki Mine ; Digh Hisamoto ; Shinichi Saito ; Mizuno Hiroyuki; |
| 846 | Oral: Numerical Modeling of Decoherence of Entangled Spin Qubits During Shuttling Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a new approach for describing the shuttled entangled qubits, employing the concept of random Ornstein-Uhlenbeck sheet, a Gaussian stochastic field explicitly denependent on time and space coordinates. |
Yuning Zhang ; Aleksandr Mokeev ; Viatcheslav Dobrovitski; |
| 847 | Resistive Silicon Spin Qubit Interconnects As Platforms for Mesoscopic Physics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We consider an interconnect between two dots consisting of a quasi-1D channel created by a resistive topgate. |
Christopher White ; Anthony Sigillito ; Michael Gullans; |
| 848 | Shuttling Electrons Between Si/SiGe Quantum Dots Using A Resistive Topgate Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we will propose an alternative architecture based on resistive top gates defined in a single layer of lithography. |
Seongwoo Oh ; Noah Johnson ; Mridul Pushp ; Robert Spivey ; Christopher White ; Stephen Lyon ; Michael Gullans ; Anthony Sigillito; |
| 849 | Valley Splitting and Spin Shuttling in Si/SiGe Heterostructures Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we examine how the valley degree of freedom poses challenges for spin shuttling in Si/SiGe heterostructures. |
Merritt Losert ; Max Oberländer ; Julian Teske ; Lars Schreiber ; Hendrik Bluhm ; Susan Coppersmith ; Mark Friesen; |
| 850 | Coherent Electron Spin Shuttling in An Industrially-manufactured Si/SiGe Triple Quantum Dot Device Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we demonstrate coherent shuttling of an electron spin in an isotopically enriched, industrially-manufactured Si/SiGe triple-QD device. |
Natalie Foster ; Jacob Henshaw ; Martin Rudolph ; Matthew Curry ; Lester Lampert ; Dwight Luhman ; Ryan Jock; |
| 851 | Near-field THz Spectroscopy of Tantalum Films for Superconducting Quantum Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will show how terahertz Scanning Near-field Optical Microscopy (SNOM) can be used to probe functional devices such as coplanar microwave resonators and inform the processing of new materials for quantum technology. |
Peter Jacobson ; Xiao Guo ; Zachary Degnan ; Julian Steele ; Eduardo Solano ; Bogdan Donose ; Karl Bertling ; Arkady Fedorov ; Aleksandar Rakić; |
| 852 | Characterization of Encapsulated Superconducting Microwave Resonators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we study the effects of encapsulation of superconducting films with non-superconducting materials. |
Aranya Goswami ; Sameia Zaman ; Andres Lombo ; Pablo Perez ; Kevin Grossklaus ; Terry Orlando ; Simon Gustavsson ; Kyle Serniak ; Joel Wang ; Jeffrey Grover ; Kevin O’Brien ; William Oliver; |
| 853 | Surface Passivation of Niobium and Aluminum Superconducting Thin-Films Using Self-Assembled Monolayers to Suppress The Growth of Oxides Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: In the development and optimization of superconducting quantum circuits, post-fabrication surface passivation of superconducting thin films is pivotal [1,2]. This research directs … |
Mohammed Alghadeer ; Omar Abdulsahib Saleh ; Khan Alam ; Saleem Rao; |
| 854 | Nb-based Superconducting Qubits with Capping Layers: Optimizing The Proximity Effect Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Recent studies within the SQMS center of transmon qubits, utilizing thin capping layers on the Nb capacitor to eliminate the RF lossy Nb oxide, have shown significant increases in the T 1 relaxation time. Such superconducting/normal metal (S/N) bilayers necessarily involve the proximity effect and we discuss how this can be optimized. |
John Zasadzinski ; Seth Rice ; Maria Iavarone; |
| 855 | Encapsulating Superconducting Circuits to Avoid Oxide-related Dielectric Loss Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation I will describe our approach to eliminate the oxide layer by encapsulating tantalum with a noble metal thin film. |
Nana Shumiya ; Ray Chang ; Matthew Bland ; Faranak Bahrami ; Russell McLellan ; Alexander Pakpour-Tabrizi ; Kevin Crowley ; Chenyu Zhou ; Kim Kisslinger ; Junsik Mun ; Rebecca Cummings ; Aswin kumar Anbalagan ; Conan Weiland ; Andrew Walter ; Mingzhao Liu ; Robert Cava ; Andrew Houck ; Nathalie de Leon; |
| 856 | Encapsulating Ta Films with Pt for Novel Josephson Junctions and Quantum Information Applications Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate a technique to encapsulate the Ta films with a Pt layer to eliminate the Ta oxide growth. |
Param Patel ; John Lyons ; Junwon Choi ; Jacob Repicky ; Chung Wa Shum ; Maria Nowicki ; Israa Yusuf ; Benjamin Hunt ; Michael Hatridge; |
| 857 | Characterization of Loss Mechanisms in High Kinetic Inductance Materials: Part 1 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To fully exploit the properties of such materials, we must better understand their loss mechanisms, and identify ways to integrate them with established superconductors like aluminum or tantalum for quasiparticle mitigation. In part 1 of this talk, we discuss fabrication techniques for building microwave resonators with these materials, and outline our approach to identifying different loss mechanisms. |
Neel Thakur ; Vishakha Gupta ; Patrick Winkel ; Peter van Vlaanderen ; Yanhao Wang ; Suhas Ganjam ; Luigi Frunzio ; Robert Schoelkopf; |
| 858 | Characterization of Loss Mechanisms in High Kinetic Inductance Materials: Part 2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To fully exploit the properties of such materials, we must better understand their loss mechanisms, and identify ways to integrate them with established superconductors like aluminum or tantalum for quasiparticle mitigation. In part 2 of this talk, we present results on devices constructed of such high-kinetic inductance materials. |
Vishakha Gupta ; Neel Thakur ; Patrick Winkel ; Peter van Vlaanderen ; Yanhao Wang ; Suhas Ganjam ; Luigi Frunzio ; Robert Schoelkopf; |
| 859 | Numerical Analysis of The Kinetic Inductance Fraction of Superconducting Thin-film Resonators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we describe a numerical approach to the calculation of kinetic inductance fraction in superconducting transmission lines that can be applied to structures with arbitrary 2D cross section and arbitrary penetration depth. |
Matthew Snyder ; Yen-An Shih ; Gabriel Spahn ; Shravan Patel ; David Harrison ; Robert McDermott; |
| 860 | Quantum Circuits Using The Disordered Superconductor WSi (Part I) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, devices based on such materials have not yet reached the simultaneous levels of high nonlinearity and low loss commonly achieved with Josephson junction-based devices. In this project, we aim to address this problem by optimizing devices based on WSi, an amorphous superconductor commonly used in single-photon detectors for its lack of grain boundaries and high-quality thin films. |
Trevyn Larson ; Sarah Garcia Jones ; Tamas Kalmar ; Sai Pavan Chitta ; Pablo Aramburu Sanchez ; Stephen Gill ; Akash Dixit ; Varun Verma ; Jens Koch ; Sae Woo Nam ; Raymond Simmonds ; Andras Gyenis; |
| 861 | Quantum Circuits Using The Disordered Superconductor WSi (Part II) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, devices based on such materials have not yet reached the simultaneous levels of high nonlinearity and low loss commonly achieved with Josephson junction-based devices. In this project, we aim to address this problem by optimizing devices based on WSi, an amorphous superconductor commonly used in single-photon detectors for its lack of grain boundaries and high-quality thin films. |
Sarah Garcia Jones ; Trevyn Larson ; Sai Pavan Chitta ; Tamas Kalmar ; Pablo Aramburu Sanchez ; Stephen Gill ; Akash Dixit ; Varun Verma ; Jens Koch ; Sae Woo Nam ; Raymond Simmonds ; András Gyenis; |
| 862 | Quantum Circuits Using The Disordered Superconductor WSi (Part III) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In part three of this three-part talk, we focus on circuit quantization of a RF-squid circuit which using a weak-link WSi junction instead of a conventional AlOx tunnel junction. |
Sai Pavan Chitta ; Trevyn Larson ; Sarah Jones ; Heli Vora ; Sae Woo Nam ; Raymond Simmonds ; Andras Gyenis ; Jens Koch; |
| 863 | Vortex Viscosity in Superconducting Granular Aluminum Resonators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: For the lowest sheet resistance samples, we find the vortex viscosity to be consistent with the conventional Bardeen-Stephen model. |
Jadrien Paustian ; Clayton Larson ; Kenneth Dodge ; B.L.T. Plourde; |
| 864 | Probing Kinetic Inductance in Thin Niobium Diselenide (NbSe2) Through Microwave Measurements Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We developed hybrid superconducting microwave resonators incorporating van der Waals (vdW) superconductors to explore the microwave (MW) response of superconducting 2D materials in the GHz regime. |
Sameia Zaman ; Joel Wang ; Miuko Tanaka ; Thomas Werkmeister ; Max Hays ; Daniel Rodan Legrain ; Aranya Goswami ; Thao Dinh ; Michael Gingras ; Bethany Niedzielski ; Hannah Stickler ; Mollie Schwartz ; Jonilyn Yoder ; Kenji Watanabe ; Takashi Taniguchi ; Terry Orlando ; Jeffrey Grover ; Simon Gustavsson ; Kyle Serniak ; Pablo Jarillo-Herrero ; Philip Kim ; William Oliver; |
| 865 | Microwave Characterization of Hybrid Superconductor-semiconductor Junction Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show microwave measurements on an S-Sm array to study microwave loss, nonlinearity, and phase slip dynamics in S-Sm junctions. |
William Strickland ; Lukas Baker ; Jaewoo Lee ; Bassel Elfeky ; William Schiela ; Krishna Dindial ; Andrea Maiani ; Jacob Issokson ; Ido Levy ; Javad Shabani; |
| 866 | Toward Implementation of Protected Charge-parity Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we describe the design, fabrication, and characterization of multi-plaquette devices that aspire to protection. |
Abigail Shearrow ; Matthew Snyder ; Bradley Cole ; Kenneth Dodge ; Yebin Liu ; Andrey Klots ; Lev Ioffe ; Britton Plourde ; Robert McDermott; |
| 867 | Electronic Capacitance in Tunnel Junctions for Protected Charge-parity Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This electronic capacitance contributes to the overall junction capacitance and poses a significant obstacle in creating junctions for new charge-parity qubits with optimal protection. This talk will describe measurements of electronic capacitance in small tunnel junctions and strategies for mitigating this in future charge-parity topologically protected devices. |
Bradley Cole ; Kenneth Dodge ; Yebin Liu ; Abigail Shearrow ; Matthew Snyder ; Andrey Klots ; Lev Ioffe ; Robert McDermott ; B.L.T. Plourde; |
| 868 | Geometrical Approach for Designing Novel Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Relying on the connection between symplectic geometry, graph theory, and circuit theory, we describe a Hamiltonian formulation and quantization of non-dissipative electrodynamic circuits. |
András Gyenis; |
| 869 | Design and Characterization of The Heavy Double Cooper-Pair Tunneling Element Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we report the implementation of an inductively shunted double-Cooper-pair junction in the heavy regime, with circuit parameters tailored to enhance the novel effect. |
Hyunseong Kim ; Long Nguyen ; Dat Thanh Le ; Christian Juenger ; Trevor Chistolini ; Bingcheng Qing ; Clarke Smith ; Sai Pavan Chitta ; Tom Stace ; Jens Koch ; David Santiago ; Irfan Siddiqi; |
| 870 | Exploring The Superconducting Grid-states Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Alternatively, the information can be protected if it is hardware-encoded into the grid-like eigenstates of a superconducting circuit with dual nonlinearity in charge and phase. Here, we present an approach to implement such a qubit by combining the quasicharge element with the double-Cooper-pair tunneling element. |
Long Nguyen ; Hyunseong Kim ; Dat Thanh Le ; Christian Juenger ; Trevor Chistolini ; Clarke Smith ; Sai Pavan Chitta ; Tom Stace ; Jens Koch ; David Santiago ; Irfan Siddiqi; |
| 871 | Multimode Effects in A Unimon Circuit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce a new numerical model that efficiently incorporates the multimode effects for a typical unimon circuit [2]. |
Sasu Tuohino ; Vasilii Vadimov ; Wallace Teixeira ; Tommi Malmelin ; Matti Silveri ; Mikko Möttönen; |
| 872 | High-gap Josephson Junctions for Single-film Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The talk will discuss design considerations for constriction-based qubits and present preliminary measurements on junctions fabricated in a single lithographic step without shadow evaporation. |
Charlotte Boettcher ; Thomas Connolly ; Pavel Kurilovich ; Heekun Nho ; Spencer Diamond ; Danqing Wang ; Leonid Glazman ; Hong Tang ; Michel Devoret; |
| 873 | Metrology to Enable Higher Temperature/Frequency Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To operate at higher temperatures and remain above the thermal background, qubits must operate at higher frequencies where the appropriate materials, designs, and metrology need to be developed and characterized. In this presentation, we discuss the measurement science tools we are developing and plan to use to quantify sources of loss and decoherence in resonators and qubits at frequencies above ten gigahertz. |
Adam Sirois ; Manuel Castellanos-Beltran ; Peter Hopkins ; Samuel Benz ; Grant Giesbrecht ; Nathan Flowers-Jacobs; |
| 874 | A Millimeter-wave Qubit Cooled with Helium-4 Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Superconducting qubits are a promising platform for quantum experiments studying light-matter interactions in the strong coupling regime. Current microwave qubits are cooled to … |
Alexander Anferov ; Fanghui Wan ; Shannon Harvey ; Jonathan Simon ; David Schuster; |
| 875 | Superconducting Qubits at Elevated Frequencies Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we study the properties of transmon-type superconducting qubits based on niobium electrodes and standard Al/AlOx/Al junctions with resonance frequencies up to 20GHz. |
Ivan Tsitsilin ; Niklas Bruckmoser ; Leon Koch ; Johannes Schirk ; Daniil Bazulin ; Franz Haslbeck ; Christian Schneider ; Stefan Filipp; |
| 876 | Tunable On-chip Readout Resonator in The W-band Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Hence, the goal of this work is to demonstrate easy tunability of the resonator using the Meissner effect. |
Debadri Das ; Kevin Multani ; Adham Naji ; Amir Safavi-Naeini ; Emilio Nanni; |
| 877 | Towards Simulating Molecular Excited States on Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will outline several methods developed for computing excited states on a quantum computer. |
Ayush Asthana; |
| 878 | Quantum Equation of Motion in Active Spaces for Computing Molecular Excitation Energies in Near-Term Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: A major question in the field is: how might we use imperfect near-term quantum computers to solve problems of practical value? |
Phillip W. K. Jensen ; Stephan P. A. Sauer ; Sonia Coriani ; Jakob Kongsted ; Karl Michael Ziems ; Peter Reinholdt ; Erik Rosendahl Kjellgren; |
| 879 | Excited-CAFQA: A Classical Simulation Bootstrap for The Variational Estimation of Molecular Excited States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Motivated by CAFQA’s success, we propose Excited-CAFQA initialization for Variational Quantum Deflation (VQD), a quantum algorithm that extends VQE by allowing the computation of excited states. |
Bikrant Bhattacharyya ; Gokul Subramanian Ravi; |
| 880 | Fault-tolerant Quantum Algorithm for Symmetry-adapted Perturbation Theory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Future work should consider developing a framework for second-order SAPT energy contributions, studying resource requirements of basis sets with diffuse functions, and exploring alternative techniques. |
Nikolaj Moll ; Matthias Degroote ; Raffaele Santagati ; Michael Streif ; Christofer Tautermann ; Cristian Cortes ; Matthias Loipersberger ; Robert Parrish ; Sam Morley-Short ; William Pol ; Sukin Sim ; Mark Steudtner; |
| 881 | Quantum Chemistry on A Budget: Resource Estimation and Measurement Optimization for Near-term VQE Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: A variety of schemes have been proposed to try to lower the number of measurements needed to perform this optimization. In this work, we use finite-shots simulation to estimate the benefit of each of these and their feasibility for a variety of “benchmark” molecular systems. |
Katharine Hyatt; |
| 882 | Efficient Quantum Monte Carlo Algorithm on Quantum Computers with Robust Matchgate Shadows Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we investigate an improved QC-QMC scheme utilizing the recently developed Matchgate shadows technique [2], which removes the exponential bottleneck. |
Benchen Huang ; Tim (Yi-Ting) Chen ; Brajesh Gupt ; Martin Suchara ; Samuel McArdle ; Giulia Galli; |
| 883 | Mapping The Hubbard Model to Self-consistent Spin Models: A Quantum-embedded Jordan-Wigner Transformation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This work introduces a quantum-embeded Jordan-Wigner transformation which preserves the ground-state properties of fermionic Hamiltonians via the resolution of the representability problem within a variational many-body ansatz. |
Zhengqian Cheng ; Chris Marianetti; |
| 884 | Anderson Impurity Model Solver Integrating Tensor Network Methods with Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present a hybrid quantum/classical algorithm where the first step makes use of tensor network solvers to compute the ground state for the AIM system as well as a quantum circuit representation using classical computing resources. |
Lachlan Lindoy ; Francois Jamet ; Connor Lenihan ; Abhishek Agarwal ; Enrico Fontana ; Ivan Rungger; |
| 885 | Sampling Based Quantum Training of Arbitrary Spin-graphs Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Machine Learning algorithms trainable on a quantum device are fast emerging as a robust alternative to the classical ones in a wide variety of tasks as they exploit the power of quantum devices. Of particular interest are spin-graphs which has been recently proven to offer an expressive and efficient neural-network based representation of quantum states of a given system.1–3 In this work, we show that arbitrary such graphs can be trained on a quantum device using a sampling technique that is capable of demonstrating quantum advantage. |
Manas Sajjan ; Vinit Singh ; Sabre Kais; |
| 886 | Intrinsic Error Mitigation in The Cascaded Variational Quantum Eigensolver Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present results obtained using the Cascaded Variational Quantum Eigensolver (CVQE) algorithm. |
John Stenger ; Stephen Hellberg ; Daniel Gunlycke; |
| 887 | Surrogate Optimization for Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Using an approximate state vector simulator, we efficiently calculate an approximate Hessian, fed as an input for a detailed quantum circuit simulator. |
Erik Gustafson ; Juha Tiihosen ; Diana Chamaki ; Wayne Mullinax ; David Bernal Neira ; NICOLAS SAWAYA ; Filip Maciejewski ; Joonho Kim ; Norm Tubman ; Jaron Krogel; |
| 888 | Schrödinger As A Quantum Programmer: Estimating Entanglement Via Steering Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we develop a quantum algorithm that tests for and quantifies the separability of a general bipartite state, by making use of the quantum steering effect, the latter originally discovered by Schrödinger. |
Aby Philip ; Soorya Rethinasamy ; Vincent Russo ; Mark Wilde; |
| 889 | The Adjoint Is All You Need: Characterizing Barren Plateaus in Quantum Ansätze Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Using tools from the representation theory of compact Lie groups, we formulate a theory of Barren Plateaus for parameterized quantum circuits whose observables lie in their dynamical Lie algebra (DLA), a setting that we term Lie Algebra Supported Ansatz (LASA). |
Enrico Fontana ; Dylan Herman ; Shouvanik Chakrabarti ; Niraj Kumar ; Romina Yalovetzky ; Jamie Heredge ; Shree Hari Sureshbabu ; Marco Pistoia; |
| 890 | Optimally Band-Limited Noise Filtering and Crosstalk Mitigation for Single Qubit Gates in Multi-Qubit Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we construct optimized control sequences that mitigate temporally correlated noise and quantum crosstalk during the implementation of simultaneous single-qubit gates on multi-qubit systems. |
Kevin Fernando ; Gregory Quiroz ; Yasuo Oda; |
| 891 | Designing Crosstalk Robust Gate Sets Using Optimal Control Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report the success of our approach by running dynamical simulations of circuits across a suite of benchmark quantum algorithms. |
Andy Goldschmidt ; Gregory Quiroz ; Victor Zhou ; Frederic Chong; |
| 892 | Accurate Real-time Feedback Quantum Control with Reinforcement Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, continuous measurement-based feedback control (MBFC) faces a major challenge due to measurement noise, which makes it difficult to accurately and quickly train RL agents and achieve accurate control over noisy measurement data[1]. Here we present a method for real-time stochastic state estimation that overcomes this hurdle and enables noise-resistant tracking of the conditional dynamics, including the full density matrix of the quantum system[2]. |
Sangkha Borah ; Bijita Sarma; |
| 893 | Quantum Gate Design with Machine Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we exploit the power of ML to design quantum gates that uses the hardware-level leakage errors to one’s advantage. |
Bijita Sarma ; Michael Hartmann; |
| 894 | Automating The Design of Robust Quantum Control Using Geometric Space Curves Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we show how to streamline the process of constructing suitable curves by working in the spin vector representation and by leveraging the machinery of control points and Bezier curves. |
Evangelos Piliouras ; Grayson Derossi ; Dennis Lucarelli ; Edwin Barnes; |
| 895 | Quantum Optimal Control of Superconducting Qubits Based on Machine-learning Characterization Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, these model-free approaches require large data sets and yield no other useful information beyond the specific control task it was designed for. Here, we propose an experimentally simple approach to realize optimal quantum controls tailored to the device parameters and environment while explicitly characterizing this quantum system. |
Elie Genois ; Noah Stevenson ; Noah Goss ; Irfan Siddiqi ; Alexandre Blais; |
| 896 | Title:Invited: Quantum Control Optimization for Near-Term Quantum Simulation and Variational Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: I will review various challenges towards designing extremely high-fidelity quantum gates for parameterized single and two-qubit control optimization and the opportunities it brings to the new paradigm of hybrid digital and analog quantum simulations. |
Murphy Yuezhen Niu; |
| 897 | Frequency- and Amplitude- Modulated Pulses for Single- and Two-Qubit Gates Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce a method of pulse design for single- and two-qubit gates using optimal quantum control schemes in an extended Hilbert space leveraging Floquet theory. |
Qi Ding ; Agustin Di Paolo ; Réouven Assouly ; Petros Boufounos ; Jeffrey Grover ; Kyle Serniak ; William Oliver ; Alan Oppenheim; |
| 898 | Frequency Patches for High-fidelity Quantum Control Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a perturbative approach for high-fidelity quantum control, which is based on the Floquet-Magnus expansion of an oscillatory Hamiltonian. |
Qi-Ming Chen ; Aarne Keränen ; Mikko Möttönen; |
| 899 | FPGA-based Machine Learning for In-situ Qubit State Discrimination on QubiC Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This model not only swiftly identifies the current state of the qubit but also delivers an estimation of the readout classification accuracy. |
Yilun Xu ; Neel Vora ; Gang Huang ; Neelay Fruitwala ; Abhi Rajagopala ; Jan Balewski ; Ravi Naik ; Kasra Nowrouzi ; David Santiago ; Irfan Siddiqi; |
| 900 | Suppressing Spurious Transitions Using Spectrally Balanced Derivative Pulse Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we propose and demonstrate a practical pulse-shaping technique extended from DRAG for suppressing spurious transition between qubits in a superconducting quantum processor. |
Ruixia Wang ; Zhikun Han ; Yang Gao ; Jiayu Ding ; Fei Yan ; Haifeng Yu; |
| 901 | Improving Algorithmic Performance Using Hardware Efficient Gates Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present an efficient method for optimizing a selected set of system-wide entangling gates. |
Yulun Wang ; Ashish Kakkar ; Samuel Marsh ; Hank Greenburg ; Yuval Baum ; Pranav Mundada; |
| 902 | Logical Quantum Processor Based on Reconfigurable Atom Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we report the realization of a programmable quantum processor based on encoded logical qubits. |
Dolev Bluvstein; |
| 903 | Fault-tolerant Logical State Teleportation for Neutral Atom-based Surface Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we investigate the teleportation fidelity of neutral atom-based surface codes states under biased-erasure noise. |
Kaavya Sahay ; Jahan Claes ; Shilin Huang ; Shruti Puri; |
| 904 | Efficient LDPC Codes: Simulating Generalized Bicycle Codes for Atom Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we present a protocol for efficiently implementing stabilizer circuits of generalized bicycle codes in atom array devices. |
Joshua Viszlai ; Sophia Lin ; Junyu Liu ; Natalia Nottingham ; Willers Yang ; Jonathan Baker ; Frederic Chong; |
| 905 | Empirical Overhead of The Adapted Surface Code on Defective Qubit Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We find that an optimal choice of chiplet size, based on the defect rate and target performance, is essential to limiting any additional error correction overhead due to defects. |
Sophia Lin ; Joshua Viszlai ; Kaitlin Smith ; Gokul Subramanian Ravi ; Charles Yuan ; Frederic Chong ; Benjamin Brown; |
| 906 | Analysis of Imperfect Erasure Detection on Surface Code Performance Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Consequently, in this work we examine the impact of our delayed erasure noise model on the performance of fault-tolerant surface code quantum memory. |
Kathleen Chang ; Shraddha Singh ; Kaavya Sahay ; Jahan Claes ; Shruti Puri; |
| 907 | Integrating Leakage Reduction Units in Quantum Error Correction Using The Surface Code Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present experimental progress towards integrating leakage reduction units based on parametric flux modulation [1] in quantum error correction experiments using a 17-qubit superconducting circuit. |
Luca Hofele ; Nathan Lacroix ; Jakob Ekert ; Michael Kerschbaum ; Ilya Besedin ; Ants Remm ; Colin Scarato ; Christoph Hellings ; Dante Colao Zanuz ; Mohsen Bahrami Panah ; Andreas Wallraff; |
| 908 | Overcoming Leakage in Quantum Error Correction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report a tenfold reduction in the steady-state leakage population of the data qubits encoding the logical state and an average leakage population of less than 1 × 10 −3 throughout the entire device. |
Kevin Miao ; Matthew McEwen ; Juan Atalaya ; Daniel Sank ; Yu Chen; |
| 909 | Optimizing Quantum Error Correction Experiments with Flux-tunable TransmonsPart 1: Experiment Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This two-part series presents the optimization of quantum error correction (QEC) experiments on a superconducting quantum processor with 17 flux-tunable transmons. |
Hany Ali ; Jorge Marques ; Sean van der Meer ; Yuejie Xin ; Matvey Finkel ; Martijn Veen ; Marc Beekman ; Wouter Vlothuizen ; Nadia Haider ; Leonardo DiCarlo; |
| 910 | Optimizing Quantum Error Correction Experiments with Flux-tunable TransmonsPart 2: Higher Accuracy Error Decoding Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this second part, we present results from running small surface code error correction experiments on a 17-qubit flux-tunable transmon, with fixed-frequency couplers, quantum computer. |
Ophelia Crawford ; Joonas Majaniemi ; Marc Serra-Peralta ; Jorge Marques ; Hany Ali ; David Byfield ; Boris Varbanov ; Leonardo DiCarlo ; Barbara Terhal ; Earl Campbell; |
| 911 | Quantum Error Correction Experiments on A Superconducting Quantum Computer with An Integrated Hardware Decoder Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate the results of experiments run on Rigetti’s quantum processors using the surface code and Riverlane’s hardware decoder integrated in Rigetti’s control stack. |
Laura Caune ; Luka Skoric ; Nick Blunt ; Kauser Johar ; Kenton Barnes ; Tomasz Bialas ; Okan Buğdaycı ; Earl Campbell ; Ophelia Crawford ; Gyorgy Geher ; Neil Gillespie ; Alexander Gramolin ; Hari Krovi ; Elisha Siddiqui Matekole ; Archibald Ruban ; Canberk Topal ; Jimmy McDaniel ; Glenn Jones ; Andrew Patterson ; Alexander Hill ; Stefano Poletto ; Kalan Snyder ; Nicolas Didier; |
| 912 | Modeling The Performance of The Surface Code with Non-uniform Error Distribution: Part 1 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe a simple bound for error rates in surface code memory experiments. |
Yuri Lensky ; Volodymyr Sivak ; Kostyantyn Kechedzhi ; Igor Aleiner; |
| 913 | Modeling The Performance of The Surface Code with Non-uniform Error Distribution: Part 2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We analyze the dependence of the code performance on the distribution of the physical error rates in the system, and develop a simple and fast predictive model of the logical error rate. |
Volodymyr Sivak ; Michael Newman ; Cody Jones ; Henry Schurkus ; Dvir Kafri ; Yuri Lensky ; Paul Klimov ; Kostyantyn Kechedzhi ; Vadim Smelyanskiy; |
| 914 | Oral: Realizing The Nishimori Transition Across The Error Threshold for Constant-depth Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, using a measurement-based protocol on a 127 superconducting qubit device, we study the generation of the simplest long-range order — Ising order, familiar from Greenberger-Horne-Zeilinger (GHZ) states and the repetition code — on 54 system qubits. |
Edward Chen ; Guo-Yi Zhu ; Ruben Verresen ; Alireza Saif ; Elisa Bäumer ; David Layden ; Nathanan Tantivasadakarn ; Guanyu Zhu ; Sarah Sheldon ; Ashvin Vishwanath ; Simon Trebst ; Abhinav Kandala; |
| 915 | Variational Quantum Metrology for Multiparameter Estimation Under Noise Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce a hybrid quantum-classical variational approach designed to elevate precision in quantum metrology. |
Bin Ho Le ; Trung Kien Le ; Hung Q. Nguyen; |
| 916 | Exploring Measurement and Feedforward-Assisted Quantum Metrology Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we examine the possible role of mid-circuit measurements and feedforward in a quantum metrology context. |
Jin Ming Koh ; Lorcán Conlon ; Dax Enshan Koh ; Syed Assad ; Jayne Thompson ; Yunlong Xiao ; Jun Ye; |
| 917 | Analysis of The Optimal Solution of Quantum Metrology with Quantum Decoherence Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Optimal control theory is applied to the quantum parameter estimation in the presence of decoherence. |
Chungwei Lin ; Dries Sels; |
| 918 | Scaling of Quantum Fisher Information for Quantum Exceptional Point Sensors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our work builds the connection among three important fields: non-Hermitian exceptional point dynamics, quantum sensing, and entangled squeezed states, and may find important applications in quantum sensing and quantum non-Hermitian physics. |
Chunhui Liu ; Fu Li ; Shengwang Du ; Jianming Wen ; Lan Yang ; Chuanwei Zhang; |
| 919 | Quantum Metrology with Finite-energy GKP States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Moreover, quantum error correction has been proposed as a tool to enhanced the accuracy of metrology protocols [2]. Here, we explore the connection between these concepts and study the use of stabilized quantum error corrected finite-energy GKP states as quantum sensors. |
Lautaro Labarca ; Royer Baptiste ; Alexandre Blais; |
| 920 | Sensing Applications Utilizing The Quantum Bayesian Minimum Square Error Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We consider sensing of loss rate and optical phase. |
Boyu Zhou; |
| 921 | Variational Quantum Sensing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, towards protocol adaptivity, we frame each step of a quantum sensing protocol as a variational learning problem. |
Benjamin MacLellan ; Piotr Roztocki ; Stefanie Czischek ; Roger Melko; |
| 922 | Optimal Omni-directional Field Sensing with Entangled States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, if the rotation angle is unknown an optimal single-qubit sensor cannot be prepared. In this work, inspired by simulations of closed time-like curves, we circumvent this limitation, achieving the optimal quantum Fisher information about a rotation angle for any rotation axis. |
Xingrui Song ; Chandrashekhar Gaikwad ; Flavio Salvati ; David Arvidsson-Shukur ; Nicole Yunger Halpern ; Kater Murch; |
| 923 | Mitigating Markovian Noise in DC Magnetometry Via Zero-Noise Extrapolation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: While ZNE has been extensively studied in quantum computation, it has not been considered in the domain of quantum sensing. In this work, we adapt ZNE to the sensing problem and investigate its effectiveness in mitigating noise in DC magnetometry. |
Zackary White ; Gregory Quiroz ; John Van Dyke; |
| 924 | Improving Quantum Sensors Subject to Correlated Noise Using Zero-noise Extrapolation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We apply zero-noise extrapolation (ZNE), a well-known error mitigation technique for noisy, intermediate scale quantum computers, to the domain of quantum sensing. |
John Van Dyke ; Zackary White ; Gregory Quiroz; |
| 925 | Achieving The Heisenberg Limit with Dicke States in Noisy Quantum Metrology Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we show how Dicke states can be used to surpass the standard quantum limit and achieve the Heisenberg limit in open quantum systems. |
zain Saleem ; Michael A. Perlin ; Anil Shaji ; Stephen Gray; |
| 926 | Constraints of Average Hamiltonian Theory for Quantum Sensing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we discuss the accuracy of AHT for (1) predictions of unitary evolution, and (2) determination of the effective gyromagnetic ratio for pulsed magnetometry protocols. |
Jner Tzern Oon ; Connor Hart ; Ronald Walsworth; |
| 927 | Optimal Strategies in Post-Selected Quantum Metrology Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Post-selected quantum metrology uses filters to allow detectors to operate at lower intensities without reducing the input rate of quantum information about unknown parameters of interest [1, 2, 3]. In this talk, I will present the optimal family of filters that achieves this lossless compression of information [4]. |
Flavio Salvati ; Wilfred Salmon ; Crispin Barnes ; David Arvidsson-Shukur; |
| 928 | Heisenberg-limited Metrology with Perturbing Interactions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that it is possible to perform Heisenberg-limited metrology on GHZ-like states, in the presence of generic spatially local interactions during the measurement process. |
Chao Yin ; Andrew Lucas; |
| 929 | Improved Scaling of Variational Quantum Metrology with Midcircuit Adaptivity Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Recently, midcircuit measurements have been demonstrated in neutral atom array, superconducting qubit, and trapped ion systems. Inspired by this, we show that with only a few rounds of adaptivity variational schemes with only a single state preparation twist and no measurement twists can achieve significantly improved scaling. |
Tyler Thurtell ; Shravan Shravan ; Akimasa Miyake; |
| 930 | Data Center Quantum Networks: From Experiment to System Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: I will present our testbed network, which begins with spontaneous parametric down conversion (SPDC) entanglement sources and switched photon measurement nodes and will eventually include nodes with memory and ultimately connect full quantum computers. |
Rodney Van Meter; |
| 931 | Entanglement Routing Techniques for Quantum Communication Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we formally define the entanglement routing problem, and analyze and categorize the main approaches to address it, drawing comparisons to and inspiration from classical network routing strategies where applicable. |
Michael Cubeddu ; Amar Abane; |
| 932 | Entangled State Quantum Pulse Position Modulation for Communication Security Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present the Quantum Pulse Position Modulation (QPPM) protocol, which is an entanglement-based communications format approach designed to enhance the security of pulse position modulation (PPM) in optical communications. |
Tahereh Rezaei ; Amir Kalev ; Jonathan Habif; |
| 933 | Nonclassicality in Quantum Communication Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we introduce nonclassicality as a quantifier of quantum advantage, which generalizes standard Bell nonlocality to signaling systems. |
Brian Doolittle ; Felix Leditzky ; Eric Chitambar; |
| 934 | Requirements for Deterministic Quantum Teleportation Over Metropolitan and Long-Distance Backbone Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our work sheds light on the trade-offs between different hardware improvements that could be made in order to realize quantum teleportation in deployed quantum networks. |
Soubhadra Maiti ; Guus Avis ; Stephanie Wehner; |
| 935 | Time-Constrained Local Quantum State Discrimination Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This problem is motivated by time-sensitive cryptographic protocols like quantum position verification (QPV), but also by a gap in our basic understanding of the interplay between quantum mechanics, locality, and communication. We present substantial progress on closing this gap. |
Ian George ; Rene Allerstorfer ; Philip Verduyn Lunel ; Eric Chitambar; |
| 936 | Classical and Quantum Distributed Algorithms for The Survivable Network Design Problem Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe algorithms that are heuristics for the general problem but give concrete approximation bounds under certain parameterizations of the SNDP, which in particular hold for the three aforementioned problems that SNDP generalizes. |
David Bernal Neira ; Phillip Kerger ; Eleanor Rieffel; |
| 937 | On Fidelity-Preserving Entanglement Purification Protocols Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we introduce the fidelity-preserving (FP) property for EPPs where the output fidelity is at least as high as the highest input fidelity. |
Allen Zang ; Xinan Chen ; Eric Chitambar ; Martin Suchara ; Tian Zhong; |
| 938 | Optimizing Quantum-repeater Placement in A 2D Plane Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study the optimal placement of repeaters and the dependence of network performance on the number of repeaters in the network. |
Guus Avis ; Stefan Krastanov; |
| 939 | Device-Independent Randomness Amplification Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we combine two recent developments — a theoretical protocol implementing the concept of randomness amplification with realistic devices and only a two-node system; and the experimental progress enabling executing a loophole-free Bell test with superconducting circuits providing a unique combination of degree of non-locality and bit-rate. |
Anatoly Kulikov ; Simon Storz ; Josua Schär ; Martin Sandfuchs ; Ramona Wolf ; Renato Renner ; Andreas Wallraff; |
| 940 | On Noise in Swap ASAP Repeater Chains: Exact Analytics, Distributions and Tight Approximations Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we analytically investigate the homogeneous case, where we find exact analytic formulae for all moments of the fidelity up to 20 links. |
Kenneth Goodenough ; Tim Coopmans ; Don Towsley; |
| 941 | Towards An Extendible Hybrid Quantum Computer in The Cloud Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present the architecture and functionality of a new version (2.0) that unlocks hybrid computing using co-located classical servers. |
Olaf Schuesler ; Bas van Berckel ; Maarten Derickx ; Napoleon Cornejo Bolaños ; Pablo Le Henaff ; Roberto Turrado Camblor ; Chris Elenbaas ; Ariana Torres ; Christiaan Hollemans ; Richard Versluis; |
| 942 | Role of Syndrome Information in Scheduling Teleportation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we investigate the use of error correction and error syndrome information in scheduling teleportation at a quantum network node in the presence of multiple teleportation requests and finite rate of remote entanglement distribution. |
Aparimit Chandra ; Filip Rozpedek ; Don Towsley; |
| 943 | Enhancing The Capabilities of Superconducting Quantum Processors with Microwave Quantum Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk I will present work in which we explore approaches to network modular superconducting quantum processors using microwave-frequency quantum channels. |
Andreas Wallraff; |
| 944 | Semiconductor Spin Qubits: Playing The Long Game Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: It is therefore prudent to pursue long-game approaches to fault-tolerant quantum computing with semiconductor spin qubits. In this lecture, I will describe how the international research community has addressed some of the most pressing challenges facing silicon spin qubits (decoherence, large effective mass, and multiple conduction band valleys). |
Jason Petta; |
| 945 | Gate Model Quantum Computing with Atom Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The talk will present progress on gate model quantum computing with atom arrays. |
Mark Saffman; |
| 946 | Path to Large-scale Photonic Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will describe the basic requirements for photonic quantum computing, the advantages and disadvantages of our approach, and the current state of maturity of the technology. |
Gabriel Mendoza; |
| 947 | Suppression of The Optical Linewidth and Spin Decoherence in Diode-Embedded Spin Centers: Leveraging Advanced Optimization Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Given the multiple combinations of manufacturing parameters that a diode can have (e.g.: size, doping densities, temperature, bias voltage), a question that has not been answered yet is what set of diode design parameters yields the lowest possible electric noise. In this work, we address this question by developing a scaled-gradient-descent-based algorithm that minimizes the optical linewidth of spin centers. |
Jonatan Alejandro Velez ; David Stewart ; Denis Candido; |
| 948 | First-principles Investigation of Near Surface Divacancies in 3C-SiC Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we focus on silicon carbide (SiC), a promising material for quantum applications. |
Yizhi Zhu ; Victor Yu ; Giulia Galli; |
| 949 | Defect-based Quantum Emitters in Aluminum Nitride-passivated Silicon Carbide Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, these passivation schemes may not be reliable in the long-term due to their limited chemical and/or thermal stability [2]. In this first principles study, we employ an AlN/SiC core shell nanowire to study how passivation with an AlN layer affects different properties of SiC defects. |
Cyrille Armel Sayou Ngomsi ; Pratibha Dev; |
| 950 | Rotation of The Center-of-mass of Single Fluorescent Defects in Silicon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will investigate individual G centers in silicon through low-temperature photoluminescence measurements. |
Anais Dreau; |
| 951 | Voltage-controlled Switching of The Charge State of Si-vacancy Defects and N-vacancy Defects in Diamond Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report a voltage-controlled mechanism by which the photoluminescent (PL) emission from silicon-vacancy (SiV) defects and nitrogen-vacancy (NV) defects in diamond can be modulated. |
Stephen Cronin; |
| 952 | Scanning Tunneling Microscopy and Spectroscopy of Diamond with Nitrogen-Vacancy Centers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we pursue a novel approach to visualizing NVs using STM. |
Arjun Raghavan ; Seokjin Bae ; Nazar Delegan ; F. Joseph Heremans ; Vidya Madhavan; |
| 953 | Near-unity Charge State Initialization of NV Centers in Diamond Using Photo-activation of Phosphorus Dopants Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our work shows that the large difference between electronic and magnetic interaction length scales in high purity diamond can be exploited to produce tailored materials for quantum technologies. |
Marjana Mahdia ; Artur Lozovoi ; Zhiyang Yuan ; Jared Rovny ; Carlos Meriles ; Nathalie de Leon ; Marjana Mahdia; |
| 954 | Photoionization Spectroscopy of The Long-lived 1E Singlet State of NV Centers in Diamond Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we use photoionization spectroscopy to determine the ionization energy of the long-lived 1E singlet state, the final energy level in the optical cycle yet to be determined. |
Robert McMichael ; Sean Blakley ; Thuc Mai ; Stephen Moxim ; Jason Ryan ; Adam Biacchi ; Angela Hight Walker; |
| 955 | Ab-initio Theory of Nuclear Spin Flip Processes Within NV Center of Diamond Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In conjunction with experimental work under resonant optical excitation at cryogenic conditions we theoretically model the possible spin-flip processes acting within the 3E excited state. In summary, in the present talk I will show that the strength of such processes can be predicted directly from first principles supporting the experimental observations [3]. |
Gergő Thiering ; Richard Monge ; Tom Delord ; Carlos Meriles ; Ádám Gali; |
| 956 | Surface Spin Hopping Dynamics on Diamond Surfaces Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our study shows how the dynamics of dark spins affects the decoherence of near-surface NV center spin qubits. |
Jonah Nagura ; Mykyta Onizhuk ; Giulia Galli; |
| 957 | Decoupling Magnetic Dipolar Interactions Between Electron Spins in Diamond Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We find that for the weakly dipolar coupled NV centers, epsilon-CPMG shows enhancement of coherence for slight over and under rotations, while WAHUHA has little effect. |
Ethan Williams ; Madhumati Seetharaman ; Linta Joseph ; Chandrasekhar Ramanathan; |
| 958 | Oral:Optimizing Dynamical Decoupling Sequence Using Real-Time Noise Sensing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The time series of the photon emissions has been used to sense the noise in real-time [1]. We use this to obtain a probability distribution of the characteristic time of the noise. |
Ankur Pal ; Arshag Danageozian ; Bran Purvis; |
| 959 | Optical Spin Readout of Nuclear Spins Beyond The NV Electron T1 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate optical readout of nitrogen nuclear spin states coupled to dephased electron spins by optical re-pumping. |
Johnathan Kuan ; Evan MacQuarrie ; Gregory Fuchs; |
| 960 | Dissipative Cat Qubits for Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present our work to engineer and increase the peculiar kind of dissipation, known as two-photon dissipation, allowing to suppress exponentially the bit-flips of cat qubits. |
Sebastien Jezouin; |
| 961 | Quantum Control of A Cat-qubit with Bit-flip Times Exceeding Ten Seconds Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Most importantly, we control the phase of these quantum superpositions without breaking bit-flip protection. This work demonstrates quantum operations that preserve bit-flip times above ten seconds, a necessary step to scale these dynamical qubits into fully protected hardware-efficient architectures. |
Adrien Bocquet ; Zaki Leghtas ; Ulysse Reglade ; Ronan Gautier ; Joachim Cohen ; Antoine Marquet ; Emanuele Albertinale ; Natalia Pankratova ; Mattis Hallén ; Felix Rautschke ; Lev-Arcady Sellem ; Pierre Rouchon ; Alain Sarlette ; Mazyar Mirrahimi ; Phillipe Campagne-Ibarcq ; Raphael Lescanne ; Sebastien Jezouin; |
| 962 | Dissipative Stabilization of A Squeezed Cat Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Importantly, this improvement is expected to incur no additional cost regarding the phase-flip time. In this work, we experimentally demonstrate dissipative stabilization of a squeezed cat qubit by engineering an additional interaction term in between the oscillator and its environment, on top of the two-photon exchange. |
Rémi Rousseau ; Emanuele Albertinale ; Adrien Bocquet ; Gil Cardoso ; Joachim Cohen ; Nathanael Cottet ; Samuel Deléglise ; Antoine Essig ; Pierre Février ; Mattis Hallén ; Sebastien Jezouin ; Zaki Leghtas ; Raphael Lescanne ; Paul Magnard ; Anil Murani ; Natalia Pankratova ; Theau Peronnin ; Felix Rautschke ; Ulysse Reglade ; Julien Roul ; Diego Ruiz ; Jeanne Solard ; Jean-Loup Ville; |
| 963 | SQUID-Based Kerr Cat Qubit: Theory and Lifetime Analysis Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate an alternate design for the Kerr cat qubit, namely flux driven SQUIDs. |
Irwin Huang ; Bibek Bhandari ; KAGAN YANIK ; AHMED HAJR ; Bingcheng Qing ; Ke Wang ; Justin Dressel ; Andrew Jordan ; David Santiago ; Irfan Siddiqi; |
| 964 | High Coherence 2D Kerr-cat Qubit: Experimental Realization and Technical Challenges (1/2) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present an experimental realization of high-coherence Kerr-cat qubits in a 2D superconducting circuit. |
AHMED HAJR ; Bingcheng Qing ; Ke Wang ; Zahra Pedramrazi ; Long Nguyen ; Irwin Huang ; Bibek Bhandari ; Christian Juenger ; Gerwin Koolstra ; David Santiago ; Justin Dressel ; Andrew Jordan ; Irfan Siddiqi; |
| 965 | High Coherence 2D Kerr-cat Qubit: Experimental Realization and Technical Challenges (2/2) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present an experimental realization of high-coherence Kerr-cat qubits in a 2D superconducting circuit. |
Bingcheng Qing ; AHMED HAJR ; Ke Wang ; Zahra Pedramrazi ; Long Nguyen ; Irwin Huang ; Bibek Bhandari ; Gerwin Koolstra ; David Santiago ; Justin Dressel ; Andrew Jordan ; Irfan Siddiqi; |
| 966 | Leveraging Biased Noise Ancilla in Quantum Error Correction: Modeling and Experimental Investigations of Coupling Between A Transmon and Kerr-Cat Qubit: Part 1/2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present simulated and experimental investigations on the coupling of a transmon and Kerr-Cat qubit with the aim to demonstrate the potential benefits of biased noise ancilla in QEC. |
Haley Cole ; Josiah Cochran ; Hebah Goderya ; Zhuoqun Hao ; Theodore Shaw ; Ameya Riswadkar ; Shyam Shankar; |
| 967 | Leveraging Biased Noise Ancilla in Quantum Error Correction: Modeling and Experimental Investigations of Coupling Between A Transmon and Kerr-Cat Qubit: Part 2/2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present simulated and experimental investigations on the coupling of a transmon and Kerr-Cat qubit with the aim to demonstrate the potential benefits of biased noise ancilla in QEC. |
Josiah Cochran ; Haley Cole ; Hebah Goderya ; Zhuoqun Hao ; Theo Shaw ; Ameya Riswadkar ; Shyam Shankar; |
| 968 | An Experimentally Motivated Bias-preserving CNOT Gate for Kerr-cat Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we analyze an experimentally motivated version of the CNOT gate based on the activation of a parametric process with only one additional drive. |
Qile Su ; Max Schaefer ; Rodrigo Cortiñas ; Shruti Puri; |
| 969 | Experimental Progress Towards A Bias-preserving CNOT Gate Between Two Kerr-cat Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will present the operation of two coupled Kerr-cat qubits, and I report on our experimental progress toward realizing the bias-preserving CNOT gate. |
Max Schaefer ; Rodrigo Cortinas ; Nicholas Frattini ; Qile Su ; Shruti Puri ; Michel Devoret; |
| 970 | Tuning The ZZ Coupling Between Kerr-cat Qubits with Transmon Couplers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We here theoretically propose a method to tune a ZZ coupling between two Kerr-cat qubits using two transmon couplers [4]. |
Takaaki Aoki ; Taro Kanao ; Hayato Goto ; Shiro Kawabata ; Shumpei Masuda; |
| 971 | Sn-InAs Nanowire Based Superconducting Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: They are emerging as an alternative to Aluminum for hybrid superconductor-semiconductor studies. In this context, we aim to advance the field by utilizing Sn-based nanowire junctions to create superconducting qubits. |
Amrita Purkayastha ; Param Patel ; Amritesh Sharma ; Connor Dempsey ; Mihir Pendharkar ; Kun Zuo ; Moira Hocevar ; Chris Palmstrom ; Michael Hatridge ; Sergey Frolov; |
| 972 | Exploring The Quantum Transport Properties of Superconductor-constriction-superconductor Type Devices Based on Platinum Silicide (PtSi) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The parameters extracted from the low temperature transport measurements, including critical temperature, coherence length, critical current density, and critical field values, will be discussed in this work. |
Tharanga Nanayakkara ; Anthony Bollinger ; Ruoshui Li ; Chenyu Zhou ; Kim Kisslinger ; Aaron Stein ; Xiao Tong ; Yichen Jia ; Mingzhao Liu ; Charles Black; |
| 973 | Hybrid 2D-3D Heterostructures for Merged Element Transmons Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we demonstrate that by using flip-stack techniques in addition to traditional dry polymer transfer methods, deposited superconducting metals such as can be integrated into a 2D VdW heterostructure in a way that preserves the properties of clean 2D-3D interfaces throughout the stack. We report transport measurements in these structures, as well as discuss their integration into superconducting quantum circuits. |
John Lyons ; Param Patel ; Junwon Choi ; Michael Hatridge ; Benjamin Hunt; |
| 974 | Van Der Waals Materials Based Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study vdW Josephson junctions with NbSe 2 electrodes and WSe 2 weak links of varying thickness and demonstrate Josephson coupling across WSe 2 tunnel barriers up to ~12 nm in thickness. |
Jesse Balgley ; Jinho Park ; Xuanjing Chu ; Ethan Arnault ; Martin Gustafsson ; James Hone ; Kin Chung Fong; |
| 975 | Precise Patterning of Graphene for Voltage-tunable Josephson Junctions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we explore the use of local anodic oxidation based on atomic force microscopy [2] as part of a clean fabrication process of graphene junctions with a geometry controllable at the submicron scale. |
Pablo Mercader Perez ; Daniel Rodan-Legrain ; Joel Wang ; Réouven Assouly ; Max Hays ; Aranya Goswami ; Sameia Zaman ; Terry Orlando ; Simon Gustavsson ; Jeffrey Grover ; Kyle Serniak ; Pablo Jarillo-Herrero ; Pablo Jarillo-Herrero ; William Oliver; |
| 976 | First-principles Studies of Tunneling Properties of Al/Si and CoSi2/Si Junctions for Novel Silicon-based Merged-element Transmons Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present first-principles calculations of Schottky barrier heights (SBHs) at interfaces relevant for silicon-based merged-element transmon qubit devices. |
Johannes Kevin Nangoi ; Chris Van de Walle; |
| 977 | Optimizing Josephson Junction Area and The Fabrication Process of Superconducting Quantum Processors to Reduce Two-level System Defects Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report on our efforts to improve qubit performance by reducing the JJ area through fabrication process changes and compare qubit performance (TLS, coherence) across JJ sizes and barrier transparency. |
Hilal Cansizoglu ; Yuvraj Mohan ; Nicholas Sharac ; Rory Cochrane ; Cameron Kopas ; Ganesh Ramachandran ; Andrew Bestwick ; Joshua Mutus ; Kameshwar Yadavalli; |
| 978 | Transport Parameterization of Single Josephson Junction Charging Effects and Coupling Energy Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report here low-frequency transport measurements on single Al test JJs as well as JJs in transmons. |
Maxwell Wisne ; Yanpei Deng ; Venkat Chandrasekhar ; Mustafa Bal ; Francesco Crisa ; Anna Grassellino ; Cameron Kopas ; Josh Mutus ; Hilal Cansizoglu ; Florent Lecocq ; José Aumentado ; Stephen Gill; |
| 979 | Predicting Josephson Junction Critical Current from Room Temperature Data Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will discuss different data analysis techniques and mitigation strategies to use room temperature resistance data to more accurately predict cold junction critical current and qubit frequency. |
Hannah Stickler ; Michael Gingras ; Bethany Niedzielski ; David Kim ; Jeffrey Knecht ; Kate Azar ; Greg Calusine ; Ali Sabbah ; Felipe Contipelli ; Duncan Miller ; Arthur Kurlej ; Jonilyn Yoder ; William Oliver ; Mollie Schwartz ; Kyle Serniak; |
| 980 | Correlating Structure and Chemistry of Al/AlOx/Al Josephson Junctions with Junction Resistance Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report on atomic-scale transmission electron microscopy (TEM) analysis of Al/AlO x/Al Josephson junction and the correlation between structure and chemistry of the junction region to its resistance. |
Jaeyel Lee ; Francesco Crisa ; Mustafa Bal ; Akshay Murthy ; Alexander Romanenko ; Anna Grassellino; |
| 981 | The Materials Science of Josephson Junctions In-silico: Modelling Their Formation and Electrical Response from An Atomistic Point of View Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We perform molecular dynamics simulations of the oxidation and deposition process, in order to develop atomistic models of aluminium-oxide tunnel junctions. By simulating the fabrication process, we aim to determine what characteristics naturally emerge from the fabrication process, and how they can be controlled by modifying the fabrication conditions. |
Jared Cole; |
| 982 | Frequency Fluctuation of Transmon from A Charged Two-level System: Part I Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In part I, we report unambiguous observation of the discrete charge states of a single TLS strongly coupled to an offset-charge sensitive transmon qubit. |
Baojie Liu ; Yingying Wang ; Tal Sheffer ; Chen Wang; |
| 983 | Frequency Fluctuation of Transmon from A Charged Two-level System: Part II Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In part II, we perform real-time joint tracking of TLS transitions and quasiparticle tunneling, and eliminate complex dynamics due to the non-QNDness of the transmon readout. |
Yingying Wang ; Baojie Liu ; Tal Sheffer ; Chen Wang; |
| 984 | Real-Time Dynamics for Computing Hamiltonian Properties Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: One of the most promising expected applications of near-term quantum computers lies in the study of static and dynamical properties of quantum many-body systems. |
Katherine Klymko ; Norm Tubman ; Yizhi Shen ; Carlos Mejuto Zaera ; Daan Camps ; Roel Van Beeumen ; Siva Darbha ; David Williams-Young ; Aaron Szasz; |
| 985 | Estimating Eigenenergies from Quantum Dynamics: A Unified Noise-Resilient Measurement-Driven Approach Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Ground state energy estimation in physics and chemistry is one of the most promising applications of quantum computing. In this paper, we introduce a novel measurement-driven approach that finds eigenenergies by collecting real-time measurements and post-processing them using the machinery of dynamic mode decomposition (DMD). |
Roel Van Beeumen ; Yizhi Shen ; Daan Camps ; Aaron Szasz ; Siva Darbha ; Katherine Klymko ; David Williams-Young ; Norm Tubman; |
| 986 | Scalable Quantum Computation of Highly Excited Eigenstates with Spectral Transforms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a natural application of Quantum Linear Systems Problem (QLSP) solvers such as the HHL algorithm to efficiently prepare highly excited interior eigenstates of physical Hamiltonians in a variational and targeted manner. |
Shao-Hen Chiew; |
| 987 | Verifiable Solutions to The Schrodinger Equation with Variational Quantum Imaginary-Time Evolution Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we propose a variance-based VQE, which results in verifiable solutions to the Schrodinger equation by direct estimation of the wavefunction variance. |
Anthony Schlimgen ; Kade Head-Marsden; |
| 988 | Subspace-Search for Excited State Quantum Imaginary Time Evolution Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a method to determine the excited states of quantum systems through adapting the Subspace-Search method from the Subspace-Search Variational Quantum Eigensolver (SSVQE) to Quantum Imaginary Time Evolution (QITE). |
Cameron Cianci ; Francisco Pérez-Bernal ; Victor Batista ; Lea F. Santos; |
| 989 | Novel Implementation of Variational Quantum Imaginary Time Evolution for Solving General Quantum Unconstrained Binary Optimization Problems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a new method based on a variational ansatz, coupled with a novel implementation of Variational Quantum Imaginary Time (VarQITE), that solves a variety of QUBO problems with meager cost. |
Titus Morris ; Phillip Lotshaw; |
| 990 | The Quantum Zeno Monte Carlo Method for The Hamiltonian Eigenstate Properties Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we develop the Quantum Zeno Monte Carlo method to find Hamiltonian eigenstate properties such as the ground state energy and the Green’s function. |
Mancheon Han ; Hyowon Park ; Sangkook Choi; |
| 991 | Trotter24: A Precision-guaranteed Adaptive Stepsize Trotterization for Hamiltonian Simulations Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present a method measuring the Trotter error without ancillary qubits by combining the second- and fourth-order Trotterizations rather than consulting with mathematical error bounds. |
Tatsuhiko Ikeda ; Hideki Kono ; Keisuke Fujii; |
| 992 | Quantum Simulation of A Spin-boson Hamiltonian and Its Performance Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We aim to expand the range of applications of quantum computers by exploring their potential in investigating effects within cavity quantum electrodynamics (cQED). |
Maria Tudorovskaya ; David Muñoz Ramo; |
| 993 | Prolonging A Discrete Time Crystal By Quantum-classical Feedback Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we propose a scheme that leverages quantum-classical feedback protocols to enhance a time crystal signal significantly exceeding the decoherence time of the device. |
Gonzalo Camacho ; Benedikt Fauseweh; |
| 994 | An Adaptive Pulse-level Variational Quantum Eigensolver Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Preliminary results simulating transmon devices suggest evolution times can be reduced by several orders of magnitude. We elaborate on these results by comparing adaptive protocols for identifying the minimal number of parameters and pulse duration needed to prepare molecular ground states from a Hartree-Fock reference state. |
Kyle Sherbert ; Diksha Dhawan ; Guo Xuan Chan ; Hisham Amer ; Nicholas Mayhall ; Sophia Economou ; Edwin Barnes; |
| 995 | Ground State Energy and Magnetization Curve of A Frustrated Magnetic System from Real-time Evolution on A Digital Quantum Processor Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I show a proof-of-principle demonstration of two medium-term hybrid quantum algorithms for finding ground states, unitary variational quantum phase estimation (UVQPE) and observable dynamical mode decomposition (ODMD). |
Aaron Szasz ; Ed Younis ; Wibe de Jong; |
| 996 | Shortcuts to Adiabaticity in Krylov Space Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that the equation for the counterdiabatic term, equivalently the adiabatic gauge potential, is solved by introducing a Krylov basis. |
Adolfo del Campo ; Kazutaka Takahashi; |
| 997 | Fast-forward Scaling and Shortcuts to Adiabaticity Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we revisit a relation between fast-forward scaling and counterdiabatic driving, which is one of the methods of shortcuts to adiabaticity. |
Takuya Hatomura; |
| 998 | Feedback-based Quantum Algorithm Inspired By Counterdiabatic Driving Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose that by including one additional control parameter inspired by counterdiabatic driving, one can accelerate the population transfer to the low-energy states within a shorter time scale compared to a single control parameter. |
Rajesh Malla ; Hiroki Sukeno ; Hongye Yu ; Tzu-Chieh Wei ; Andreas Weichselbaum ; Robert Konik; |
| 999 | Robustness of Controlled Hamiltonian Approaches to Unitary Quantum Gates Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We examine the effectiveness and resilience of achieving quantum gates employing three approaches stemming from quantum control methods: counterdiabatic driving, Floquet engineering, and inverse engineering. |
Baris Cakmak ; Steve Campbell ; Eoin Carolan; |
| 1000 | Quantum Shortcut to High-Fidelity State Preparation in A Jaynes-Cummings Lattice Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present a counter-diabatic Hamiltonian for a two-site JC lattice with a single polariton, which can be realized by simply tuning local qubit-cavity couplings in the JC lattice. |
Kang Cai ; Prabin Parajuli ; ANUVETHA GOVINDARAJAN ; Lin Tian; |
| 1001 | State Preparation in A Jaynes-Cummings Lattice with Quantum Optimal Control: Threshold Time and Quantum Speed Limit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we improve the QOC algorithm to achieve a better understanding of the relation between the threshold time and the quantum speed limit (QSL). |
ANUVETHA GOVINDARAJAN ; Lin Tian ; Prabin Parajuli; |
| 1002 | New Methods for Quantum Control and Circuit Synthesis with Symmetry-respecting Interactions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In the second part, I will focus on the special case of energy-conserving unitaries, i.e., those that conserve the sum of Pauli Z operators on all qubits, corresponding to a global U(1) symmetry. I will present explicit circuit synthesis methods for realizing all such unitaries with XY interaction alone, using 2 ancilla qubits. |
Iman Marvian; |
| 1003 | Two-dimensional Automata of Highly Entangled States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We develop an approach to generate highly entangled ground states of local Hamiltonians. |
Wucheng Zhang ; Sarang Gopalakrishnan; |
| 1004 | Entanglement-Thermodynamical Study of Quantum Energy Teleportation in One-Dimensional Heisenberg Model Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study the quantum energy teleportation in one-dimensional Heisenberg model under the open boundary condition. |
Hiroaki Matsueda ; Kanji Itoh ; Yusuke Masaki; |
| 1005 | An SU(2) Symmetric Semidefinite Relaxation for Ground States of Heisenberg Models Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we focus on the fact that for the (antiferromagnetic) Ising model, computational complexity theory provides strong evidence for the Goemans-Williamson algorithm, a semidefinite programming (SDP) based approach, to be *optimal* in the approximation ratio sense (for a particular convention of the base energy choice corresponding to the so-called "Max Cut" problem). |
Jun Takahashi ; Chaithanya Rayudu ; Cunlu Zhou ; Robbie King ; Kevin Thompson ; Ojas Parekh; |
| 1006 | Bundled Matrix Product States Represent Low-energy Excitations Faithfully Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Ground-state wave functions satisfying the area law of entanglement entropy can be efficiently expressed as a matrix product states (MPS) for local, gapped Hamiltonians. The extension to a bundled MPS describes excitations, and we provide a formal proof of its efficiency. |
Negar Seif ; Thomas Baker; |
| 1007 | Quantum Algorithms on Noisy Devices and The Edge of Classical Simulations Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk I discuss recent progress on classical simulations of noisy quantum circuits at a fixed level of physical error per gate, with a focus on operator truncation methods. |
Cristina Cirstoiu; |
| 1008 | Quantum Algorithm Co-design for Field-testing The Path to Advantage Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We illustrate this approach using a scheduling and routing scenario for the Australian Army: our hybrid quantum algorithm provides solutions for full-scale use-cases and features (1) a current quantum routing sub-routine for ~6 vehicles on several available routes, (2) a problem decomposition method that allows scaling of the number of vehicles towards the classically-challenging threshold at ~100 vehicles, and (3) resource requirements of only sparse two-qubit connectivity outside local qubit clusters and circuit duration less than 1ms for classically-challenging problems (within challenging but achievable T1 limits) on superconducting devices. |
Gavin Hartnett ; Andre Carvalho ; Samuel Marsh ; Christopher Bentley; |
| 1009 | Quantum Critical Enhancement of Classical Sampling Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we analyze the performance of the quantum-enhanced Markov chain Monte Carlo (MCMC) algorithm, which samples from a Boltzmann distribution of a classical Hamiltonian [Layden, David, et al. |
Alev Orfi ; Dries Sels; |
| 1010 | A Quantum-Classical Performance Separation in Nonconvex Optimization Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this paper, we identify a family of nonconvex continuous optimization instances, each d-dimensional instance with 2 d local minima, to demonstrate a quantum-classical performance separation. |
Jiaqi Leng ; Yufan Zheng ; Xiaodi Wu; |
| 1011 | Quantum, Relax, and Round Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce a relax-and-round approach [1] embedding the quantum approximate optimization algorithm (QAOA) with p≥1 layers. |
Maxime Dupont ; Bhuvanesh Sundar; |
| 1012 | SantaQlaus: A Resource-efficient Method to Leverage Quantum Noise for Optimization of Variational Quantum Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce SantaQlaus, a resource-efficient optimizer for variational quantum algorithms (VQAs), including VQE and QML applications. |
Kosuke Ito ; Keisuke Fujii; |
| 1013 | Highly Optimized Tensor Network Contractions for The Simulation of Classically Challenging Quantum Computations Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Simultaneously, almost exact, highly optimized tensor network contraction has been established as the leading approach for attempting the simulation of these and other experiments. In this talk, I will describe our latest strategies for the optimization of tensor network contraction in this context, which give tight estimates on the simulation computational cost of our largest experiments. |
Benjamin Villalonga; |
| 1014 | Classical Algorithm for Simulating Experimental Gaussian Boson Sampling Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present a new classical tensor-network algorithm that takes advantage of a large loss rate to significantly reduce the computational cost to simulate the experimental Gaussian boson sampling. |
Changhun Oh; |
| 1015 | Efficient Sampling of Noisy Shallow Circuits Via Monitored Unraveling Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce a classical algorithm for sampling the output of shallow, noisy random circuits on two-dimensional qubit arrays. |
Zihan Cheng ; Matteo Ippoliti; |
| 1016 | Estimating The Randomness of Quantum Circuit Ensembles Up to 50 Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The ability of random circuits to approximate any random unitaries has consequences on their complexity, expressibility, and trainability. To study this property of random circuits, we develop numerical protocols for estimating the frame potential, the distance between a given ensemble and the exact randomness. |
Minzhao Liu ; Junyu Liu ; Yuri Alexeev ; Liang Jiang; |
| 1017 | Addressing Superresolution Imaging with Entanglement-assited Long-baseline Telescopy Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: One of those methods tries to estimate the visibility of a star using pre-shared entanglement to encode the phase of light arriving at a telescope array. In this work we adapt such method, in combination with a mode sorting technique, to the problem of resolving two monochromatic astronomical objects of equal brightness, thus overcoming the so called "Rayleigh’s curse" of diffraction-limited systems. |
Isack Chavez Padilla ; Aqil Sajjad ; Babak Saif ; Saikat Guha; |
| 1018 | Optimal Quantum Metrology Using Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We use a qubit to both prepare highly non classical Fock input states [1] and resolve individual photon numbers [2]. |
Akash Dixit ; Ankur Agrawal ; Tanay Roy ; Srivatsan Chakram ; Kevin He ; Ravi Naik ; David Schuster ; Aaron Chou; |
| 1019 | Quantum Sensing By The Resonant Transduction of Photons to Quasiparticles Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Absorption by the qubits of background radiation generates nonequilibrium quasiparticles (QPs), a dominant source of qubit initialization errors. Here, we explore three schemes to exploit this physics to realize next-generation mm-wave sensors. |
David Harrison ; Abigail Shearrow ; Chuanhong Liu ; Shravan Patel ; John Batarekh ; Salizhan Kylychbekov ; Soren Ormseth ; Peter Timbie ; Roman Kuzmin ; Robert McDermott; |
| 1020 | Development of Qubit-based Light Dark Matter Detector on Sapphire Substrate Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This talk describes our ongoing development of a prototype detector. |
Kester Anyang ; Rakshya Khatiwada ; Ryan Linehan; |
| 1021 | Analysis of Quasiparticle Diffusion in Microwave Kinetic Inductance Detectors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we design, model, and fabricate Josephson junction-based slot and patch antennas that transduce photons to quasiparticles (QPs) with a predicted efficiency of >90%. |
Salizhan Kylychbekov ; Gabriel Spahn ; Soren Ormseth ; David Harrison ; Roman Kuzmin ; Peter Timbie ; Robert McDermott; |
| 1022 | A Comprehensive Characterization of Optical Superconducting Transition-edge Sensors for Rare Event Searches Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Within a dark matter experiment focused on searching for dark matter dark photons, we present an unprecedented, comprehensive study of TES background rates and signal characteristics. |
Laura Manenti; |
| 1023 | Quantum Sensors for Fundamental Physics and Beyond Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will delve into various quantum techniques for quantum-enhanced distributed noise sensing, with a focus on their application to dark matter searches—a particularly intriguing endeavor. |
Anthony Brady; |
| 1024 | Practical Approach to Extending Baselines of Telescopes Using Continuous-VariableQuantum Information Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this paper, we propose an alternative entanglement-assisted scheme that interferes a two-mode squeezed vacuum state with the astronomical state and then measures the resulting state by means of homodyne detection. |
Bran Purvis ; Robert Lanning ; Randy Laffler; |
| 1025 | Microwave Photonics with Quantum Paraelectric Materials Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This talk will present our preliminary results on measurement of KTO and STO dielectric response in the microwave regime, as well as simulation and fabrication of devices. |
Peter Mugaba Noertoft ; Eric Rosenthal ; Giovanni Scuri ; Christopher Anderson ; Jelena Vuckovic; |
| 1026 | Comparative Study of Cosmic Ray-induced Decay in Transmon Qubits in Surface and Deep Underground Experiments Using Fast Decay Detection Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We first characterize the action of gamma-ray events on the qubits utilizing the change in decay probability with sub-millisecond time resolution and then compare the occurrence of such events above and below ground. We will present our preliminary data including simulations and discuss its implications on quantum computing. |
Tanay Roy ; Mustafa Bal ; Laura Cardani ; Nicola Casani ; Ivan Colantoni ; Francesco Crisa ; Angelo Cruciani ; Franceso Dominicis ; Anna Grassellino ; Dounia Helis ; Ambra Mariani ; Roman Pilipenko ; Stefano Pirro ; Alexander Romanenko ; David Zanten; |
| 1027 | Thousandfold Phase Amplification in A Robust Resonant Atom Interferometer Via Applying Quantum Control to Multipath Interference Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose and demonstrate a novel type of robust resonant light-pulse atom interferometer that leverages multipath interference of different spatial trajectories to overcome limitations from pulse infidelities and coherently amplify the readout signal. |
Yiping Wang ; Zilin Chen ; Kenneth DeRose ; Tejas Deshpande ; Jonah Glick ; Kefeng Jiang ; Sharika Saraf ; Tim Kovachy; |
| 1028 | Advances in Single Microwave Photon Detection Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation, we introduce an enhanced SMPD architecture that promises a significant reduction in the detector’s dark count rate. |
Alexandre MAY ; Raphael Lescanne ; Jeanne Solard ; Patrice Bertet ; Emmanuel Flurin; |
| 1029 | Remote Entanglement of A Cavity with A Josephson Circuit for Axion Search Acceleration Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present progress towards performing entanglement and frequency-conversion on a microwave cavity mode which is coupled to a Josephson three-wave-mixing element via a waveguide. |
Elizabeth Ruddy ; Yue Jiang ; Kyle Quinlan ; Michael Vissers ; Konrad Lehnert; |
| 1030 | Remote Quantum Networking with Single Rare-earth Ions: Bipartite Entanglement and Teleportation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we implement a two node network using single 171Yb ions in YVO 4 coupled to nanophotonic cavities. |
Andrei Ruskuc ; Chun-Ju Wu ; Emanuel Green ; Sophie Hermans ; Joonhee Choi ; Andrei Faraon; |
| 1031 | Remote Quantum Networking with Single Rare-earth Ions: Tripartite Entanglement Heralding Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Specifically, we show that entanglement of three 171Yb ions can be heralded with a single photon protocol. |
Chun-Ju Wu ; Andrei Ruskuc ; Emanuel Green ; Sophie Hermans ; Joonhee Choi ; Andrei Faraon; |
| 1032 | Polarization Mode Dispersion Compensation Towards Improved Polarization Based Quantum Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present the comparative results of the polarization transform at wavelengths of 1559.5 nm and 1560.5 nm to confirm the impact of our PMD analysis and compensation system. |
Jaehoon Choi ; Keshav Kapoor ; Benjamin Nussbaum ; Kwang-Yong Song ; Hee-Su Park ; Virginia Lorenz ; Paul Kwiat; |
| 1033 | Experimental Storage of Photonic Polarization Entanglement in A Broadband Loop-based Quantum Memory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report on an experiment in which one member of a polarization-entangled photon pair is stored in an active "loop and switch" type quantum memory device, while the other propagates through a passive optical delay line. |
Carson Evans ; Cory Nunn ; Sandra Cheng ; James Franson ; Todd Pittman; |
| 1034 | A Single-photon Source Based on Cavity Quantum Electrodynamics Considering The Re-excitation Problem Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this method, there is a process that inhibits ideal photon generation due to the relaxation of excited atoms to the initial state, which degrades the performance of quantum information processing utilizing photons. To address this issue, we propose a novel photon generation scheme using a four-level atom. |
Seigo Kikura ; Rui Asaoka ; Masato Koashi ; Yuuki Tokunaga; |
| 1035 | A Scalable Multi-partite High-dimensional Quantum Network for High-rate Entanglement Distribution and Secure Communications Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we have demonstrated a four-user network that uses high-dimensional arrival time bin encoding that can exceed state-of-the-art implementations in performance and work under high background noise. To overcome these limitations to achieve scalable quantum key distribution networks, we employed high-dimensional entanglement on an energy-time basis to encode multiple bits of information per entangled photon pair shared between two users. |
Murat Can Sarihan ; Xiang Cheng ; Kai-Chi Chang ; Ariel Shlosberg ; Cody Fan ; Graeme Smith ; Chee Wei Wong; |
| 1036 | Advancements in Superconducting Quantum Networks for Scalability Beyond Single Cryostat Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will present our experimental progress in developing a superconducting network featuring a 64-meter-long channel [2]. |
Jiawei Qiu ; Yang Liu ; Jingjing Niu ; Ling Hu ; Yukai Wu ; Libo Zhang ; Song Liu ; Youpeng Zhong ; Luming Duan ; Dapeng Yu; |
| 1037 | Fast Optical Switching for Quantum Information Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The effectiveness of this technique relies on the polarization of the pump being maintained during the pump-signal interaction, which can be implemented by using two equal-length segments of orthogonally-oriented polarization-maintaining fiber. Here, we present progress towards realizing such a device for telecom-wavelength single photons. |
Ujaan Purakayastha ; Paul Kwiat; |
| 1038 | Multimode Character of Quantum States Released from A Superconducting Cavity Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we study as a generic example the release of complex quantum states from a superconducting resonator, employing a flux tunable coupler to engineer and control the release process. |
Maryam Khanahmadi ; Mads Middelhede Lund ; Klaus Mølmer ; Göran Johansson; |
| 1039 | Quantum Key Distribution Testbed For Acceleration of Secure Quantum Communication Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a novel test methodology that utilizes existing photonics hardware, coupled with single-photon detectors and quantum control software to enable designers to rapidly prototype their QKD designs. |
Gabriel Lenetsky; |
| 1040 | Implementation of The RRDPS QKD Protocol Using Time-domain Fourier Transform Via Space-time Duality Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: A conventional method utilizes optical switches to achieve variable-delay interferometry. |
Yusuke Murakami ; Akihisa Tomita ; Atsushi Okamoto; |
| 1041 | Hardware Modelling in Space-based Quantum Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, I will present a semi-analytical model of a satellite-based quantum network that takes into account hardware losses, both classical (link budget) and quantum (quantum memory time, imperfect qubit operations, etc.). |
Victoria Domínguez Tubío; |
| 1042 | A Quantum Switch for Itinerant Microwave Single Photons with Superconducting Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: As such, our work provides a prime building block for microwave quantum networks and modular superconducting quantum computing. |
Yan Li ; Zenghui Bao ; Zhiling Wang ; Yukai Wu ; Jiahui Wang ; Jize Yang ; Haonan Xiong ; Yipu Song ; Hongyi Zhang ; Luming Duan; |
| 1043 | Accelerating Undergraduate QISE Education and Research By Economy of Scale: QuSTEAM Nonprofit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe a nonprofit model for collaboration to offer customized support, including course modules supporting evidence-based teaching. |
Bennett Brown; |
| 1044 | A Gentle Introduction to Quantum Information Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: The term "quantum" can be intimidating to students outside of physics, which leads to few outside of physics pursuing studies in quantum information science and … |
Todd Zimmerman; |
| 1045 | Qubit By Qubit & Google Quantum AI: Insights and Best Practices for Teaching Quantum Computing to Early Learners Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, QxQ will share insights from their analysis on the knowledge gains and challenges that early learners face. |
Kiera Peltz; |
| 1046 | Oqtant: Democratizing Quantum Research and Education with Cloud-accessible Quantum Matter Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation, we will introduce Oqtant and demonstrate how learners at many levels can leverage it for quantum education and research. |
Alex Tingle ; Anjul Loiacono ; Noah Fitch; |
| 1047 | Bringing The Cold Atom Quantum Experience Out of The Research Lab and Into The Classroom Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present desqtopMOT: an instrument that brings the fundamentals and concepts of cold atom MOT experiments directly into any educational environment, making hands-on quantum learning accessible to all. |
Charles Williams ; Neil Anderson ; Evan Salim ; Hannes Bernien ; Danyel Cavazos-Cavazos; |
| 1048 | Conceptual and Mathematical Challenges in Precollege Quantum Information Science and Technology Outreach Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Quantum information science and technology (QIST) has many promising benefits for society under the four research paradigms of computing, communication, sensing, and simulation. … |
Angela Kelly ; Dominik Schneble ; Tzu-Chieh Wei ; Michele Darienzo; |
| 1049 | Teaching Modern Quantum Computing Concepts Using Hands-on Open-source Software at All Levels Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Parallel to these developments, the availability of open-source software for simulating quantum computing experiments has paved the way to enhancing quantum computing education with hands-on exercises. In this talk, we discuss how these developments also expand the reach of quantum computing education from the traditional undergraduate and graduate level to the high school level. |
Abraham Asfaw; |
| 1050 | Multibasis Encodings in Recurrent Neural Network Wave Functions for Variational Optimization Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Motivated by the success of variational quantum optimization with multibasis encodings, we propose a quantum-inspired machine learning algorithm that integrates both approaches to reduce the system size as well as parameters in a neural network ansatz. |
Wirawat Kokaew ; Mohamed Hibat-Allah ; Lauren Hayward Sierens ; Juan Carrasquilla; |
| 1051 | Mean-field Approximate Optimization Algorithm for Max-q-XORSAT Problems on D-regular Graphs Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we have extended our new algorithm for d-regular and q-uniform hypergraphs which represent the Max-q-XORSAT problems for d= 2. |
Aditi Misra-Spieldenner ; Dmitry Bagrets ; Frank Wilhelm-Mauch; |
| 1052 | Performance of Commercial Quantum Annealing Solvers for The Capacitated Vehicle Routing Problem Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We provide an efficient analysis of the quality of the solutions returned by adiabatic quantum annealers for the Capacitated Vehicle Routing Problem (CVRP). |
Alan Mott ; Salvatore Sinno ; Thomas Groß ; Arati Sahoo ; Deepak Honnalli ; Shruthi Thuravakkath ; Bhavika Bhalgamiya; |
| 1053 | High-fidelity Two-qubit Gates with Transmon Qubits Using Bipolar Flux Pulses and Tunable Couplers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present an experimental realization of a high-fidelity 2-qubit controlled-phase gate using superconducting flux-tunable transmon qubits with 99.48% fidelity. |
Nikita Smirnov ; Aleksei Matanin ; Anton Ivanov ; Dmitriy Moskalev ; Anastasia Pishchimova ; Ilya Rodionov; |
| 1054 | Nanoscale Postfabrication Treatment for A Wafer-scale Precise Qubits Frequency Control Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose a new method for precise control of superconducting qubit frequencies with nanoscale postfabrication treatment of Josephson junctions tunnel barriers, which can be beneficial for a wafer-scale quantum processors fabrication. |
Ilya Rodionov ; Nikita Smirnov ; Daria Moskaleva ; Elizaveta Krivko ; Anton Ivanov ; Alexey Matanin ; Dmitry Moskalev ; Anastasia Pishchimova ; Andrey Lebedev; |
| 1055 | WKB Exactness and Generalized Langer Correction for All Conventional Potentials Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a generalized Langer correction and show that it generates the exact WKB quantization condition for all conventional potentials. |
Jonathan Bougie ; Asim Gangopadhyaya ; Constantin Rasinariu; |
| 1056 | Contextuality, Coherences, and The Quantum Cheshire Cat Paradox Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We analyse the quantum Cheshire cat using contextuality theory, to see if this can tell us anything about how best to interpret this paradox. |
Jonte Hance ; Ming Ji ; Holger Hofmann; |
| 1057 | Semiclassical Theory of The Koopman-van Hove Equation Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: The phase space Koopman-van Hove (KvH) equation can be derived from the asymptotic semiclassical analysis of partial differential equations. Semiclassical theory yields the … |
Ilon Joseph; |
| 1058 | Witnessing Quantum Entanglement Using Resonant Inelastic X-ray Scattering Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Existing protocols are limited to the usage of the inelastic neutron scattering. We developed a new protocol that can utilize the resonant inelastic X-ray scattering for this task, thus enlarging the class of quantum materials whose quantum entanglement is subject to experimental detection. |
Tianhao Ren ; Yao Shen ; Sophia TenHuisen ; Jennifer Sears ; Wei He ; Mary Upton ; Diego Casa ; Petra Becker ; Mark Dean ; Robert Konik; |
| 1059 | How Knowledge Leads to The Demise of Schrodinger’s Cat Through A Null Measurement (A Quantum Mechanical Measurement in Which The Specific Measurement Outcome Is Not Dependent on A Physical Interaction Between A Physical Instrument and The System Measured) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The wf is how we make probabilistic predictions regarding systems in quantum mechanics. |
Douglas Snyder; |
| 1060 | Running Applications on A Quantum Network Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present an architecture for executing quantum applications on a network of quantum processors, and report on their implementation on a two-node quantum network testbed in the lab. |
Stephanie Wehner; |
| 1061 | Cyber Risk Mitigation in The Era of Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will review the quantum threat to cyber-security. |
Hoi-Kwong Lo; |
| 1062 | What Can 10 Qubits Do to Solve Classification Problems? Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: So far, however, the accumulated evidence shows its difficulties, and it seems that it is not so easy to extract the practical computational power out of these devices, which are otherwise capable to create complex dynamics. In this talk, we present a new approach to use such complex quantum dynamics for a practical computational task. |
Kae Nemoto; |
| 1063 | Entanglement of Nanophotonic Quantum Memory Nodes in A Telecommunication Network Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By integrating efficient bi-directional quantum frequency conversion of photonic communication qubits to telecommunication frequencies (1350 nm), we demonstrate entanglement of two nuclear spin memories through 40 km spools of low-loss fiber and a 35 km long fiber loop deployed in the Boston area urban environment, representing an enabling step towards practical quantum repeaters and large-scale quantum networks. |
Can Knaut ; Aziza Suleymanzade ; Yan-Cheng Wei ; Daniel Assumpcao ; Pieter-Jan Stas ; Yan Qi Huan ; Bartholomeus Machielse ; Erik Knall ; Maddie Sutula ; Gefen Baranes ; Neil Sinclair ; Chawina De-Eknamkul ; David Levonian ; Mihir Bhaskar ; Hongkun Park ; Marko Loncar ; Mikhail Lukin; |
| 1064 | Quantum Networking with Trapped Ions in Optical Cavities Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk I will present our realization of a quantum network node based on a register of trapped calcium ions interfaced with photons via a high finesse optical cavity. |
Viktor Krutianskii ; Marco Canteri ; Josef Schupp ; Vojtech Krchmarsky ; James Bate ; Martin Meraner ; Ben Lanyon; |
| 1065 | A 2×2 Quantum Processor in 28Si/SiGe Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present control over a 4-qubit device in a square 2×2 configuration. |
Florian Unseld ; Brennan Undseth ; Oriol Pietx-Casas ; Marcel Meyer ; Saurabh Karwal ; Sergey Amitonov ; Amir Sammak ; Giordano Scappucci ; Menno Veldhorst ; Lieven Vandersypen; |
| 1066 | Improving Measurement Techniques and Infrastructure for The Milli-kelvin Characterization of Quantum Dot Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Electron spin qubits hosted in quantum dots are a promising platform for quantum computing as they are dense, coherent, and can be integrated with advanced semiconductor manufacturing. A key challenge is achieving sufficient uniformity in these devices to scale to larger arrays as the properties of quantum dots can be influenced by many aspects of the solid-state environment such as disorder or the atomistic details of interfaces. |
Daniel Keith ; Thomas Watson ; Joelle Corrigan ; Bishnu Patra ; otto zietz ; Florian Luthi ; Felix Borjans ; Praveen Sriram ; Stefano Pellerano ; Jeanette Roberts ; Jim Clarke; |
| 1067 | Scalability of of Semiconductor Quantum Dot Architectures: Shared Control, Qubit Addressability, and Connectivity Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Current approaches in solid-state quantum technology are based on brute-force methods, where each and every qubit requires at least one unique control line, an approach that will become unsustainable when scaling to the required millions of qubits [1]. In this talk, I will present our progress in this direction and detail our ambitions to advance the state-of-the-art of semiconductor qubits toward fault-tolerant quantum computing. |
Francesco Borsoi; |
| 1068 | Readout of Spin Qubit Arrays Made By Advanced Semiconductor Manufacturing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we discuss our current approach for readout of our 12-quantum dot array Tunnel Falls chip with onboard HBT-based cryo-amplifiers enabling high-fidelity Pauli-spin-blockade readout. |
Simon Schaal ; Matthew Curry ; Bishnu Patra ; Lester Lampert ; Sushil Subramanian ; Todor Mladenov ; Daniel Keith ; Felix Borjans ; Mateusz Madzik ; Thomas Watson ; Florian Luthi ; Elliot Connors ; Nader Khammassi ; Nathaniel Bishop ; Stephanie Bojarski ; Stefano Pellerano ; Jeanette Roberts ; James Clarke; |
| 1069 | Adiabatic Electron Spin Resonance Inversion in An FDSOI Quantum Dot Array Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Toward realization of a practical quantum computer, scalability of qubits is essential and still quite challenging[1]. In order to overcome this technical challenge, we developed a two-dimensional quantum dot array using FDSOI (Fully-Depleted-Silicon-on-Insulator), which has large scalability by sophisticated commercial semiconductor technology [2]. |
Takuma Kuno ; Takeru Utsugi ; Ryuta Tsuchiya ; Lee Noriyuki ; Toshiyuki Mine ; Itaru Yanagi ; Raisei Mizokuchi ; Jun Yoneda ; Tetsuo Kodera ; Takashi Nakajima ; Shinichi Saito ; Digh Hisamoto ; Hiroyuki Mizuno; |
| 1070 | Fabrication and Characterization of Multi-rail Si/SiGe Exchange-only Spin Qubits in The SLEDGE Architecture Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report on the fabrication of a two-rail, six-dot device with three distinct back-end routing layers. |
Kate Raach; |
| 1071 | High-connectivity SiGe Quantum Dot Devices Using The SLEDGE Architecture Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By eliminating interstitial field gates, a triangular dot array only requires a single metal layer of back-end routing when using the SLEDGE device architecture [2]. Here we show full configuration interaction simulations of such a triangular device, providing confidence that the device can be tuned into a state where all three dots reach single electron occupancy and provide adequate control of the exchange coupling [3,4]. |
Kaushal Shyamsundar ; Edwin Acuna ; Antonio Mei ; Wonill Ha ; Cameron Jennings ; Daniel Sanchez ; Andrew Pan ; Matthew Reed ; Jason Petta; |
| 1072 | High-fidelity Dispersive Spin Readout in A Scalable Unit Cell of Silicon Quantum Dots Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Achieving readout fidelity at the level of control operations has also remained challenging. In this work, we address both limitations: we demonstrate single-shot spin readout with fidelity above 99.9% measured in 400 us in a planar MOS quantum dot array fabricated using a 300mm wafer process. |
Constance Laine ; Giovanni Oakes ; Jacob Chittock-Wood ; Sofia Patomäki ; Michael Fogarty ; Stefan Kubicek ; Ross C. Leon ; Fernando Gonzalez-Zalba ; John Morton; |
| 1073 | Quantum LDPC Error Correcting Codes for Use on 1D Quantum Dot Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We devise a suite of heuristic methods for compiling any ECC circuit to run with an approximately minimal number of "shifts" of the array. |
Anthony Micciche ; Krishna Praneet Gudipaty ; Stefan Krastanov; |
| 1074 | Dephasing Mechanisms and Fidelity of Entangled Spin Qubits Preparation Under Joint Continuous Measurement Via Longitudinal Couplings to A Superconducting Resonator Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We consider the preparation dynamics of spin qubits entanglement via joint continuous measurement with longitudinal couplings to a superconducting resonator (see [1]). |
Rusko Ruskov ; Charles Tahan; |
| 1075 | Design of An Intel Quantum Control Processor for Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Qubit control electronics are commonly used and discussed, but in this talk we introduce the Quantum Control Processor (QCP), which is responsible for orchestrating the control electronics using inspiration from classical CPU design. |
Andrew Risinger ; Todor Mladenov ; Albert Schmitz ; Grant Baker ; Andrew Litteken ; Beverly Klemme ; Sahar Daraeizadeh ; Shavindra Premaratne ; Xiang Zou ; Anne Matsuura; |
| 1076 | High-fidelity Parametric Beamsplitting with A Parity-protected Converter Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that in addition to a careful management of drive frequencies and the spectrum of environmental noise, leveraging the inbuilt symmetries of the converter Hamiltonian can suppress unwanted nonlinear interactions, preventing converter-induced decoherence. We demonstrate these principles using a differentially-driven DC-SQUID as our converter, coupled to two high-Q microwave cavities. |
Yao Lu; |
| 1077 | Dual-rail Cavity Qubit Measurements with Erasure Detection, Part 1: Design Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By using standard circuit quantum electrodynamics techniques, namely measurements of cavity photon number via a transmon, we demonstrate SPAM fidelities exceeding those in any other qubit platform to date. In part 1 of this two-part talk, we describe the dual-rail cavity qubit hardware, design of our SPAM protocol, and show that repeated measurements of cavity photon number can be used to trade off erasure rates for exceedingly high SPAM fidelities. |
Kevin Chou ; Tali Shemma ; Heather McCarrick ; Tzu-Chiao Chien ; James Teoh ; Patrick Winkel ; Luigi Frunzio ; José Aumentado ; Shruti Puri ; Steven Girvin ; S. Harvey Moseley ; Robert Schoelkopf; |
| 1078 | Dual-rail Cavity Qubit Measurements with Erasure Detection, Part 2: Experiment Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we focus on the recent experimental realization of a key element of the dual-rail cavity qubit concept: state preparation and measurement (SPAM) [2]. In part 2 of this two-part talk, we present results of the experimental demonstration of the dual-rail cavity qubit. |
Tali Shemma ; Kevin Chou ; Heather McCarrick ; Tzu-Chiao Chien ; James Teoh ; Patrick Winkel ; Luigi Frunzio ; José Aumentado ; Shruti Puri ; Steven Girvin ; S. Harvey Moseley ; Robert Schoelkopf; |
| 1079 | Erasure Detection for Bosonic Dual-Rail Qubits with A Strong Beamsplitter Interaction (Part 1/2) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This measurement allows us to convert the most-likely qubit error (single photon loss to the vacuum) into erasures, which dramatically ease the task of quantum error correction and lead to higher thresholds in the surface code. In part 1 of this two-part talk, we explore how a strong beamsplitter drive transforms the transmon spectrum and how this can be used to construct high-fidelity erasure checks. |
Stijn de Graaf ; Sophia Xue ; Benjamin Chapman ; James Teoh ; Takahiro Tsunoda ; Patrick Winkel ; John Garmon ; Robert Schoelkopf; |
| 1080 | Erasure Detection for Bosonic Dual-Rail Qubits with A Strong Beamsplitter Interaction (Part 2/2) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This measurement allows us to convert the most-likely qubit error (single photon loss to the vacuum) into erasures, which dramatically ease the task of quantum error correction and lead to higher thresholds in the surface code. In part 2 of this two-part talk, we benchmark the performance of this mid-circuit erasure check on a dual-rail qubit and demonstrate that it is both high-fidelity and has minimal back action on the code space. |
Sophia Xue ; Stijn de Graaf ; Benjamin Chapman ; James Teoh ; Takahiro Tsunoda ; Patrick Winkel ; John Garmon ; Robert Schoelkopf; |
| 1081 | Demonstrating An Erasure-detected Entangling Gate Between Dual-rail Cavity Qubits – Part 1 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In part 1 of this talk, we focus on the remaining missing ingredient — an entangling gate between two dual-rail cavity qubits. |
Anirudh Narla ; Taewan Noh ; Nitish Mehta ; Tzu-Chiao Chien ; Pinlei Lyu ; James Teoh ; José Aumentado ; S. Harvey Moseley ; Robert Schoelkopf; |
| 1082 | Demonstrating An Erasure-detected Entangling Gate Between Dual-rail Cavity Qubits – Part 2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe the gate tune-up procedure and characterize both the error-detected gate fidelity and erasure rate. |
Nitish Mehta ; Taewan Noh ; Anirudh Narla ; Tzu-Chiao Chien ; Pinlei Lyu ; James Teoh ; José Aumentado ; S. Harvey Moseley ; Robert Schoelkopf; |
| 1083 | Characterizing The Coherence in The Dual-rail Subspace of Two Superconducting Cavities: (Part 1) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To this end, we introduce the dual-rail cavity qubit, where logical information is encoded in the single-photon subspace of two superconducting cavities. |
John Garmon ; Patrick Winkel ; Yao Lu ; Aniket Maiti ; James Teoh ; Stijn de Graaf ; Sophia Xue ; Luigi Frunzio ; Robert Schoelkopf; |
| 1084 | Characterizing The Coherence in The Dual-rail Subspace of Two Superconducting Cavities (Part 2) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present the mechanisms of decoherence in the dual-rail subspace intrinsic to the cavities, and how errors in the auxiliary systems can propagate into the logical subspace. |
Patrick Winkel ; John Garmon ; Yao Lu ; Aniket Maiti ; James Teoh ; Stijn de Graaf ; Sophia Xue ; Luigi Frunzio ; Robert Schoelkopf; |
| 1085 | Dual-rail Encoding in A Fixed-frequency Multimode Transmon Qubit with Ancilla-free Erasure Error-detection Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present a dual-rail encoding within a single fixed-frequency superconducting multimode transmon qubit. |
James Wills ; Gioele Consani ; Brian Vlastakis ; OQC Hardware Team; |
| 1086 | Achieving Negative Dispersive Shift Matching for Fault Tolerant Error Mapping in Pair Coherent States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Measuring the PND of the system can be made first order fault tolerant by achieving negative matching of the dispersive shift values for the two storage modes. We achieve this by utilizing a fluxonium qubit, with a local flux application to avoid storage lifetime degradation, as an ancilla due to the large anharmonicity. |
Sean van Geldern ; Chen Wang; |
| 1087 | QRAM Architectures Using 3D Superconducting Cavities Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose two bucket-brigade QRAM architectures based on high-coherence superconducting resonators, which differ in their realizations of the conditional-routing operations. |
Daniel Weiss ; Shruti Puri ; Steven Girvin; |
| 1088 | Investigating Bursts of Suppressed Relaxation Time Using Quantum Inspire Starmon-5 and A 17-transmon Processor Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We exploit mid-circuit measurement to detect the incidence rate. |
Giuseppe Ruggero Di Carlo ; Jorge Marques ; Miguel Moreira ; Leonardo DiCarlo; |
| 1089 | Quasiparticle Dynamics in Offset-charge-sensitive Transmons Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we use a direct-dispersive charge-parity readout scheme to continuously monitor multiple qubits in an OCS transmon array. |
Felipe Contipelli ; Patrick Harrington ; Max Hays ; Renée DePencier Piñero ; Kate Azar ; Greg Calusine ; Thomas Hazard ; David Kim ; Bethany Niedzielski ; Ali Sabbah ; Hannah Stickler ; Jonilyn Yoder ; Mollie Schwartz ; William Oliver ; Kyle Serniak; |
| 1090 | Studying Correlated Errors in Superconducting Qubits Underground in NEXUS Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present results from measurements of an array of weakly charge-sensitive superconducting qubits exposed to a range of radiation fluxes. |
Grace Bratrud; |
| 1091 | Quasiparticle Dynamics in A Superconducting Qubit Irradiated By A Localized Infrared Source Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we systematically study the coherence properties of a transmon qubit under illumination by a focused infrared laser beam. |
Maxwell Drimmer ; Rodrigo Benevides ; Francesco Adinolfi ; Giacomo Bisson ; Uwe von Lüpke ; Hugo Doeleman ; Yiwen Chu; |
| 1092 | Quasiparticle Tunneling in Tantalum-based Transmon Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, tantalum has a superconducting gap several times higher than that of aluminum, which could lead to confinement of quasiparticles near the aluminum Josephson junction. In this work, we measure charge-parity switching rates in tantalum-based transmons to determine how quasiparticle tunneling contributes to energy relaxation in these devices. |
Heekun Nho ; Spencer Diamond ; Thomas Connolly ; Pavel Kurilovich ; Charlotte Bøttcher ; Michel Devoret; |
| 1093 | Real-time Detection of Quasiparticle Tunneling Events Using A Transmon Qubit Directly Coupled to A Waveguide Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we investigate the statistics of QP tunneling events in a charge sensitive transmon qubit, strongly coupled to a waveguide. |
Linus Andersson ; Kazi Rafsanjani Amin ; Axel Eriksson ; Mikael Kervinen ; Robert Rehammar ; Simone Gasparinetti; |
| 1094 | Design, Fabrication and Characterization of Multi-qubit Devices for Quasiparticle Injection Studies Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we discuss the design choices we made with respect to matching fluxonium and transmon frequencies and ensuring strong flux dependence of the matrix elements. |
Ben Byrd ; Ivan Pechenezhskiy ; Kesavan Manivannan ; Nada Elmeligy; |
| 1095 | Quasiparticle Poisoning of Fluxonium Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By controlling quasiparticle injection, we aim to distinguish the quasiparticle-induced effects from other decoherence channels. |
Kesavan Manivannan ; Ben Byrd ; Ivan Pechenezhskiy; |
| 1096 | Quasiparticle Effects in Magnetic-field-resilient 3D Transmons (Part 1 – Experiment) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present spectroscopy and parity lifetime (τ p) measurements of a 3D transmon up to 400 mT in-plane field. |
Christian Dickel ; Jonas Krause ; Giampiero Marchegiani ; Lucas Janssen ; Gianluigi Catelani ; Yoichi Ando; |
| 1097 | Quasiparticle Effects in Magnetic-field-resilient 3D Transmons (Part 2 – Theory) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In part two of two, we present the modeling of the charge-parity lifetime (τ p) of a magnetic-field resilient 3D transmon [1]. |
Giampiero Marchegiani ; Jonas Krause ; Christian Dickel ; Lucas Janssen ; Gianluigi Catelani ; Yoichi Ando; |
| 1098 | Investigating The Susceptibility of Niobium- and Tantalum-Based Superconducting Qubits to Infrared Radiation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we assess cryogenic setups in terms of quasi-particle tunneling rates for both niobium and tantalum-based qubits. |
Michael Kerschbaum ; Uros Ognjanovic ; Giovanni Vio ; Kuno Knapp ; Dante Colao Zanuz ; Alexander Flasby ; Mohsen Bahrami Panah ; Andreas Wallraff ; Jean-Claude Besse; |
| 1099 | High-frequency Flux Noise from Quasiparticles Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe a mechanism of flux noise that originates from the presence of quasiparticles in the superconducting wires, and predict the resulting frequency and temperature dependence. |
Jose Alberto Nava Aquino ; Rogério de Sousa; |
| 1100 | First Measurements of Superconducting Quasiparticle-Amplifying Transmon (SQUAT) Sensors for THz Photons and MeV Phonons Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: These devices have several features which are especially beneficial for dark matter searches, including excellent energy sensitivity, bandwidth; multiplexability, and noise performance. Here we present the design and initial measurements of prototype SQUAT devices and demonstrate the potential of this new sensor. |
Chiara Salemi ; Hannah Magoon; |
| 1101 | Enhancing Initial State Overlap Through Orbital Optimization Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, these single configuration states are defined in fixed orbital bases and orbital relaxation could improve their overlap with the ground state [1, 5]. Our work aims to show that this is indeed the case for classically demanding molecules. |
Pauline Ollitrault ; Cristian Cortes ; Jerome Gonthier ; Robert Parrish ; Dario Rocca ; Matthias Degroote ; Nikolaj Moll ; Raffaele Santagati ; Michael Streif; |
| 1102 | Tapered Quantum Phase Estimation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In standard QPE, ancilla qubits are prepared in an equal superposition state. In tapered quantum phase estimation (tQPE) we allow for an arbitrary initial ancilla state and optimize this state using modern signal analysis methods. |
Andrew Sornborger ; Dhrumil Patel ; Shi Jie Samuel Tan ; Yigit Subasi; |
| 1103 | Improving Phase Estimation By Post Processing QPE Circuit Output Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present a software package that uses various numerical optimization methods along with machine learning to more accurately estimate the phases of unitary operators, reaching, especially for circuits with few qubits, well beyond the 2^(-n) limit of the traditional method. |
Charles Woodrum ; Torrey Wagner ; David Weeks; |
| 1104 | Applications of Projection Algorithm for State Preparation on Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we will discuss applications of a recently developed algorithm for state preparation Phys. |
Alessandro Baroni ; Ang Li ; Ionel Stetcu ; Travis Humble ; Joseph Carlson; |
| 1105 | Hidden Time-evolution Structure of The Quantum Approximate Optimization Algorithm When It Is Used for Ground-state Preparation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By comparing optimized QAOA trajectories, we find it is closely related to local adiabatic time evolution. |
Zekun He ; James Freericks ; Alexander Kemper; |
| 1106 | Angular Momentum Orbital Space of Molecules and Extend Systems for Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We developed highly efficient quantum algorithms for simulating the electronic Hamiltonian with spherical harmonics (SH) basis function by leveraging the angular momentum entanglement. |
Anguang Hu ; Hang Hu ; James (HsuKiang) Ooi; |
| 1107 | Continuous-Space Quantum Simulation: A Discretization-Free Approach with Hybrid Quantum-Classical Ansatze Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I propose an alternative approach of harnessing quantum resources within Variational Monte Carlo simulations for continuous space problems which does not require any form of discretization. |
Friederike Metz ; Giuseppe Carleo; |
| 1108 | Fault-tolerant Quantum Computation of Molecular Forces Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation, I will introduce a fault-tolerant quantum algorithm for calculating expectation values of molecular observables. |
Michael Streif ; Nikolaj Moll ; Matthias Degroote ; Raffaele Santagati ; Cristian Cortes ; Matthias Loipersberger ; Robert Parrish ; Sam Morley-Short ; William Pol ; Sukin Sim ; Mark Steudtner; |
| 1109 | Challenges and Opportunities for Applying Quantum Computers to Drug Design Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, harnessing the full potential of quantum computing in the pharmaceutical industry requires further improvements in hardware and novel algorithms. We will discuss these challenges and discuss several routes to achieve these goals and progress these challenges. |
Raffaele Santagati ; Alán Aspuru-Guzik ; Ryan Babbush ; Matthias Degroote ; Leticia Gonzalez ; Elica Kyoseva ; Nikolaj Moll ; Markus Oppel ; Robert Parrish ; Nicholas Rubin ; Michael Streif ; Christofer Tautermann ; Horst Weiss ; Horst Weiss ; Nathan Wiebe ; Clemens Utschig-Utschig; |
| 1110 | Stabilizing Coherence and Arbitrary Target Properties with Hamiltonian Control – Part 1: Theory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present a theory identifying which target properties of a quantum system can be perfectly preserved using purely Hamiltonian control. |
Kumar Saurav ; Daniel Lidar ; Eli Levenson-Falk ; Malida Hecht ; Sacha Greenfield ; Evangelos Vlachos ; Parth Darekar; |
| 1111 | Stabilizing Coherence and Arbitrary Target Properties with Hamiltonian Control – Part 2: Experiment Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We apply the theory discussed in Part 1 to experimentally show that we can fully stabilize a qubit’s coherence in the presence of single-axis dephasing noise using Hamiltonian control. |
Malida Hecht ; Kumar Saurav ; Eli Levenson-Falk ; Daniel Lidar ; Sacha Greenfield ; Evangelos Vlachos ; Parth Darekar; |
| 1112 | Limitations to Gate-Error Virtualization from Temporally Correlated Nonclassical Noise Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study a minimal exactly-solvable single-qubit model under Gaussian quantum dephasing noise, showing that the fidelity of a DD-protected idling gate can depend strongly on the applied control history, even when the system-side error propagation is removed through perfect reset operations. |
Michiel Burgelman ; Nattaphong Wonglakhon ; Diego Bernal Garcia ; Gerardo Paz-Silva ; Lorenza Viola; |
| 1113 | Reinforcement Learning for Hamiltonian Engineering of Dipolar Coupled Spin Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Low-order expansions of Average Hamiltonian Theory and Floquet theory have provided a framework to generate effective pulse sequences, both analytically and using numerical methods. |
Madhumati Seetharaman ; Owen Eskandari ; Ethan Williams ; Will Kaufman ; Matthew Goodbred ; Chandrasekhar Ramanathan; |
| 1114 | QGASS: A Gradient-free Stochastic Feedback Control Approach for Arbitrary Open Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present a system-agnostic approach for measurement-based feedback control of the stochastic master equation with optimality in mind. |
Ethan Evans ; Adam Frim ; Ziyi Wang ; Evangelos Theodorou ; Michael DeWeese; |
| 1115 | Exploring The Topology of A Non-Hermitian Qubit Using Shortcuts to Adiabaticity Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we harness the notion of shortcuts to adiabaticity to drive the system faster, avoiding the effects of loss while maintaining trajectories that follow the instantaneous eigenstates. |
Serra Erdamar ; Maryam Abbasi ; Weijian Chen ; Kater Murch; |
| 1116 | Perspectives on Quantum Characterization and Control in Correlated Noise Environments Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present some recent developments on both frequency-based QNS methods aimed at obtaining an intrinsic description of the noise properties, and resource-efficient frame-based aimed at noise-tailored predictive control. |
Lorenza Viola; |
| 1117 | Robust and Optimal Control in Weakly Coupled Open Quantum System Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The dominant sources of errors arise from the fluctuations of system parameters and Lindblad noise. In this study, we propose a new GRAPE algorithm for an open quantum system, which enables simultaneous optimizations for both types of these errors. |
Hongwei Huang ; Zijie Chen ; Lida Sun ; Luyan Sun ; Changling Zou; |
| 1118 | Time-Convolutionless Master Equation Applied to Adiabatic Elimination Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we study the connection between two model reduction methods for systems described by a Lindblad equation. |
Angela Riva ; Masaaki Tokieda; |
| 1119 | Optimal Zeno Dragging for Quantum Control: A Shortcut to Zeno with Action–based Scheduling Optimization Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: It is possible to implement a dissipative control that is known as "Zeno Dragging", by dynamically varying the observable monitored, and hence the eigenstates which are attractors under Zeno dynamics; this is similar to adiabatic processes, in that the Zeno dragging fidelity is highest when the rate of eigenstate change is slow compared to the measurement rate. We demonstrate here two methods of interest in this context. |
Yipei Zhang ; Philippe Lewalle ; Birgitta Whaley; |
| 1120 | Separate Measurement- and Feedback-driven Entanglement Transitions in The Stochastic Control of Chaos Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study measurement-induced entanglement and control phase transitions in a quantum analog of the Bernoulli map subjected to a classically-inspired control protocol. |
Conner LeMaire ; Andrew Allocca ; Jed Pixley ; Thomas Iadecola ; Justin Wilson; |
| 1121 | Robust Quantum Control for Quantum Hypothesis Testing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we employ optimal control methods to compare scenarios with and without accounting for signal frequency inaccuracies. |
Xin Wang ; Han Xu ; Benran Wang ; Haidong Yuan; |
| 1122 | Shaping Quantum System By Indirect Measurement Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we introduce a quantum-measurement scheme to charge a multilevel battery coupled to the ancillary systems. |
Jun Jing; |
| 1123 | New Circuits and An Open Source Decoder for The Color Code Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: The color code is a leading competitor for use in the design of large scale fault tolerant quantum computers, because it shares many of the advantages of the surface code. It has … |
Craig Gidney ; Cody Jones; |
| 1124 | Improving Threshold for Fault-tolerant Color Code Quantum Computing By Flagged Weight Optimization Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This makes color codes not the best candidate. Here, we propose a method to suppress the impact of such errors by optimizing weights of decoders using flag qubits and reducing the circuit depth using cat states. |
Yugo Takada ; Keisuke Fujii; |
| 1125 | Blueprint for Large-scale Quantum Computing with Biased Noise Qubits and The XZZX Surface Code Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I’ll present a blueprint for building a large-scale quantum computer using the XZZX surface. |
Jahan Claes ; Shruti Puri; |
| 1126 | Mitigating Temporal Fragilities in The XY Surface Code During State Preparation and Logical Measurements Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We proposed a logical state preparation protocol by locally entangling qubits into small GHZ states prior to stabilizer measurements that project qubits onto XY code states. |
Pei-Kai Tsai ; Yue Wu ; Shruti Puri; |
| 1127 | New Methods for Reducing Resource Overhead in The Surface Code Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: One proposal to lower this overhead is to use a hierarchical coding scheme, with surface codes concatenated into more qubit-efficient codes. We will discuss one such approach towards reducing these overheads. |
Michael Newman ; Craig Gidney ; Cody Jones; |
| 1128 | Distance-preserving Stabilizer Measurements in Hypergraph Product Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, the non-locality of the stabilizers makes them hard to measure with low-depth circuits, and such circuits can potentially propagate errors and significantly reduce the effective distance. In this work, we study Hypergraph Product (HPG) Codes, a popular family of such qLDPC codes. |
Argyrios Giannisis Manes ; Jahan Claes; |
| 1129 | Surface Version of Two-layer Generalized-bicycle Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we give a general prescription for constructing "surface" versions of GB codes which do not require periodic boundary conditions. |
Renyu Wang ; Hsiang Lin ; Xingrui Liu ; Leonid Pryadko; |
| 1130 | Circuit Performance of Abelian and Non-abelian Two-block Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We design fault-tolerant and time efficient syndrome measurement circuits for abelian and non-abelian two-block codes [1,2] using one ancillary qubit per stabilizer generator. |
Hsiang Ku Lin ; Renyu Wang ; Xingrui Liu ; Leonid Pryadko; |
| 1131 | Tangling Schedules Eases Hardware Connectivity Requirements for Quantum Error Correction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: A set of scheduling rules are typically imposed on the the order of gates to ensure the circuit can be rearranged into an equivalent circuit that can be easily seen to measure the stabilisers. In this work, we ask what if we break these rules and instead use tangled schedules circuits. |
Gyorgy Pal Geher ; Ophelia Crawford ; Earl Campbell; |
| 1132 | Feasibility of Implementing Small Surface and Bacon-Shor Codes with Two Different Qubit Encoding Schemes on A Spin Quantum Computer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This work shows that the combination of a hybrid-qubit scheme and the Bacon-Shor code is a promising candidate for the demonstration of a distance-3 FT QECC on a spin quantum computer, without requiring the full qubit connectivity found in other systems, like trapped ions. |
Mauricio Gutierrez ; Chien-Yuan Chang ; Juan Rojas-Arias; |
| 1133 | Estimating The Ground State Energy of Hydrogen at Distance 3 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In the current work, we increase the code distance to three using the Steane code, and use gate teleportation to execute T gates, using magic states prepared fault-tolerantly. |
Ben Criger ; Andrew Tranter ; Kentaro Yamamoto ; David Muñoz Ramo ; Silas Dilkes ; Yuta Kikuchi; |
| 1134 | Even More Efficient Magic State Distillation By Zero Level Distillation on The Square Lattice Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose zero-level distillation as a cost-effective method to reduce the logical error rate to O(p 2) in the first stage of magic state distillation (MSD). |
Tomohiro Itogawa ; Yugo Takada ; Yutaka Hirano ; Keisuke Fujii; |
| 1135 | Continuously Tunable Surface Code Logical Gates Via Syndrome-adaptive Transversal Operations Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose an approximate protocol for realizing coherent rotations on the logical qubits encoded in a surface code using only coherent rotations on the physical qubits and syndrome measurements. |
Eric Huang ; Pierre-Gabriel Rozon ; Kartiek Agarwal ; Arpit Dua ; Michael Gullans; |
| 1136 | Characterizing The Diamond Waveguide Platform with High Density of NV− Centers for Quantum Sensing Applications Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Thus, a comprehensive characterization of this platform is essential for its future use. In this study, we present an in-depth analysis of this platform using the ensemble of NV centers it contains, with insights into the diffusion of vacancies, waveguide translational symmetry, and spatial profiles of strain and changes in the refractive index. |
Mohammad Sahnawaz Alam ; Yanzhao Guo ; Michal Gawelczyk ; Daniel Wigger ; Giulio Coccia ; Federico Gorrini ; Sajedeh Shahbazi ; Vibhav Bharadwaj ; Roberta Ramponi ; Alexander Kubanek ; Alexander Kubanek ; Angelo Bifone ; Shane Eaton ; John Hadden ; Anthony Bennett ; Pawel Machnikowski; |
| 1137 | Probing Condensed Matter Systems with Nanoscale Covariance Magnetometers Based on Diamond Quantum Sensors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: I will describe an NV center platform for measuring correlations in condensed matter targets, using excess quasiparticle noise near a superconducting phase transition as a model system. |
Kai-Hung Cheng ; Jared Rovny ; Alexander Pakpour-Tabrizi ; Maxime Nurwubusa ; Zeeshawn Kazi ; Yifan Zhang ; Rhine Samajdar ; Sarang Gopalakrishnan ; Nathalie de Leon; |
| 1138 | Correlated Sensing of Stochastic Coulomb Fields in Interacting NV Clusters Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we demonstrate a new sensing modality, where correlating noise across centers in sub-diffraction NV clusters allows us to study charge dynamics at the nanoscale. |
Tom Delord ; Richard Monge ; Carlos Meriles; |
| 1139 | Theory of Optically Detected Magnetic Resonance of A Silicon Vacancy in SiC: A Quantum Sensor of Magnetic Fields Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We simulate optically detected magnetic resonance (ODMR) of the negatively charged silicon vacancy in 6H-SiC (V Si –), using Lindblad master equations, and compare with experimental data [1]. |
David Fehr ; Hannes Kraus ; Corey Cochrane ; Michael Flatté; |
| 1140 | Wavelet-enhanced Ramsey Magnetometry of A Nanodiamond Single NV Center Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose Ramsey magnetometry of a single NV center enhanced by a wavelet-denoising scheme tailored against PSN. |
Ceyhun Bulutay ; Ekrem Guldeste; |
| 1141 | Wide-field AC Magnetic Field Imaging with Nitrogen-vacancy Centers in Diamond Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we used an ensemble of NV centers in diamond to achieve wide-field imaging of AC magnetic fields produced by a high frequency (GHz range) MW current running through a test device consisting of a fabricated 100-μm-wide copper wire as well as other microwave antennae. |
Luca Basso ; Pauli Kehayias ; Jacob Henshaw ; Jasmine Mah ; Gajadhar Joshi ; Khalifa Azizur-Rahman ; Rong Cong ; Michael Lilly ; Andrew Mounce; |
| 1142 | Precision Measurement and Spectroscopy with Diamond NV Centers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: I will discuss methods being developed to overcome challenges due to microwave phase noise and laser heating. I will present our latest progress towards implementing these methods in NV-detected NMR spectroscopy and femtotesla magnetometry [1]. |
Victor Acosta; |
| 1143 | Noise Analysis and Sensitivity Optimization in NV-diamond Based Magnetic Field Imaging Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present frequency-dependent noise contributions from the optical, microwave, and readout chains then demonstrate their effects on the coherence times and sensitivities for QDM systems operating with pulsed control and LED optical control. |
Nima Leclerc ; Sean Oliver ; Dmitro Martynowych ; Joseph Hagmann; |
| 1144 | Integration of A Near-field Coupling Device with Scanning Probes for Nitrogen-Vacancy Magnetometry Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present the design and the implementation of a new type of scanning Nitrogen-Vacancy (NV) magnetic imaging probe with an integrated microwave (MW) near-field coupling device for optimized spin manipulation. |
Jodok Happacher ; Juanita Bocquel ; Brendan Shields ; Patrick Maletinsky; |
| 1145 | Measuring The Topology of Quantum Degeneracies Using An NV Center Platform Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that their protocol provides the same topological characterization of the degeneracy as Berry’s phase which is measured by adiabatic transport of the quantum state for the cases of conical and quadratic degeneracies considered by Brown et al, as well as more generally. |
Jonathon Miller ; Jesse Berezovsky ; Harsh Mathur; |
| 1146 | Resonant Versus Non-resonant Spin Readout of A Nitrogen-vacancy Center in Diamond Under Cryogenic Conditions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we focus on the regime of cryogenic temperatures, where the NV’s zero-phonon line splits into a set of narrow, spin-selective optical transitions and investigate alternative (non-ionizing) spin read-out strategies. |
Richard Monge ; Tom Delord ; Gergő Thiering ; Ádám Gali ; Carlos Meriles; |
| 1147 | Enhancing Nitrogen-vacancy Activation in Diamond with Phosphorus Co-implantation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a systematic co-implantation study of P and N near the surface of diamond to increase activation of NVs while maintaining ideal spin properties. |
Jasmine Mah ; Jacob Henshaw ; Khalifa M Azizur-Rahman ; Luca Basso ; Gajadhar Joshi ; Rong Cong ; Tzu-Ming Lu ; Michael Titze ; Michael Lilly ; Andrew Mounce; |
| 1148 | Scanning Quantum Sensing of Quantum Materials Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Nitrogen-vacancy (NV) centers, optically active atomic defects in diamond, are directly relevant in this context due to their unprecedented field and spatial sensitivity and remarkable functionality over a broad range of experimental conditions. In this talk, I will report our recent efforts on developing scanning NV magnetometry techniques and utilizing them to reveal some interesting spin behaviors in novel quantum material systems. |
Senlei Li ; Mengqi Huang ; Hanyi Lu ; Nathan McLaughlin ; Yuxuan Xiao ; Jingcheng Zhou ; Eric Fullerton ; Hua Chen ; Hailong Wang ; Chunhui Du; |
| 1149 | Indirect Cooling of Trapped Ions Through Phonon Rapid Adiabatic Passage Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, these techniques are hampered by the voltage filters needed to suppress high frequency noise, and are relatively sensitive to drifts in mode frequency and drive amplitude. Here we demonstrate a technique that overcomes these limitations, which we call phonon rapid adiabatic passage (phRAP). |
R. Tyler Sutherland ; Maya Fabrikant ; Ivaylo Madjarov ; Paul Lauria ; William Burton ; Christopher Gilbreth; |
| 1150 | Quantum Control, Transport and Electric Field Noise Sensing in A Micro Fabricated Penning Trap Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Using in-sequence switching, we demonstrate the ability to trap ions while isolating the electrodes from all voltage sources to minimise the effects of any technical noise. Our work characterizes a range of elements of a unit-cell for a Penning trap QCCD architecture for scalable quantum computing and simulation and highlights its use as an electric field noise sensor. |
Pavel Hrmo ; Jonathan Home ; Shreyans Jain ; Martin Stadler ; Celeste Torkzaban ; Robin Oswald ; Christopher Axline ; Amado Bautista-Salvador ; Christian Ospelkaus ; Daniel Kienzler ; Tobias Saegesser; |
| 1151 | 137Ba+ Cooling and Gates in A Grid-style Trap Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present high fidelity laser-enabled single qubit and two qubit Mølmer-Sørensen gates. |
James Hostetter ; Lucas Sletten ; Andrew Schaffer ; Matthew Cich ; Grahame Vittorini; |
| 1152 | Novel Ion Trap Junction Design for Transporting Qubits in A 2D Array Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose and simulate a novel two-layer junction design incorporating two perpendicularly rotoreflected linear ion traps. |
Gavin Nop ; Jonathan Smith ; Daniel Stick ; Durga Paudyal; |
| 1153 | Progress Toward Using 137Ba+ Qubits in A Quantinuum Quantum Computer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, the use of ytterbium poses practical scaling challenges as gate operations require high-power ultraviolet laser light and high measurement fidelities are difficult to achieve. Here we will describe our efforts in overcoming these challenges by moving to qubits based on barium-137 ions. |
Adam Reed ; Riley Ancona ; David Francois ; John Gaebler ; Colin Kennedy ; Anthony Ransford ; Tucker Sprenkle ; Justin Bohnet; |
| 1154 | Requirements for Trapped-ion Based Blind Quantumcomputing with A Measurement-only Client Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce a numerical model for trapped-ion quantum devices in NetSquid, a discrete-event simulator for quantum networks. |
Janice van Dam ; Guus Avis ; Joshua Slater ; Stephanie Wehner; |
| 1155 | An Architecture for Distributed Fault Tolerant Quantum Computing Over A Trapped-ion Quantum Network with Finite Resources Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose an architecture based on dual-species trapped-ion (DSTI) nodes for universal fault-tolerant quantum computation in the presence of loss errors in photonic interfacing and Pauli noise in the trapped ion qubits, using a hybrid approach that combines intra-nodal gate-based and inter-nodal measurement-based implementations. |
Nitish Chandra ; Saikat Guha ; Kaushik Seshadreesan; |
| 1156 | Sensing Parity-violation Effects in Chiral Molecular Ions: Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In the presentation, we will report integrated theoretical efforts to guide the potential experimental endeavors for sensing PV effects with the trapped molecular ion experiment technique[2]. |
Xuecheng Tao ; Anastasia Pipi ; Arianna Wu ; David Leibrandt ; Prineha Narang; |
| 1157 | Robust and Deterministic Preparation of Bosonic Logical States in A Trapped Ion Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we demonstrate the robust, high-fidelity and measurement-free preparation of arbitrary targeted bosonic states in a trapped ion. |
Ting Rei Tan ; Vassili Matsos ; Christophe Valahu ; Tomas Navickas ; Arjun Rao ; Maverick Millican ; Michael Biercuk; |
| 1158 | Low Excitation Transport of Ba-Sr Crystals Through An RF Paul Trap X-junction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, their large mass imbalance poses potential challenges, particularly in transporting Ba-Sr pairs through junctions in two-dimensional surface RF Paul traps. Here, we demonstrate transport of Ba-Sr crystals through such an X-junction and measure that, at 2 m/s, the transport induces an increase in thermal occupation of 0.035 +- 0.005 quanta per round trip in both the axial in-phase and out-of-phase modes with insignificant coherent excitation. |
James Hostetter ; Lucas Sletten ; Andrew Schaffer ; Matthew Cich ; Grahame Vittorini ; Curtis Volin ; William Burton; |
| 1159 | Quantum Order-by-disorder in The Triangular Lattice Long-range Ising Model Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Using the density matrix renormalization group (DMRG), we numerically study the lifting of the extensive classical ground state degeneracy via small quantum fluctuations. |
Avi Kaplan-Lipkin ; Brenden Roberts ; Norman Yao; |
| 1160 | Integrated Control Stack for Optical Qubit-based Quantum Computing and Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present Qblox’s qubit agnostic and integrated solution for control and readout of various optical qubit types, including defects in diamond, trapped ions, and quantum memory systems. |
Folkert De Vries ; Tijmen van Eijk ; Jeroen van Straten ; Anass Wifak ; Mafalda Jotta Garcia ; Marijn Tiggelman ; Damaz de Jong ; Jordy Gloudemans ; Wouter Vlothuizen ; Jules van Oven ; Cornelis Christiaan Bultink; |
| 1161 | Dispatches from Google’s Hunt for Super-quadratic Quantum Advantage in New Applications Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The talk may cover research into fundamentally new quantum algorithms, as well as research seeking new applications for established paradigms. |
Ryan Babbush; |
| 1162 | Simulating Strongly Correlated Condensed Matter Systems on A Quantum Computer Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: The simulation of strongly correlated systems is one of the most exciting potential applications of quantum computers. There is hope that quantum algorithms could enable the … |
Edwin Barnes; |
| 1163 | Robust Phase Estimation and Heisenberg-limited Hamiltonian Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: I will first talk about some recent progress on new algorithms and analysis of robust single-phase and multi-phase estimation algorithms. Then, I will discuss its applications for … |
Lexing Ying; |
| 1164 | Non-orthogonality in Quantum Algorithms for Molecular States Enables Quantum Advantage Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present new options for electronic structure quantum algorithms based on the use of non-orthogonal methods that allow a different cut between quantum and classical processing components to be made. |
Birgitta Whaley; |
| 1165 | Quantum Thermal State Preparation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Monte Carlo-style quantum Gibbs samplers have emerged as an alternative, but prior proposals have been unsatisfactory due to technical obstacles rooted in energy-time uncertainty. We introduce simple continuous-time quantum Gibbs samplers that overcome these obstacles by efficiently simulating Nature-inspired quantum master equations (Lindbladians). |
András Gilyén ; Chi-Fang Chen ; Michael Kastoryano ; Fernando Brandão; |
| 1166 | Data Generation for Triple-Quantum-Dot Machine-Learning Autotuning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This model can determine the region of parameter-space that a device is in (which dots are empty / filled / overfilled), using only a small number of local measurements. |
Donovan Buterakos ; Jacob Taylor ; Justyna Zwolak; |
| 1167 | More Efficient Exchange-only Quantum Gates Via Reinforcement Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: There has recently been rapid progress in the research of spin qubits [1], including the realization of exchange-only qubits [2,3]. |
Violeta Ivanova-Rohling ; Niklas Rohling ; Guido Burkard; |
| 1168 | Automated Tuning of Interdot Coupling for Pauli-Spin Blockade Readout Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present progress toward an automated method for setting the tunnel rate between two quantum dots used for PSB readout which ensures appropriate charge relaxation prior to measurement. |
Raj Katti; |
| 1169 | Methods for Automating Quantum Dot Gate-voltage Tuning from A Cold Start Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present a step-by-step procedure for choosing – tuning up – gate voltages starting from a blank slate. |
Tyler Kovach; |
| 1170 | Applied Machine Learning for Central-spin Dynamics: Characterizing The Charge and Spin Environment Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study the dynamics of the Gaudin magnet ("central-spin model") using machine-learning methods [1]. |
William Coish ; Felix Fehse ; Victor Wei ; Alev Orfi; |
| 1171 | Optimal Control of A SiGe-Quantum Bus for Coherent Electron Shuttling in The Presence of Material Defects Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this contribution, we theoretically explore the capabilities for bypassing defect centers using optimally engineered control signals that allow for a quasi-adiabatic passage of the electron through the channel without reducing the velocity. |
Lasse Ermoneit ; Burkhard Schmidt ; Jürgen Fuhrmann ; Thomas Koprucki ; Arnau Sala ; Lars Schreiber ; Markus Kantner; |
| 1172 | Proximal Quantum Control of Spin Qubits with Highly Localized Control Field from Magnetic Skyrmions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a technique that employs a combination of divergent and convergent magnetic skyrmions to produce a control field capable of manipulating spin qubits with high fidelity. |
Md Fahim F Chowdhury ; Md Mahadi Rajib ; Mohamad Niknam ; Robert Schwartz ; Louis-S. Bouchard ; Jayasimha Atulasimha; |
| 1173 | Accelerating Experiments for Advanced and Coherent Control of Spin-Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: The transition into the Noisy Intermediate-Scale Quantum (NISQ) era requires a significant number of logical qubits, which has led to experimental overheads becoming one of the … |
Yigitcan Uzun ; Nicolas Piot ; Bilal Kalyoncu ; Damaz de Jong ; Jules van Oven ; Cornelis Bultink; |
| 1174 | Gate-biased Illumination Enables Low Voltage Operation of Si/SiGe Quantum Dot Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we implement a method to change the operating voltages in-situ, and we demonstrate how to transform a quantum dot qubit with initial operating voltages over 500 mV to one that can be run with no gate voltage exceeding 100 mV. |
Jared Benson ; Sanghyeok Park ; Owen Eskandari ; Michael Wolfe ; Brighton Coe ; John Dodson ; Susan Coppersmith ; Mark Friesen ; Mark Eriksson; |
| 1175 | Scalable Microwave Modulation at Cryogenic Temperatures for Qubit Control Using High-kinetic-inductance Superconductors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we report on continued efforts to develop a multi-channel cryogenic qubit control architecture that can address multiple qubits while utilizing only a single local oscillator. |
Mridul Pushp ; Noah Johnson ; Bo Zhen ; Anthony Sigillito; |
| 1176 | A Microwave-activated Phase Gate Using A Superconducting Coupler for Remote Entanglement of Two Quantum Dot Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose a microwave-activated phase gate in which a superconducting coupler is driven to implement a CZ gate between two remote quantum dot qubits. |
Harry Kang ; Ilan Rosen ; Max Hays ; Kyle Serniak ; Jeffrey Grover ; William Oliver; |
| 1177 | Cavity-mediated Entanglement of Parametrically Driven Spin Qubits Via Sidebands Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Nevertheless, tuning and scaling challenges remain for applying this approach to more than two qubits. |
Vanita Srinivasa ; Jacob Taylor ; Jason Petta; |
| 1178 | Direct Entanglement Protocol for Three Cavity-coupled Spin Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we propose a scheme for generating single-shot three-qubit entanglement in an all-to-all geometry using an electrically controlled ac magnetic field. |
Stephen McMillan ; Guido Burkard; |
| 1179 | A Superconducting Cavity Qubit with Tens of Milliseconds Single-photon Coherence Time Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce a quantum memory using a novel niobium cavity controlled by a weakly-coupled transmon ancilla. |
Serge Rosenblum ; Ofir Milul ; Barkay Guttel ; Uri Goldblatt ; Sergey Hazanov ; Lalit Joshi ; Daniel Chausovsky ; Nitzan Kahn ; Engin Ciftyurek ; Fabien Lafont; |
| 1180 | Strategies and Trade-offs for Controllability and Memory Time of Microwave Cavities in Circuit QED: Part I Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our work explores a potentially viable roadmap towards using ultra-high-quality microwave cavity resonators for storing and processing information encoded in bosonic qubits. |
Ondrej Cernotik ; Iivari Pietikäinen ; Alec Eickbusch ; Aniket Maiti ; John Garmon ; Radim Filip ; Steven Girvin; |
| 1181 | Strategies and Trade-offs for Controllability and Memory Time of Microwave Cavities in Circuit QED: Part II Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our work explores a potentially viable roadmap towards using ultra-high-quality microwave cavity resonators for storing and processing information encoded in bosonic qubits. |
Iivari Pietikäinen ; Ondrej Cernotik ; Alec Eickbusch ; Aniket Maiti ; John Garmon ; Radim Filip ; Steven Girvin; |
| 1182 | Building A 3D Quantum Processing Unit Using A High-coherence SRF Cavity Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we introduce a novel QPU design based on TESLA cavity aimed at maintaining a large quality factor. |
Taeyoon Kim ; David Zanten ; Silvia Zorzetti ; Mustafa Bal ; Francesco Crisa ; Sabrina Garattoni ; Daniel Bafia ; Oleg Pronitchev ; Roman Pilipenko ; Shaojiang Zhu ; Xinyuan You ; Ziwen Huang ; Akshay Murthy ; Srivatsan Chakram ; Jens Koch ; Anna Grassellino ; Tanay Roy ; Yao Lu ; Alexander Romanenko; |
| 1183 | Progress on 3D Qudit Architecture with High-coherence SRF Cavities Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation, we demonstrate successful integration of superconducting qubits with a single-cell Nb SRF cavities. |
Taeyoon Kim ; Alexander Romanenko ; David Zanten ; Tanay Roy ; Yao Lu ; Silvia Zorzetti ; Mustafa Bal ; Roman Pilipenko ; Shaojiang Zhu ; Srivatsan Chakram ; Anna Grassellino; |
| 1184 | Enhancing Photon Lifetime in Coupled Superconducting Cavities Through Phase Control Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present our study of the photon lifetime of two co-resonant superconducting cavities coupled by a coaxial cable with a tunable phase parameter. |
Changqing Wang ; Oleksandr Melnychuk ; Crispin Contreras-Martinez ; Yuriy Pischalnikov ; Oleg Pronitchev ; Bianca Giaccone ; Roman Pilipenko ; Silvia Zorzetti ; Sam Posen ; Alexander Romanenko ; Anna Grassellino; |
| 1185 | Crosstalk-Robust Quantum Control in Multimode Bosonic Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This results in a frequency mismatch of the ancilla drive, lowering overall gate fidelities. To mitigate such coherent errors, we employ quantum optimal control to engineer ancilla pulses that are robust to the frequency shifts. |
Xinyuan You ; Yunwei Lu ; Taeyoon Kim ; Doga Kurkcuoglu ; Shaojiang Zhu ; David Zanten ; Tanay Roy ; Yao Lu ; Srivatsan Chakram ; Anna Grassellino ; Alexander Romanenko ; Jens Koch ; Silvia Zorzetti; |
| 1186 | Control of A Long-lived Multimode Bosonic Memory with A Weakly Coupled Transmon Ancilla Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Critical challenges for the viability of this architecture include crosstalk errors that emerge from the dispersive interaction and ancilla errors which propagate to the cavity modes and limit cavity coherence via the inverse Purcell effect. We explore strategies to mitigate these errors by weakening the coupling between the transmon and the cavity modes and employing multimode versions of control protocols that use conditional displacements for fast gate operations [1]. |
Jordan Huang ; Thomas DiNapoli ; Eesh Gupta ; Shivam Patel ; Mustafa Bal ; Francesco Crisa ; Sabrina Garattoni ; Yao Lu ; Xinyuan You ; Gavin Rockwood ; Srivatsan Chakram; |
| 1187 | Holographic Quantum Simulations Using A 3D Circuit-QED System Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we will show, with theoretical simulations and preliminary experiments, how we can use the Hilbert space of a 3D superconducting cavity to build an MPS and show efficient control of the system in order to build more complex algorithms in the future. |
Ameya Riswadkar ; Josiah Cochran ; Theodore Shaw ; Zhuoqun Hao ; Yuxuan Zhang ; Andrew Potter ; Shyam Shankar; |
| 1188 | Digital Homodyne and Heterodyne Detection for Stationary Bosonic Modes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we show a protocol tailored for stationary cavities that yields measurement statistics identical to those from homo- or heterodyne detectors. |
Axel Eriksson ; Ingrid Strandberg ; Mikael Kervinen ; Baptiste Royer ; Simone Gasparinetti; |
| 1189 | Implementation of A Conditional Displacement Gate Using The Second-order Nonlinearity of A Cubic Transmon in A Planar Superconducting Circuit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This cross-Kerr interaction is a valuable control resource but can also act as a bit-flip error propagation channel during conditional gate operations. To address this issue, we present results on the implementation of the conditional displacement gate by harnessing the second-order nonlinearity of the cubic transmon [2,3], which is integrated into a planar superconducting circuit. |
Shotaro Shirai ; Yusuke Tominaga ; Ryo Maekura ; Genta Ando ; Atsushi Noguchi; |
| 1190 | CMOS-compatible Wafer-scale MOCVD of Superconducting TiN in Through Silicon Vias for 3D Integration of Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we applied a standard production tool designed for 200 mm wafers to metalize superconducting TSVs using metal-organic chemical vapor deposition (MOCVD). |
Alexandra Schewski ; Simon Lang ; Ulrich Schaber ; Armin Klumpp ; Felix Rucker ; Oscar Gargiulo ; Daniela Zahn ; Ramon Linke ; Johannes Weber ; Christoph Kutter ; Rui Pereira ; Marc Tornow ; Wilfried Lerch ; Ignaz Eisele; |
| 1191 | Electrical Characterization of Metal-Insulator-Metal Contacts for Superconducting Qubits Fabricated with CMOS Production Tools Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we focus on comprehensive studies of Al-AlOx-Al MIM contacts with different sizes from 0.04 µm 2 to 1600 µm 2 fabricated on 200 mm silicon wafers with CMOS production tools. |
Simon Lang ; Alexandra Schewski ; Ignaz Eisele ; Mauro Keck ; Leonhard Sturm-Rogon ; Johannes Weber ; Rui Pereira ; Wilfried Lerch ; Christoph Kutter; |
| 1192 | Chip Packaging with Improved Microwave Performance for Superconducting Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: [1] Quantum Machines and QDevil have developed a chip packaging solution called QCage, optimized for low loss and decoherence, reflection free transmission and free from resonances. |
Søren Andersen ; Merlin von Soosten ; Fabio Ansaloni ; Jonatan Kutchinsky; |
| 1193 | Superconducting Through-silicon Vias As Capacitive Elements in Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will discuss our recent work utilizing high-quality superconducting through-silicon vias (TSVs) as the capacitive element in both qubits and readout resonators. |
Thomas Hazard; |
| 1194 | Hermetic Packaging for Cryogenic Experiments Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we introduce our newest commercial packaging, used to perform experiments in completely sealed environments at cryogenic temperatures. |
Fabio Ansaloni ; Kyle Castoria ; David Rees ; Heenjun Byeon ; Merlin von Soosten ; Søren Andersen ; Jonatan Kutchinsky; |
| 1195 | On Scaling Superconducting Qubits with 3D-integration Modules in An Advanced 300mm-fabrication Environment Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, it’s important to note that while lift-off techniques have been successful, they present compatibility challenges when integrated into standard foundry-manufacturing processes. We report on the realization of highly coherent transmon qubits without the need for shadow evaporation and lift-off, and 3D-integration modules that are promising to integrate with such qubits in a 300mm fab environment. |
A. M. Vadiraj ; Jacques Van Damme ; Rohith Acharya ; Shana Massar ; Jaber Derakhshandeh ; Daniel Perez Lozano ; Tsvetan Ivanov ; Ryan Leong ; Yann Canvel ; Bart Raes ; Massimo Mongillo ; Anton Potocnik ; Danny Wan ; Kristiaan De Greve; |
| 1196 | Recent Results on Manufacturing Spin and Superconducting Qubits in Advanced 300 Mm Fabrication Environments Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will report on recent progress in manufacturing spin and superconducting qubits using advanced 300 mm manufacturing lines at imec. |
Kristiaan De Greve ; Yann Canvel ; Imri Fattal ; Clement Godfrin ; Alexander Grill ; Stefan Kubicek ; Julien Jussot ; Tsvetan Ivanov ; Ryan Leong ; Roy Li ; Shana Massar ; Massimo Mongillo ; Daniel Perez Lozano ; Antoine Pacco ; Anton Potocnik ; Bart Raes ; George Simion ; A. M. Vadiraj ; Jacques Van Damme ; Danny Wan; |
| 1197 | Realizing Scalable Quantum Processing Units (QPUs): Achievements and Prospects from IQM Finland Oy Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Focusing on the development of quantum processors based on superconducting circuits, we present our latest achievements in the field. |
Wei Liu ; Jyrgen Luus ; Seung-Goo Kim ; Alexander Plyushch ; Wei Qiu ; Tianyi Li ; Caspar Ockeloen-Korppi ; Alessandro Landra ; Leonid Abdurakhimov ; Lihuang Zhu ; Francesca Tosto ; Chun Fai Chan ; Lily Yang ; Anton Komlev ; Kunal Mitra ; Mario Palma ; Máté Jenei ; Magdalena Lehmuskoski ; Martin Thornton ; Andrew Guthrie ; Matti Partanen ; Kuan Tan ; Juha Hassel ; Hans Peter Ehweiner; |
| 1198 | Qubit Frequency Tuning Via Electron-beam Irradiation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a technique to tune the frequency of a superconducting qubit via electron-beam irradiation of the Josephson junction element. |
Connor Shelly ; Yashwanth Balaji ; Narendra Acharya ; Robert Armstrong ; Kevin Crawford ; Sergey Danilin ; Thomas Dixon ; Oscar Kennedy ; Renuka Pothuraju ; Kowsar Shahbazi ; Ken Westra ; OQC Quantum Hardware Team; |
| 1199 | Self-heating of Qubit Input-output Lines: Implications for Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Specifically, we describe how the qubit and time-constants T1 and T2 are governed by the I/O thermal noise and can be limited at varying operating conditions, i.e., under different attenuation schemes, and noise spectral densities. |
Massimo Borrelli ; Slawomir Simbierowicz ; Volodymyr Monarkha ; Russell Lake; |
| 1200 | Qubit As A Reflectometer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Through analytical modeling of the sequences, we identify that microwave reflections with a relatively long round trip time lead to a long tail of the microwave pulse causing gate error. |
Yaxing Zhang ; Benjamin Chiaro; |
| 1201 | Transmon-based Single-photon Generator Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We are developing a device consisting of a superconducting transmon qubit that is strongly coupled to a transmission line that we plan to use in several quantum technology applications and for calibration purposes. |
Danilo Labranca ; Adam Sirois ; Manuel Castellanos-Beltran ; David Olaya ; John Biesecker ; Andrea Giachero ; Peter Hopkins; |
| 1202 | Applications of Symmetry Testing in Quantum Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Additionally, by making particular choices of groups and representations, these algorithms can be employed to gleam useful information about a state or system. In this work, we review notions of symmetry for states and Hamiltonians, and give algorithms for testing these on a quantum computer. |
Margarite LaBorde ; Soorya Rethinasamy ; Mark Wilde; |
| 1203 | Design QAOA By Alignment Between Initial State and Mixer for Constrained Optimization Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this paper, we demonstrate that the intuition from the adiabatic algorithm applies to the task of choosing the QAOA initial state. |
Zichang He ; Ruslan Shayludin ; Shouvanik Chakrabarti ; Dylan Herman ; Changhao Li ; Yue Sun ; Marco Pistoia; |
| 1204 | Simulation of The Homogeneous Electron Gas on Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will report on the opportunities and limits of many-body calculations of the homogeneous electron gas (HEG) when performed on small-scale quantum computers and a variety of quantum simulators. |
Justin Lietz ; Alessandro Baroni ; Peter Groszkowski ; Eduardo Coello Perez ; Mariia Karabin ; Titus Morris ; Markus Eisenbach; |
| 1205 | A Look at The Truths and Misconceptions of The Variational Quantum Eigensolver and The Implications of Overparameterization Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we investigate loss landscapes of the variational quantum eigensolver (VQE) by quantifying the number of local minima through empirical analyses. |
Diana Chamaki ; Farshud Sorourifar ; Saavanth Velury ; Cory Hargus ; Katherine Klymko ; Kathleen Hamilton ; Stuart Hadfield ; Wayne Mullinax ; Joel Paulson ; David Bernal Neira ; Grant Rotskoff ; Norm Tubman; |
| 1206 | Efficient Quantum Circuits Based on The Quantum Natural Gradient Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To that end, we propose symmetry-conserving modified quantum approximate optimization algorithm~(SCom-QAOA) circuits. |
Ananda Roy ; Robert Konik ; Sameer Erramilli; |
| 1207 | Finite-depth Scaling of Translationally Invariant Variational Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we focus on a particularly simple translation invariant ansatz for VQE, and investigate how the energy error scales with the depth of the circuit. |
Tomohiro Soejima ; Bradley Mitchell; |
| 1208 | Quantum-classical Data Conversion Using Tensor Network Optimization Techniques Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This renders them unsuitable for today’s NISQ devices. In this context, we investigate a technique to construct an approximate improvement for amplitude encoding circuits, taking into account classical information stored in a floating-point number array. |
Tomonori Shirakawa ; Hiroshi Ueda ; Seiji Yunoki; |
| 1209 | Learning Conservation Laws in Unknown Quantum Dynamics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a learning algorithm for discovering conservation laws given as sums of geometrically local observables in quantum dynamics. |
Yongtao Zhan ; Yu Tong ; Hsin-Yuan Huang ; Andreas Elben; |
| 1210 | Quantum Graph Neural Network for 3D Point Cloud Inference Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This study introduces a quantum machine learning framework based on equivariant quantum graph circuits, which efficiently captures the intrinsic symmetry of graph-related problems. |
Daiwei Zhu ; Evgeny Epifanovsky ; Jason Iaconis; |
| 1211 | End-to-end Complexity for Simulating The Schwinger Model on Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Specifically, we propose an implementation of block-encoding of the Schwinger model Hamiltonian, which has a normalization factor of O( N 3) and requires O( N+log 2( N/ ε)) T gates. |
Kazuki Sakamoto ; Hayata Morisaki ; Junichi Haruna ; Etsuko Itou ; Keisuke Fujii ; Kosuke Mitarai; |
| 1212 | End-to-end Quantum Algorithm for The Response Function of Coupled Oscillators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present an end-to-end quantum algorithm for computing the response function of coupled oscillators. |
Sven Danz ; Frank Wilhelm-Mauch ; Mario Berta ; Alessandro Ciani; |
| 1213 | Invited Speaker Selection: C.-C. Joseph, WangTitle : Quantum Variational Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We validate our ideas through toy spin models and simple quantum chemistry models to demonstrate the algorithm and protocols. |
C.-C. Joseph Wang ; Titus Morris ; Phillip Lotshaw ; Vicente Leyton Ortega ; Daniel Claudino ; Travis Humble; |
| 1214 | Numerical Simulation of Statistical Properties of Matchgate Shadows Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This has found application in proposed near-term algorithms like QC-AFQMC, motivating further investigation into the behaviour of these measurement techniques. We study statistical properties of this scheme in numerical experiments for different systems, give evidence to justify a Gaussian noise model when simulating measurements of computational basis states and non-orthonal Slater determinants as used in AFQMC and compare with theoretical bounds of the variance. |
Gian-Luca Anselmetti ; Maximilian Scheurer ; Oumarou Oumarou ; Christian Gogolin ; Matthew Kiser ; Davide Vodola ; Michael Streif; |
| 1215 | Experimental Realization of A Tunable Non-Hermitian, Nonlinear Microwave Dimer: Experiment and Results Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Furthermore, the amplifiers introduce new types of nonlinearities beyond the typical Kerr nonlinearities explored in qubit-cavity systems— making this a new experimental platform for quantum simulation, nonlinear dynamics, and exploration of the intersections between Hermitian and non-Hermitian physics. This first talk will describe our experimental platform and results. |
Juan Sebastian Salcedo Gallo ; Alexander Carney ; Majd Hamdan ; Tunmay Gerg ; Daniel Smallwood ; Vincent Flynn ; Michiel Burgelman ; Lorenza Viola ; Mattias Fitzpatrick; |
| 1216 | Experimental Realization of A Tunable Non-Hermitian, Nonlinear Microwave Dimer: Theory and Model Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Furthermore, the amplifiers introduce new types of nonlinearities beyond the typical Kerr nonlinearities explored in qubit-cavity systems— making this a new experimental platform for quantum simulation, nonlinear dynamics, and exploration of the intersections between Hermitian and non-Hermitian physics. This second talk will describe our theoretical model and future directions. |
Mattias Fitzpatrick ; Juan Salcedo-Gallo ; Lorenza Viola ; Daniel Smallwood ; Majd Hamdan ; Tunmay Gerg ; Tunmay Gerg ; Michiel Burgelman ; Vincent Flynn ; Alexander Carney; |
| 1217 | Hadronic Spin-dependent Generalized Parton Distribution Functions Via Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Testing detailed predictions of QCD and searching for phenomena at the LHC requires knowing spin dependent Parton Distribution Functions (PDFs) for quarks and gluons. PDFs contain … |
Carter Gustin ; Gary Goldstein; |
| 1218 | Quantifying Noise Tolerance of Arbitrary Trotterized Quantum Simulation Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: On noisy quantum devices this introduces a trade-off between the reduction in Trotter error and noise arising from the growth in circuit depth. We quantify this trade-off for Trotterized algorithms of arbitrary circuit depth subject to Markovian noise channels and determine a scalable threshold for algorithm noise tolerance. |
Nathan Myers ; Woo-Ram Lee ; Vito Scarola; |
| 1219 | Realization of Chiral Wave Functions in Quantum Computer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we realize the chiral fermion by designing the discrete Hamiltonian using the current IBM quantum computer platform (IBM-Q). |
Chan Bin Bark ; Moon Jip Park ; Youngseok Kim; |
| 1220 | The Effect of Gate Errors on Hamiltonian Simulation Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we analyze how gate errors affect the measurements of observables in quantum circuits that represent the dynamics of a Hamiltonian under a Trotter decomposition. |
Eli Chertkov ; Michael Foss-Feig; |
| 1221 | Chasing Quantum Advantage in The H-series Processors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will go over the system architecture, the performance levels achieved, and our efforts toward important algorithmic demonstrations. |
David Hayes; |
| 1222 | Simulating Entanglement Dynamics on Near-term Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we simulate the quench dynamics of the Su–Schrieffer–Heeger model on noisy intermediate-scale quantum (NISQ) computers. |
Huai-Chun Chang ; Yu-Cheng Lin ; Hsiu-Chuan Hsu; |
| 1223 | Exploring The Lieb Lattice Phase Diagram Using Rydberg Atom Quantum Simulators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our work highlights the rich equilibrium physics that can be probed in analog quantum simulators. |
Daan Camps ; Mark Hirsbrunner ; Milan Kornjaca ; Fangli Liu ; Katherine Klymko ; Siva Darbha ; Jan Balewski ; Rhine Samajdar ; Shengtao Wang ; Pedro Lopes; |
| 1224 | Robustness of Quantum Correlations in Topological States in Su-Schrieffer–Heeger Model Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In a 5 site lattice, we observe a zero-energy edge state that theory predicts is symmetry-protected. |
Dmytro Dubyna ; Jamal Busnaina ; Zheng Shi ; Jimmy Hung ; Ibrahim Nsanzineza ; Christopher Wilson; |
| 1225 | Downfolding Complex Materials Problems Onto Model Hamiltonians for Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate for a variety of systems that quantum simulation of downfolded Hamiltonians reproduces key properties, thus establishing downfolding as a promising route to achieve near-term simulation of materials on quantum hardware. |
Antonios Alvertis ; Norm Tubman; |
| 1226 | Simulating A Mach-Zehnder Interferometer on A Quantum Computer for Detecting Mutual Fractional Statistics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose to use digital quantum devices to simulate a Mach-Zehnder interferometer for probing the quasiparticles mutual fractional statistics. |
Shiyu Zhou ; Yi Teng ; Claudio Chamon ; Claudio Castelnovo ; Armin Rahmani; |
| 1227 | Cheaper and Noise Resilient Ground State Preparation Using Quantum Eigenvector Continuation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, the small spectral gaps and protected level crossings remain an issue. In this work we extend the use of EC for the systems with these conditions by varying more than one parameter and choosing the subspace vectors from across different parameters. |
Anjali Agrawal ; Akhil Francis ; Alexander Kemper; |
| 1228 | On Quantum Backpropagation, Information Reuse, and Cheating Measurement Collapse Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that achieving backpropagation scaling is impossible without access to multiple copies of a state. With this added ability, we introduce an algorithm with foundations in shadow tomography that matches backpropagation scaling in quantum resources while reducing classical auxiliary computational costs to open problems in shadow tomography. |
Amira Abbas; |
| 1229 | Connecting Channel Expressiveness to Gradient Magnitudes and Noise Induced Barren Plateaus Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we propose several measures of expressiveness for quantum channels and study their properties, highlighting how average non-unitary channels differ from average unitary channels. |
Matthew Duschenes ; Diego García-Martín ; Martin Larocca ; Zoe Holmes ; Marco Cerezo; |
| 1230 | Generalization Error in Quantum Machine Learning in The Presence of Sampling Noise Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we employ methodologies from statistical mechanics to calculate the learning curve of a generic quantum machine learning system, when the training set contains a large but finite number of samples. |
Fangjun Hu ; Xun Gao ; Hakan Tureci; |
| 1231 | Demonstration of A Quantum Machine Learning Algorithm Beyond The Coherence Time Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we introduce a machine learning algorithm, NISQRC, that can be trained to reliably produce inference on a signal of arbitrary length, not limited by the depth of the circuit. |
Hakan Tureci ; Fangjun Hu ; Saeed Khan ; Nicholas Bronn ; Guilhem Ribeill ; Gerasimos Angelatos ; Graham Rowlands; |
| 1232 | Reduction of Finite Sampling Noise in Quantum Neural Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present a new technique to mitigate the finite-sampling noise in QNNs. |
David Kreplin ; Marco Roth; |
| 1233 | Full-stack Quantum Machine Learning in High Energy Physics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: With this talk we discuss the potentialities of Qibo as full-stack environment to test and deploy QML procedures. To do this, we present a series of tests we performed on a superconducting device to improve a gradient descent training on chip with the aim of fitting the proton Parton Distribution Functions (PDFs). |
Matteo Robbiati; |
| 1234 | Quantum Inception Score As An Expressivity Measure of The Quantum Generative Models Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose the quantum inception score, which quantifies the richness of the expressive power of the quantum generative models. |
Akira Sone ; Naoki Yamamoto; |
| 1235 | Problem-informed Graphical Quantum Generative Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we propose a framework for using Markov networks in the construction of quantum circuit Born machines, that outperform previous problem-agnostic models. |
Bence Bakó ; Zsófia Kallus ; Zoltan Zimboras; |
| 1236 | Generative Quantum Machine Learning Via Denoising Diffusion Probabilistic Models Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Inspired by the classical counterpart, we propose the quantum denoising diffusion probabilistic models (QuDDPM) to enable efficiently trainable generative learning of quantum data. |
Bingzhi Zhang ; Peng Xu ; Xiaohui Chen ; Quntao Zhuang; |
| 1237 | Reinforcement Learning-Assisted Shot Assignment for Improved Convergence in Variational Quantum Eigensolver Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This work introduces reinforcement learning-assisted shot assignment strategies to mitigate measurement errors and improve VQE convergence. |
Linghua Zhu ; Senwei Liang ; Chao Yang ; Xiaosong Li; |
| 1238 | Optimizing ZX-Diagrams with Deep Reinforcement Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we bring together ZX-diagrams with reinforcement learning, a machine learning technique designed to discover an optimal sequence of actions in a decision-making problem, and show that our reinforcement learning agent can significantly outperform other optimization techniques like a greedy strategy and simulated annealing. |
Maximilian Nägele ; Florian Marquardt; |
| 1239 | Quantum Diamond Microscope for Real-space NMR Imaging Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We are developing a quantum diamond microscope (QDM) to provide real-space NMR imaging with micron-scale spatial resolution and millimeter-scale field-of-view. |
Zechuan Yin ; Jiashen Tang ; Connor Hart ; Smriti Bhalerao ; John Blanchard ; Ronald Walsworth; |
| 1240 | Quantum Sensing of Magnetic Materials By Spin Defects in Hexagonal Boron Nitride Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Taking advantage of boron vacancy spin defects in hexagonal boron nitride (hBN), we report nanoscale quantum sensing and imaging of static and dynamic magnetic field environment of low-dimensional magnetic materials under a broad range of experimental conditions. |
Jingcheng Zhou ; Mengqi Huang ; Di Chen ; Hanyi Lu ; Gerald Yan ; Hailong Wang ; Chunhui Du; |
| 1241 | All-optical, Microwave-free NV-Diamond Magnetometer for Weak Magnetic Field Environments Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we demonstrate an all-optical, microwave-free NV-diamond magnetometer in the presence of weak or no bias magnetic field (<20 G). |
Xiechen Zheng ; Jeyson Támara-Isaza ; Kristine Ung ; John Blanchard ; Connor Hart ; Ronald Walsworth; |
| 1242 | Ultrahigh Vacuum Surface Chemistry for Nanoscale Sensors in Diamond Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To prepare pristine diamond surfaces and systematically study the surface noise, we have constructed a novel cluster tool combining surface preparation and spectroscopy with cryogenic, confocal microscopy of single NV centers inside the same ultrahigh vacuum (UHV) environment. |
Zhiyang Yuan ; Lila Rodgers ; Jared Rovny ; Sorawis Sangtawesin ; Mattias Fitzpatrick ; Srikanth Srinivasan ; James Allred ; Patryk Gumann ; Nathalie de Leon; |
| 1243 | Diamond Defect-based Sensing of Programmably Patterned Molecular Spin Arrays with Single-spin Sensitivity Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we combine a DNA-based patterning technique with nitrogen-vacancy (NV) quantum sensors in diamond to sense 2D arrays of molecular spins programmably patterned via a monolayer of DNA origami on a diamond surface. |
Zhiran Zhang ; Taylor Morrison ; Lillian Hughes ; Ruiyao Liu ; Deborah Fygenson ; Ania Bleszynski Jayich; |
| 1244 | Probing Critical Dynamics in 2D CrSBr Via NV Spin Decoherence Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our work demonstrates that NV spin decoherence can be used as a powerful probe of critical behavior in 2D magnetic materials on the microscopic scale. |
Mark Ziffer ; Benedikt Ursprung ; Aya Batoul Tazi ; Zhiyang Yuan ; Artur Lozovoi ; Michael Ziebel ; Xavier Roy ; Nathalie de Leon ; Carlos Meriles ; Jonathan Owen ; P. James Schuck ; Abhay Pasupathy; |
| 1245 | Nanotube Spin Defects for Omnidirectional Magnetic Field Sensing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our findings suggest that these BNNT spin defects possess a spin S=1/2 ground state without an intrinsic quantization axis, leading to orientation-independent magnetic field sensing. We harness this unique feature to observe anisotropic magnetization of a 2D magnet in magnetic fields along orthogonal directions. |
Xingyu Gao ; Sumukh Vaidya ; Saakshi Dikshit ; Peng Ju ; Kunhong Shen ; Yuanbin Jin ; Shixiong Zhang ; Tongcang Li; |
| 1246 | Spin Defects in Aqueous Environments and Confined Geometries Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The nitrogen-vacancy (NV) center-based spectrometer is a promising platform for nano-NMR: the defect characteristic decoherence time (T2) can be used, for example, to observe the time evolution of proton spins from simple molecules located in proximity of a diamond surface. In this work, we analyzed the magnetic field induced by protons of water in confined geometries and how this affects the coherence times of spin defects in two-dimensional materials, including graphene and h-BN. |
Alfonso Castillo; |
| 1247 | Towards Geometric Phase Magnetometry in Nitrogen-Vacancy Center Ensembles Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To circumvent these limitations, Arai et al. (2018) introduced the use of geometric phases for magnetometry with a single NV center. Extending these methods to an ensemble of NV centers, we examine the impact of magnetic disorder and control field inhomogeneities through numerical simulations. |
Saipriya Satyajit ; Jner Tzern Oon ; Zechuan Yin ; Jiashen Tang ; Christopher Jarzynski ; Ronald Walsworth; |
| 1248 | Nuclear Magnetic Resonance with A Single NV Scanning Probe Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In a proof-of-concept demonstration, we show the feasibility of studying nanoscale hydrophilicity and hydrophobicity by using a single NV probe. |
Zhewen Xu ; Konstantin Herb ; Gabriel Puebla Hellmann ; Christian Degen; |
| 1249 | AC Sensing Wtih Spin Locked 13C Nuclear Spins Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we demonstrate an AC sensing scheme in high field using hyperpolarized 13C nuclear spins in diamonds that can be exploited to achieve submicronscale NMR microscopy. |
Leo Moon; |
| 1250 | Decoherence of The Central Spin in Dissipative Spin Baths Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This work presents a new methodology based on cluster correlation expansion to study how a central spin interacts with other spins in a dissipative bath. |
Mykyta Onizhuk ; Yuxin Wang ; Jonah Nagura ; Aashish Clerk ; Giulia Galli; |
| 1251 | Decohered Symmetry-Protected Topological States As A Resource for Quantum Communication Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Quantum many-body states in the presence of decoherence can host a variety of orders, as diag- nosed by measures of correlations in multiple copies of the decohered state. Here, we argue that some of these measures, such as the “strange correlator” in decohered symmetry protected topo- logical (SPT) states are directly related to the ability to use the decohered state as a resource for the coherent transfer of classical or quantum information. |
Zhehao Zhang ; Utkarsh Agrawal ; Sagar Vijay; |
| 1252 | Strong Hole-photon Coupling in Planar Ge: Probing The Charge Degree and Wigner Molecule States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we present the strong coupling between hole charge qubits, defined in a double quantum dot (DQD) hosted in a planar Ge heterostructure, and microwave photons confined in a high-impedance superconducting quantum interference device (SQUID) array resonator. |
Fabian Oppliger ; Franco De Palma ; Wonjin Jang ; Stefano Bosco ; Marián Janík ; Georgios Katsaros ; Giovanni Isella ; Daniel Loss ; Pasquale Scarlino; |
| 1253 | Micromagnets for Novel Qubits for Quantum Computation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present calculations of the magnon spectrum in the presence of various forms of anisotropy, and analyze the dependence of non-linear magnon spectrum on the anisotropy strength. |
Shashikant Kunwar ; Michael Flatté; |
| 1254 | Exchange Cavity Magnon-Polaritons in Metallic Thin Films Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we report on the observation of coupling between the first-order exchange magnon mode in metallic thin film Permalloy (Py) with a cavity photon mode at room temperature. |
Mawgan Smith ; Adam Lafferty ; Alban Joseph ; Matthew McMaster ; Jade Scott ; William Hendren ; Robert Bowman ; Martin Weides ; Rair Macêdo; |
| 1255 | Addressing Spins at The Clock Transitions with A Frequency and Bandwidth-tunable Superconducting Resonator Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we will present a superconducting circuit architecture accomplishing both, allowing strong coupling to an ensemble of bismuth dopants in silicon. |
Yutian Wen ; Tristan Lorriaux ; Vishal Ranjan ; Denis Vion ; Benjamin Huard ; Audrey Bienfait ; Emmanuel Flurin ; Patrice Bertet; |
| 1256 | Fabrication and Characterization of Flux-tunable Qubits in An InAs-Al 2DEG System Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present continuous-wave measurements on a split Cooper pair box qubit in an epitaxial Al-InAs 2DEG system. |
Shukai Liu ; Arunav Bordoloi ; Vladimir Manucharyan; |
| 1257 | Spin-Energy Entanglement of A Time-Focused Neutron Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Analogous to violation of Bell-type inequalities to prove non-classical correlations, we constructed a Clauser-Horne-Shimony-Holt (CHSH) contextuality witness using the spin and energy phases, and observed a clear breach of the classical bound |S| <= 2, obtaining S = 2.4. |
Jonathan Leiner ; Steve Kuhn ; Samuel McKay ; Johanna Jochum ; Fankang Li ; Abu Ashik Md Irfan ; Fumiaki Funama ; Denis Mettus ; Lukas Beddrich ; Christian Franz ; Jiazhou Shen ; Steve Parnell ; Rob Dalgliesh ; Matt Loyd ; Niels Geerits ; Gerardo Ortiz ; Christian Pfleiderer ; Roger Pynn; |
| 1258 | First Measurements with Three-Josephson Junction Radiofrequency Quantum Upconverters Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present first experimental results from Al-AlO-Al three-junction RQUs. |
Jason Corbin ; Elizabeth van Assendelft ; Tori Ankel ; Chelsea Bartram ; Saptarshi Chaudhuri ; Hsiao-Mei Cho ; Stephen Kuenstner ; Ameya Kunder ; Dale Li ; Nicholas Rapidis ; Farhan Rawnak ; Chiara Salemi ; Maria Simanovskaia ; Jyotirmai Singh ; Dean Wright ; Betty Young ; Kent Irwin; |
| 1259 | Modeling and Simulation of Radiofrequency Quantum Upconverters Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We model and simulate signal propagation through our device and show that for weak microwave drives the Josephson interferometer inductance is a function of applied external flux. |
Elizabeth van Assendelft ; Jason Corbin ; Tori Ankel ; Chelsea Bartram ; Saptarshi Chaudhuri ; Hsiao-Mei Cho ; Stephen Kuenstner ; Ameya Kunder ; Dale Li ; Nicholas Rapidis ; Farhan Rawnak ; Chiara Salemi ; Maria Simanovskaia ; Jyotirmai Singh ; Dean Wright ; Betty Young ; Kent Irwin; |
| 1260 | Fluctuation Theorems for Arbitrary Measurement and Feedback Schemes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present a detailed FT that holds for arbitrary measurement and feedback schemes both in the classical as well as in the quantum regime. |
Patrick Potts ; Kacper Prech ; Peter Samuelsson; |
| 1261 | Observation of First- and Second-order Dissipative Phase Transitions in A Two-photon Driven Kerr Resonator Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present here the first comprehensive experimental and theoretical analysis of both first and second-order DPTs in a two-photon (i.e., parametrically) driven Kerr superconducting resonator. |
Guillaume Beaulieu ; Fabrizio Minganti ; Simone Frasca ; Vincenzo Savona ; Simone Felicetti ; Roberto Di Candia ; Pasquale Scarlino; |
| 1262 | Non-Hermitian Dynamics Without Loss Using Superconducting Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, following a proposal by Wang and Clerk [1], we describe a closed, four-mode quantum system able to simulate the dynamics of a PT-dimer consisting of two coupled resonators, one with gain and the other with loss, ideally without any actual dissipation that could introduce noise. |
Réouven Assouly ; Hanlim Kang ; Michael Gingras ; Bethany Niedzielski ; Hannah Stickler ; Jonilyn Yoder ; Mollie Schwartz ; Kyle Serniak ; Jeffrey Grover ; William Oliver; |
| 1263 | First Passage Times for Continuous Quantum Measurement Currents Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this letter we address the FPT of the stochastic measurement current in the case of continuously measured quantum systems. |
Gabriel Landi ; Steve Campbell ; Michael Kewming ; Anthony Kiely; |
| 1264 | Quantum Zeno Effect: Preventing A Photon from Exiting A Cavity Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we try to answer the question, as to whether the Zeno effect can stop stochastic decay events like a photon jump from a cavity. |
Vidul Joshi ; Akshay Koottandavida ; Alessandro Miano ; Rodrigo Cortiñas ; Benjamin Chapman ; Chris Wang ; Andy Ding ; Michel Devoret; |
| 1265 | Irreversibility Measure By Utilizing The Quantum Fluctuation Theorem of One-Time Measurement Scheme Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation, we present the application of the quantum fluctuation theorem of the one-time measurement scheme in characterizing the irreversibility. |
Kenji Maeda ; Tharon Holdsworth ; Sebastian Deffner ; Akira Sone; |
| 1266 | Stability Via Symmetry Breaking in Interacting Driven Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, we present an extremely general mechanism to circumvent this common problem [1]; when the Hamiltonian non-linearity effectively breaks symmetries of the underlying quadratic model at high photon density, it can restabilize the dynamics by forcing stable and unstable modes to hybridize. We analyze two concrete examples, showing that this is of practical as well as fundamental relevance. |
Andrew Pocklington ; Aashish Clerk; |
| 1267 | Stochastic Metrology and The Empirical Distribution Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study the problem of parameter estimation in time series stemming from general stochastic processes, where the outcomes may exhibit arbitrary temporal correlations. |
Joseph Smiga ; Marco Radaelli ; Felix Binder ; Gabriel Landi; |
| 1268 | Implementation of A Periodic Quantum Clock Based on Coherent Feedback Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We implement the coherent feedback clock on a superconducting circuit consisting of two coupled high-Q coplanar resonators, where one is rendered nonlinear by a Josephson junction embedded in the centre conductor. |
Stefan Zeppetzauer ; Leonardo Assis Morais ; Xin HE ; Gerard Milburn ; Arkady Fedorov; |
| 1269 | Heat Flow from A Measurement Apparatus Monitoring and Feedbacking A Dissipative Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we focus on the most fundamental quantum system, the qubit, as the measuring system. |
Tsuyoshi Yamamoto ; Yasuhiro Tokura; |
| 1270 | Exact Descriptions of Boundary-driven Quantum Spin Chains Using Hidden Time-reversal Symmetry Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we show this approach can be used in a far wider class of systems: a class of one-dimensional interacting spin chains with boundary driving and dissipation, where the steady states have a non-vanishing excitation current. |
Mingxing Yao ; Andrew Lingenfelter ; David Roberts ; Aashish Clerk; |
| 1271 | Quantum Algorithms 30 Years After Shor Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: I’ll reflect on our knowledge of quantum computing speedups, nearly 30 years after the discovery of Shor’s factoring algorithm. Some people expected Shor’s algorithm to be … |
Scott Aaronson; |
| 1272 | Thirty Years of Ion-Trap Computing TooJ. Ignacio Cirac Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will delineate the origin of our ideas, the venues where we first unveiled them, and how the team led by David Wineland and Christopher Monroe executed the initial experimental demonstration. |
Juan Cirac; |
| 1273 | Quantum Computing: Technology AND Science Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Peter Shor’s discovery of the factoring algorithm guaranteed that quantum computing would try to become a technology. This was a tall order, given that in 1994 quantum computing … |
David DiVincenzo; |
| 1274 | How Peter Shor Changed Physics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: I will discuss Peter Shor’s major discoveries in the 1990s (superpolynomial quantum speedups, quantum error correction, and fault-tolerant quantum computation), and some of the ways these developments have enriched our understanding of the physical world. |
John Preskill; |
| 1275 | Panel Discussion: Moderated By Sophia Economou Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Panel Discussion: Scott Aaronson Juan Cirac David DiVincenzo John Preskill … |
Sophia Economou; |
| 1276 | Defining Specifications for Si/SiGe Qubit Devices Using Multiphysics Modeling Methods Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In an industrial manufacturing environment, the design of qubit arrays will hence strongly benefit from defining clear specifications for various design parameters. Here, we employ a suite of Multiphysics simulation techniques to model Si/SiGe qubit devices and correlate them to experimental results to define parameter specifications for the qubits and for the devices hosting them. |
Fahd Mohiyaddin ; Roza Kotlyar ; Thomas Watson ; Mateusz Madzik ; Felix Borjans ; Bishnu Patra ; Lester Lampert ; Elliot Connors ; Joelle Corrigan ; Rostyslav Savytskyy ; Matthew Curry ; Daniel Keith ; Simon Schaal ; Florian Luthi ; Josh Ziegler ; Andrew Wagner ; Eric Henry ; Hubert George ; Ravi Pillarisetty ; Stefano Pellerano ; Jeanette Roberts ; Stephanie Bojarski ; Nathaniel Bishop ; James Clarke; |
| 1277 | Si/SiGe Spin Qubit with Full 300mm Process Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: At IMEC, we built a strategy to efficiently optimize all the process parameters to produce better qubits. |
Clement Godfrin ; Thomas Koch ; Ruoyu Li ; George Simion ; Stefan Kubicek ; Shana Massar ; Yann Canvel ; Julien Jussot ; Julien Jussot ; Roger Loo ; Yosuke Shimura ; Massimo Mongillo ; Danny Wan ; Wolfgang Wernsdorfer ; Kristiaan De Greve; |
| 1278 | Technology Computer-aided Design Simulations of Spin Qubits in Gated Double Quantum Dots Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we use the spin-qubit device modeling software package QTCAD to perform TCAD simulations of double-dot devices. |
Pericles Philippopoulos ; Raphaël Prentki ; Felix Fehse ; Mohammad Mostaan ; Marek Korkusinski ; Felix Beaudoin; |
| 1279 | Radio Frequency Reflectometry Measurements on Industrial CMOS Double Quantum Dot Using Superconducting Spiral Inductor Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In addition, a method for spin readout that minimizes the footprint is essential to achieve a large-scale quantum processor. In this context we present a reflectometry measurements of a spin compatible double quantum dot fully fabricated in a 300 mm integrated process at the IMEC manufacturing facility. |
Joffrey Rivard ; Claude Rohrbacher ; El Bachir Ndiaye ; Ataellah Youcef Bioud ; Matthieu Dominici ; Alexis Morel ; Dominic Leclerc ; Christian Lupien ; Clement Godfrin ; Roy Li ; Danny Wan ; Stefan Kubicek ; Kristiaan De Greve ; Eva Dupont-Ferrier; |
| 1280 | Tunnel and Capacitive Coupling Optimization in FDSOI Spin-qubit Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We aim to suppress the diagonal coupling in pseudo-2D array structures compared with the longitudinal and transverse couplings for a proper device operability. |
Valentin Labracherie ; Grégoire Roussely ; Heimanu Niebojewski ; Hamza Sahin ; Biel Martinez Diaz ; Jing Li ; Victor Millory ; Bruna Cardoso-Paz ; Tristan Meunier ; Maud Vinet ; Silvano De Franceschi ; Romain Maurand ; Boris Brun-Barriere ; Yann-Michel Niquet ; Benoit Bertrand; |
| 1281 | Tuning and Operation of Quantum Dots Using FPGA Tools Tailored for Spin Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Main challenges in the development of a spin qubit quantum processor include tuning of large arrays of quantum dots to compensate for dot-to-dot variability and fast operation of … |
Marc-Antoine Roux ; Joffrey Rivard ; Claude Rohrbacher ; Alexis Morel ; Dominic Leclerc ; El Bachir Ndiaye ; Larissa Njejimana ; Francesco Tafuri ; Brendan Bono ; Philip Krantz ; Roy Li ; Clement Godfrin ; Stefan Kubicek ; Danny Wan ; Kristiaan De Greve ; Marc-André Tétrault ; Eva Dupont-Ferrier ; Michel Pioro-Ladrière; |
| 1282 | Gate-based Spin Readout in Planar Si-MOS Quantum Dots Using An Off-chip Microwave Resonator Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we interface the quantum device fabricated on a 300mm wafer with a newly developed high-impedance off-chip resonator at 1.32 GHz. |
Frédéric Schlattner ; David Ibberson ; Ross C. Leon ; Michael Fogarty ; Jacob Chittock-Wood ; Sofia Patomäki ; Felix-Ekkehard von Horstig ; Stefan Kubicek ; Fernando Gonzalez-Zalba ; John Morton; |
| 1283 | Charge-noise Spectroscopy Using Exchange Oscillations in Si/SiGe Spin Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Electron spins in silicon quantum dots are a promising qubit platform due to their long coherence times, small footprint, and compatibility with industrial fabrication. Recent … |
Praveen Sriram ; Daniel Keith ; Thomas Watson ; Elliot Connors ; Felix Borjans ; Mateusz Madzik ; Jeanette Roberts ; James Clarke; |
| 1284 | Reconfigurable Quadruple Quantum Dot Linear Array with Tunable Couplings and Dispersive Sensing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We discuss measurement results on a device that we show can demonstrate spin-based manipulation and readout in a multi-gate CMOS device. |
Kalid Ulas ; Felix-Ekkehard von Horstig ; Heimanu Niebojewski ; M Fernando Gonzalez-Zalba ; Thierry Ferrus ; Charles Smith ; Frederico Martins; |
| 1285 | Fast Cryogenic Probing of Quantum Dot Spin Qubit Devices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we present a probe station that can be operated from room temperature down to 1.4 K [de Kruijf et al., Rev. Sci. |
Andreas Kuhlmann ; Simon Geyer ; Mathieu de Kruijf ; Felix Schupp ; Stephan Paredes ; Matthias Mergenthaler ; Dominik Zumbuhl ; Richard Warburton ; Toni Berger ; Lisa Sommer ; Rafael Eggli; |
| 1286 | Spin Qubits with Integrated Millikelvin CMOS Control Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: An alternate architecture 1 leverages heterogeneous ‘chiplet’ style packaging in which the control circuits and qubits are proximal, but positioned on separate dies and wired-up using dense, lithographically defined interconnects at milli-kelvin temperatures. Here, we report the realization of a cryo-CMOS control architecture (based on 28 nm FDSOI) and benchmark its performance using silicon MOS-style electron spin qubits 2. |
Samuel Bartee ; William Gilbert ; Kun Zuo ; Kushal Das ; Tuomo Tanttu ; Henry Yang ; Nard Stuyck ; Rachpon Kalra ; Sebastian Pauka ; Rocky Su ; Wee Han Lim ; Santiago Serrano ; Christopher Escott ; Fay Hudson ; Kohei Itoh ; Arne Laucht ; Andrew Dzurak ; David Reilly; |
| 1287 | Characterization of Cryo-CMOS Heating and Noise Properties Using Silicon Spin Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we employ an approach developed earlier in our group [1], utilizing Cryo-CMOS at an ultra-low temperature of 20 mK. |
Samuel Bartee ; Will Gilbert ; Kun Zuo ; Kushal Das ; Tuomo Tanttu ; Henry Yang ; Nard Stuyck ; Rachpon Kalra ; Sebastian Pauka ; Yue Su ; Wee Han Lim ; Santiago Serrano ; Christopher Escott ; Fay Hudson ; Kohei Itoh ; Arne Laucht ; Andrew Dzurak ; David Reilly; |
| 1288 | Characterization of Multiple Qubit Encodings in Industrially-Manufactured Silicon Quantum Dots Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present experimental realizations of both encodings in a single isotopically enriched, industrially-manufactured Si/SiGe quantum device. |
Jacob Henshaw ; Malick Gaye ; Matthew Curry ; Rohith Vudatha ; Natalie Foster ; Noah Jacobson ; Jay LeFebvre ; Lester Lampert ; Dwight Luhman ; Ryan Jock; |
| 1289 | Oral: Advances in Spin Qubit Devices: Interconnect and Magnet Optimization for Scalability Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present some of our recent work on metals, magnetic material, and dielectric material analysis used in the fabrication of our spin qubit devices. |
Larysa Tryputen ; David Michalak ; Timo J. Willigers ; Hitham Amin ; Saurabh Karwal ; Sergey Amitonov ; Amir Sammak ; Eftychia Tsapanou-Katranara ; Önder Gül ; Luca Mazzarella ; Gertjan Eenink ; Yoram Vos ; Rick N. Wasserman ; Rabah Hanfoug ; Nodar Samkharadze ; Giordano Scappucci ; Menno Veldhorst ; Lieven M. Vandersypen; |
| 1290 | Towards Operating An Error Correcting Code with Noise Biased Bosonic Qubits Part 1 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In the first part of the talk series, we introduce the architecture in use and characterize the components and gates of our circuit. |
Rishi Patel ; Shahriar Aghaeimeibodi ; Fernando Brandão ; Connor Hann ; Harry Levine ; Greg MacCabe ; Matthew Matheny ; Hesam Moradinejad ; Kyungjoo Noh ; John Owens ; Oskar Painter ; Harald Putterman; |
| 1291 | Towards Operating An Error Correcting Code with Noise Biased Bosonic Qubits Part 2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In the second part of the talk, we go over the error correction experiment and discuss the performance of our error correcting code. |
Harald Putterman ; Shahriar Aghaeimeibodi ; Fernando Brandão ; Connor Hann ; Harry Levine ; Greg MacCabe ; Matt Matheny ; Hesam Moradinejad ; Kyungjoo Noh ; John Owens ; Oskar Painter ; Rishi Patel; |
| 1292 | Low-overhead Quantum Processor Using Concatenated Bosonic-LDPC Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we study LDPC codes for biased-noise qubits and how their implementation compares to the hardware requirements of LDPC codes for standard qubits. |
Diego Ruiz ; Anthony Leverrier ; Jérémie Guillaud ; Mazyar Mirrahimi ; Christophe Vuillot; |
| 1293 | Fault-Tolerant Fusion-Based Quantum Computing with The 4-Legged Cat Code Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: With its ability to correct for single-photon loss, the 4-legged cat code stands out as a promising bosonic quantum memory, becoming the first code to surpass the QEC breakeven point [1]. We extend its capabilities with a universal set of operations composed of destructive Bell measurements and entangled resource state generation. |
Harshvardhan Babla ; James Teoh ; Jahan Claes ; Robert Schoelkopf ; Shruti Puri; |
| 1294 | Multilevel Control and Readout of Transmon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Typical Transmon has EJ/EC ~ 50-60 to reduce charge dispersion of the two lowest levels while keeping relatively large anharmonicity so that it becomes a nice realization of qubit. In this work, we explored a regime where the Transmon has larger EJ/EC, and more of its energy levels can be used to store and process a qudit quantum states. |
Zihao Wang ; Elizabeth Champion ; Rayleigh Parker ; Machiel Blok; |
| 1295 | Control and Tomography of Bosonic Qubit Encodings in A Multi-level Transmon Device Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we propose to encode a logical qubit directly in the multi-dimensional Hilbert space of a transmon. |
Elizabeth Champion ; Zihao Wang ; Rayleigh Parker ; Machiel Blok; |
| 1296 | Strongly Driven Two-Photon Qubit-Resonator Interactions: Nonclassical States, Qubit Readout, and More Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In the context of nonlinear qubit-resonator interactions in circuit QED, we discuss a driven qubit coupled to a resonator via a two-photon interaction. |
Mohammad Ayyash ; Xicheng Xu ; Sahel Ashhab ; Matteo Mariantoni; |
| 1297 | GKP State Preparation Via A Driven, Dissipative Superconducting Circuit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To that end, we propose a novel protocol to prepare, stabilize, and manipulate GKP qubit states in a driven, dissipative superconducting circuit consisting of an LC circuit in parallel with a Josephson junction and resistor. |
Liam O’Brien ; Gil Refael ; Frederik Nathan ; Matthew Matheny ; Kyungjoo Noh ; Arne Grimsmo ; Liang Jiang; |
| 1298 | Autonomous Stabilization of Gottesman-Kitaev-Preskill States in An LC-circuit Strongly Driven Via A Josephson Junction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe gate operations, estimate experimental requirements, and find that the technological requirements for our proposal can be met using demonstrated elements in Al/Al-Ox superconductor heterostructures. |
Max Geier ; Karsten Flensberg ; Frederik Nathan; |
| 1299 | Bosonic Pauli+: Efficient Simulation of Concatenated GKP Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we introduce the Bosonic Pauli+ model (BP+), which can be simulated efficiently for a large number of modes, while accurately capturing the rich dynamics in the bosonic multi-mode Hilbert space for a realistic finite-energy GKP code stabilized with the sBs protocol, with given physical decoherence rates. |
Florian Hopfmueller ; Maxime Tremblay ; Philippe St-Jean ; Baptiste Royer ; Marc-Antoine Lemonde; |
| 1300 | Towards A Second Layer of Quantum Error Correction for Gottesman-Kitaev-Preskill States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present experimental progress on the implementation of a building block composed of a syndrome unit connected to two data units, each hosting an encoded GKP qubit. |
Dany Lachance-Quirion ; Sandoko Kosen ; Pascal Lemieux ; Matthew Hamer ; Florian Hopfmueller ; Nicholas Frattini ; Jean Olivier Simoneau ; Amélie Lacroix ; Joëlle Fréchette-Viens ; Amandeep Singh Buppal ; Marc-Antoine Lemonde ; Julien Camirand Lemyre ; Philippe St-Jean; |
| 1301 | Model-based Optimization of GKP Quantum Error Correction with Feedback-GRAPE Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In our work, we have demonstrated that it is possible to exploit a model-based deep-learning approach (so-called Feedback-GRAPE [2]) to optimize the parameters of a quantum error correction circuit for the GKP code [3]. |
Matteo Puviani ; Sangkha Borah ; Jan Olle ; Remmy Zen ; Florian Marquardt; |
| 1302 | Bosonic Quantum Error Correction with Heavy Fluxonium: Dispersive Coupling in 3D (Part 1) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Previous experiments have used fixed-frequency transmon qubits to implement the controller; however, it turns out that bit-flips in this control qubit are a dominant source of errors that can ultimately limit the performance of a bosonic code. In this work, we use a heavy fluxonium as a control qubit; unlike the transmon, this circuit exhibits a strong bit-flip protection when operated away from the sweet spot. |
Shoumik Chowdhury ; Max Hays ; Shantanu Jha ; Miuko Tanaka ; Patrick Harrington ; Michael Gingras ; Jeffrey Knecht ; Bethany Niedzielski ; Jonilyn Yoder ; Mollie Schwartz ; Kyle Serniak ; Jeffrey Grover ; William Oliver; |
| 1303 | Bosonic Quantum Error Correction with Heavy Fluxonium: Parametric Coupling in 2D (Part 2) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we build on previous work to replace a transmon with a heavy-fluxonium control qubit, which has been shown to possess bit-flip lifetimes in excess of 1 millisecond. |
Shantanu Jha ; Max Hays ; Shoumik Chowdhury ; David Pahl ; Junyoung An ; Michael Gingras ; Bethany Niedzielski ; Hannah Stickler ; Jonilyn Yoder ; Mollie Schwartz ; Baptiste Royer ; Kyle Serniak ; Jeffrey Grover ; William Oliver; |
| 1304 | Integration of Component-Based Quantum Systems Into High-Performance Computing Environments Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: While quantum computing (QC) slowly matures and major technological bottlenecks towards enterprise-grade are still to be overcome, the field has evolved up to a point where almost … |
Fabian Zwiehoff ; Nathan Woollett ; Cameron Spence; |
| 1305 | Gate Performance Statistics from Quantum Processing Units with Tens of Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present an overview of design and fabrication solutions for our scalable superconducting quantum processing units (QPUs). |
Johannes Heinsoo; |
| 1306 | Frequency Allocation Strategy in Parametric-gate-based Fixed-frequency Qubit Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we discuss a possible frequency-allocation scheme to avoid crowding in a square lattice of qubits. |
Jorge Fernández Pendás ; Amr Osman ; Christopher Warren ; Sandoko Kosen ; Marco Scigliuzzo ; Giovanna Tancredi ; Anita Fadavi Roudsari ; Jonas Bylander ; Anton Frisk Kockum; |
| 1307 | Projecting Requirements for Superconducting Qubit Systems at Utility Scale Applications Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a method, built on the measurement-based quantum computing paradigm, to estimate the resources required to execute fault-tolerant applications at a scale large enough to solve useful problems. |
Josh Mutus ; Tyler Wilson ; Simon Devitt ; Mark Hodson ; Mark Field ; Vinay Tripathi ; Arshpreet Maan ; Amy Brown ; Phattharaporn Singkanipa ; Shobhan Kulshreshtha ; Alexandru Paler ; Daniel Lidar ; Seyed Saadatmand; |
| 1308 | Addressing Infrastructure Requirements for The Coherent Control of Large Superconducting Quantum Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We consider an architecture where a repeatable tile of flux-tunable qubits, coupled through capacitive tunable couplers, is repeated to create lattices of qubits that can be controlled with minimal footprint and overhead, in a way amenable to the implementation of the surface code. |
Miguel S. Moreira ; Sarah Muschinske ; Daniela Zaidenberg ; Ilan Rosen ; Cora Barrett ; Patrick Harrington ; Rabindra Das ; Bethany Niedzielski ; Jonilyn Yoder ; Mollie Schwartz ; Kyle Serniak ; Jeffrey Grover ; William Oliver; |
| 1309 | Parity-Dependent State Transfer and Many-Qubit Entanglement Generation on A Superconducting Qubit Chain Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we operate a circuit of six fixed-frequency transmons with tunable couplers and control the couplings via simultaneous parametric drives. |
João Romeiro ; Federico Roy ; Niklas Bruckmoser ; Niklas Glaser ; Gerhard Huber ; Leon Koch ; Gleb Krylov ; Johannes Schirk ; Malay Singh ; Ivan Tsitsilin ; Max Werninghaus ; Stefan Filipp; |
| 1310 | A Minimal and Integrable Device for Routing Arbitrary Microwave Quantum States in Waveguide Quantum Electrodynamics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Recent efforts have addressed this challenge and have demonstrated controlled directional emissions of flying qubit states in the 0/1 Fock state basis [4, 5]. Here we present the design and realization of a device that extends this functionality to arbitrary quantum states, such as error-correctable bosonic states. |
Xi Cao ; Abdullah Irfan ; Michael Mollenhauer ; Supriya Mandal ; Wolfgang Pfaff; |
| 1311 | Enhancing Connectivity in Superconducting Qubit Systems with An On-Chip Quantum Router Design Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose an innovative on-chip quantum router design that facilitates long-range all-to-all connectivity and boasts a high on-off ratio. |
Xuntao Wu ; Haoxiong Yan ; Gustav Andersson ; Ming-Han Chou ; Christopher Conner ; Joel Grebel ; Yash Joshi ; Jacob Miller ; Rhys Povey ; Hong Qiao ; Andrew Cleland; |
| 1312 | High Fidelity Quantum Gates and Qubit Measurements in An All-to-all Connected, SNAIL-based Quantum Module Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present results on improvements made toward achieving 0.99 gate fidelities among all pairs of qubits as well as 0.99 readout fidelity. |
Jacob Repicky ; Mingkang Xia ; Chao Zhou ; Evan McKinney ; Boris Mesits ; Alex Jones ; Michael Hatridge; |
| 1313 | Coherent Control of A Superconducting Qubit Using Light Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we demonstrate coherent optical control of a superconducting qubit. |
Hana Warner ; Jeffrey Holzgrafe ; Beatriz Yankelevich ; David Barton ; Stefano Poletto ; CJ Xin ; Neil Sinclair ; Di Zhu ; Eyob Sete ; Brandon Langley ; Emma Batson ; Marco Colangelo ; Amirhassan Shams-Ansari ; Graham Joe ; Karl Berggren ; Liang Jiang ; Matthew Reagor ; Marko Loncar; |
| 1314 | Optimal Control of A Superconducting Qutrit Via A Low-noise Broadband Optical Link Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will describe how we integrated a photonic digital to analog converter (PDAC) with a microwave control system targeting a superconducting qutrit. |
Kristin Beck ; Jacky Chan ; Brian Worthmann ; Luke Duddles ; Joshua Olson ; Kevin Chaves ; Peter DeVore ; Jonathan DuBois ; Jason Chou ; Apurva Gowda; |
| 1315 | Mm-Wave Superconducting Mode Converter for Kinetic Inductance Parametric Amplifier Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present field simulations as well as the experimental results of testing the superconducting mode converter at low temperature. |
Sara Kandil ; Debadri Das ; Adham Naji ; Jazmin Drop ; Valery Borzenets ; Emilio Nanni; |
| 1316 | Spin-Photon Entanglement of A Single Rare-Earth-Ion at The Telecom Band Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we utilize the improved spin and optical coherence and employ a dynamical decoupling-based entanglement scheme to demonstrate spin-photon entanglement. |
Haitong Xu ; Mehmet Tuna Uysal ; Lukasz Dusanowski ; Sebastian Horvath ; Salim Ourari ; Adam Turflinger ; Robert Cava ; Nathalie de Leon ; Jeff Thompson; |
| 1317 | Development and Defects Control in The Qubit Hosts for Quantum Information Processing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Both CaWO 4 and YVO 4 have oxygen-related paramagnetic defects. We present our results in the development and characterization of these and related host materials. |
Satya Kushwaha ; Brandon Wilfong ; Shannon Bernier ; Abby Neill ; Mekhola Sinha ; Morgan Dierolf ; Aviana Judd ; Gannon Murray ; Tyrel McQueen; |
| 1318 | Coherent Erbium Spin Defects in Colloidal Ceria Nanocrystals Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we explore erbium (Er) doped ceria NC with an ensemble average level of a single erbium per NC and experimentally demonstrate spin coherence times approaching a microsecond. |
Joeson Wong ; Arashdeep Thind ; Jasleen Bindra ; Jiefei Zhang ; Gregory Grant ; Christina Wicker ; Yuxuan Zhang ; Jens Niklas ; Oleg Poluektov ; Supratik Guha ; Robert Klie ; Joseph Heremans ; David Awschalom ; Paul Alivisatos; |
| 1319 | Electronic Structure and Crystalline Electric Field Splitting of Trivalent Erbium in MgO Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present an effective ab initio method of calculating crystal field coefficients of erbium, a rare earth, ion hosted in magnesium oxide (MgO) with O h point group symmetry. |
Yogendra Limbu ; Joseph Sink ; Tharnier Puel ; Durga Paudyal ; Michael Flatté; |
| 1320 | Spin-dependent Optical Properties of Ce-implanted MgAl2O4 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Based on the guidelines for developing a new optically accessible qubit system [2,5], and theoretical predictions of qubit host materials with long T 2 [6,7] we explore alternative qubit platforms. |
Manato Kawahara ; Yuichiro Abe ; Koki Takano ; F. Joseph Heremans ; Jun Ishihara ; Sean Sullivan ; Christian Vorwerk ; Vrindaa Somjit ; Christopher Anderson ; Gary Wolfowicz ; Makoto Kohda ; Shunsuke Fukami ; Giulia Galli ; David Awschalom ; Hideo Ohno ; Shun Kanai; |
| 1321 | New Color Centers in Diamond for Quantum Applications Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: From absorption, photoluminescence, and transient absorption spectroscopy, we identify a zero-phonon line at 1221 nm with phonon replicas separated by 42 meV and an excited state lifetime of ~270 ps. |
Sounak Mukherjee ; Zi-Huai Zhang ; Sean Karg ; Arunava Das ; Daniel Oblinsky ; Sebastian Horvath ; Mayer Feldman ; Mitchell de Vries ; Brett Johnson ; Brant Gibson ; Edwin H Mayes ; Andrew Edmonds ; Nicola Palmer ; Matthew Markham ; Ádám Gali ; Gergő Thiering ; Adam Dalis ; Timothy Dumm ; Gregory Scholes ; Alastair Stacey ; Philipp Reineck ; Jeff Thompson ; Stephen Lyon ; Nathalie de Leon; |
| 1322 | Understanding The Dopant-driven Impact on Electronic and Crystal Structure of Erbium-doped Oxides for Quantum Memory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we employed synchrotron-based X-ray tools, including X-ray absorption spectroscopy and diffraction, to investigate Er-doped titanium oxides electronic and crystal structures as doping levels vary. |
Jessica Barbosa Martins ; Gregory Grant ; Ignas Masiulionis ; Kathryn Sautter ; Rishi Chebrolu ; Supratik Guha ; John Freeland; |
| 1323 | Material and Optical Differences Between Three Different Growth Methods for Er:TiO2/Si(100) Films Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: 1 Here, we report on the exploration of differences between three modes of growth for Er:TiO 2 films on Si(100): traditional molecular beam epitaxy (MBE) using a solid titanium source, metal-organic MBE (MOMBE) using a titanium precursor, 1,2 and atomic layer deposition (ALD). |
Ignas Masiulionis ; Cheng Ji ; Gregory Grant ; Rishi Chebrolu ; Jiefei Zhang ; Alan Dibos ; Sumit Kewalramani ; F. Joseph Heremans ; Supratik Guha; |
| 1324 | Spin Qubit with Coherence Exceeding One Second Measured By Microwave Photon Counting. Part 1/3 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: A previous version of this design, which enabled single electron spin detection for the first time, has reached a sensitivity of 10−22W/√Hz [2]. We present here an improved version of this design, reaching a sensitivity of 10−23W/√Hz. |
Louis Pallegoix ; Emmanuel Flurin ; Jaime Travesedo ; James O’Sullivan ; Patrice Bertet; |
| 1325 | Spin Qubit with Coherence Exceeding One Second Measured By Microwave Photon Counting. Part 2/3 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The method applies to arbitrary paramagnetic species with long enough non-radiative relaxation time, and offers large detection volumes ( ∼ 10μm3) ; as such, it may find applications in magnetic resonance and quantum computing. In this second part, I will present the spectroscopy of individual Erbium ions by microwave photon counting with an improved detector sensitivity. |
Emmanuel Flurin ; Louis Pallegoix ; Jaime Travesedo ; Patrice Bertet ; James O’Sullivan; |
| 1326 | Spin Qubit with Coherence Exceeding One Second Measured By Microwave Photon Counting. Part 3/3 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The method applies to arbitrary paramagnetic species with long enough non-radiative relaxation time, and offers large detection volumes ( ∼ 10μm3) ; as such, it may find applications in magnetic resonance and quantum computing. |
Jaime Travesedo ; Louis Pallegoix ; James O’Sullivan ; Patrice Bertet ; Emmanuel Flurin; |
| 1327 | Engineering The Kitaev Spin Liquid in A Quantum Dot System Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The Kitaev model on a honeycomb lattice may provide a robust topological quantum memory platform, but finding a material that realizes the unique spin liquid phase remains a considerable challenge. |
Tessa Cookmeyer; |
| 1328 | Quantum Approximate Spectral Decomposition Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This raises the question of whether the spectral decomposition remains a useful tool for the analysis of many-body dynamics. I will introduce a generalization of the spectral decomposition which allows for the approximate reconstruction of the dynamics of both observables and entanglement up to polynomial times, and present an algorithm allowing for its efficient extraction on quantum computers. |
Samuel Garratt; |
| 1329 | Linking Pump-Probe Experiments and Quantum Simulations: A Linear Response Framework Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Another powerful, prospective application of this method entails directly simulating a pump-probe experiment where the system is driven out of equilibrium by an ultrafast laser pulse and probed afterwards to measure its non-equilibrium Green’s functions. Using this, and putting the functional derivative approach into action, we investigate the phenomenon of confinement within condensed-matter physics, which involves the emergence of a startling attractive potential between the quasi-particles of a spin-system that alters the dynamics and the spreading of correlations. |
Heba Labib ; Efekan Kokcu ; Alexander Kemper ; James Freericks; |
| 1330 | Bosonic Quantum Simulation with A Superconducting Transmon Lattice Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will discuss the feasibility of performing multi-level analog quantum simulation of the Bose-Hubbard model using superconducting transmon qudits. |
Sarah Muschinske ; Miguel Moreira ; Kasper Poulsen ; Ilan Rosen ; Cora Barrett ; Patrick Harrington ; Rabindra Das ; David Kim ; Bethany Niedzielski ; Jonilyn Yoder ; Mollie Schwartz ; Kyle Serniak ; Jeffrey Grover ; William Oliver; |
| 1331 | Utilizing Transmon Qudits for Quantum Simulation of The Fermi-Hubbard Model Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we introduce a novel approach to simulating the Fermi-Hubbard model utilizing transmon qudits. |
Arian Vezvaee ; Khadijeh Najafi ; Nate Earnest-Noble; |
| 1332 | Quantum Algorithm for Solving The XXX-Heisenberg Model Describing Spin Dynamics in A Trinuclear Copper Complex Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate spin dynamics in a Cu 3(saltatris(2-hydroxybenzylidene)triaminoguanidine)(pyridine) 6 complex, focusing on the three spin-1/2 Cu(II) ions. |
Daria Nakritskaia ; Sergey Varganov ; Yuri Alexeev; |
| 1333 | Photon-photon Interactions in Quasi-1D Lattices of Coplanar Waveguides Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present data from a quasi-1D coplanar waveguide lattice device with unconventional linear and flat bands, and 3 flux tunable qubits. |
Kellen O’Brien ; Maya Amouzegar ; Martin Ritter ; Won Chan Lee ; Alicia Kollar; |
| 1334 | Dynamics of Magnetization at Infinite Temperature in A Heisenberg Spin Chain Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In a chain of 46 superconducting qubits, we study the probability distribution, P(M), of the magnetization transferred across the chain’s center. |
Eliott Rosenberg ; Rhine Samajdar ; Vedika Khemani ; Sarang Gopalakrishnan ; Tomaz Prosen; |
| 1335 | Quantum Circuits for Toric Code and X-cube Fracton Model Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a systematic and efficient quantum circuit composed solely of Clifford gates for simulating the ground state of the surface code model. |
Penghua Chen ; bowen yan ; Shawn Cui; |
| 1336 | Isolated Majorana Mode in A Quantum Computer from A Duality Twist Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Investigating the interplay of dualities, generalized symmetries, and topological defects beyond theoretical models is an important challenge in condensed matter physics and quantum materials. A simple model exhibiting this physics is the transverse-field Ising model, which can host a noninvert- ible topological defect that performs the Kramers-Wannier duality transformation. |
Sutapa Samanta ; Derek Wang ; Armin Rahmani ; Aditi Mitra; |
| 1337 | Digital Simulations of Equilibrium Symmetry-protected Topological Phases Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In our study, we demonstrate the equilibrium symmetry-protected topological (SPT) phase transitions through digital simulations executed on a quantum computer. |
Ruizhe Shen ; Tianqi Chen ; Yin Zhong ; Ching Hua Lee; |
| 1338 | Gauged Cooling of Topological Excitations and Emergent Fermions on Quantum Simulators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, such protocols are inefficient when applied to systems whose excitations are highly non-local in terms of the microscopic degrees of freedom, such as topological phases of matter; such excitations are difficult to extract by a local coupling to a bath. We explore a route to overcome this obstacle by encoding of the system’s degrees of freedom into those of the quantum simulator in a non-local manner. |
Erez Berg ; Mark Rudner ; Gilad Kishony ; Achim Rosch; |
| 1339 | The Fast Multipole Method on A Quantum Computer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will show how FMM can nevertheless be adapted to a quantum computer using O(n) gates, by exploiting the underlying structure of the algorithm. |
Kianna Wan ; Dominic Berry ; Ryan Babbush; |
| 1340 | Junyu Liu Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Title: A grant unification theory of variational quantum algorithms Abstract: We point out that the so-called quantum neural tangent kernel, the trace of Hessian matrix of the mean-square loss function, plays a significant role in the dynamics of variational quantum circuits in quantum machine learning algorithms. |
Junyu Liu; |
| 1341 | Dynamical Phase Transition in Quantum Neural Networks with Large Depth Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we identify a dynamical phase transition in the training dynamics of quantum neural networks with large depth. |
Bingzhi Zhang ; Junyu Liu ; Liang Jiang ; Quntao Zhuang; |
| 1342 | Expressive Quantum Circuits Provide Inherent Privacy in Federated Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we introduce federated learning with variational quantum circuit model built using expressive encoding maps coupled with overparameterized ansatze. |
Niraj Kumar ; Jamie Heredge ; Changhao Li ; Shree Hari Sureshbabu ; Shaltiel Eloul ; Marco Pistoia; |
| 1343 | Automatic Generation of Quantum Neural Networks with Reinforcement Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we discuss the automatic generation of QNNs with a model-based reinforcement learning approach. |
Frederic Rapp ; Marco Roth; |
| 1344 | Approximately Symmetric Neural Quantum States for Quantum Spin Liquids Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, for arbitrary Hamiltonians in a given spin liquid phase, the exact form of the symmetry operators is often not known. In order to exploit these symmetries, we propose an approximately group-invariant neural network as a variational ansatz for the ground state wavefunction. |
Jack Kemp ; Dominik Kufel ; Norman Yao; |
| 1345 | Deep Learning Using Quantum Stochastic Switches Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: A learning machine, by contrast with a machine learning algorithm, is an analogue physical system that learns. |
Matthew Woolley ; Ethan Sigler ; Gerard Milburn; |
| 1346 | Approximate Compilation of Variational Quantum Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Nevertheless, current quantum compilers do not effectively leverage the approximate nature of VQA circuits and thus overlook opportunities to optimize executables for quantum computing hardware. In light of this, we present Bifrost, the first quantum compiler that is designed specifically for VQAs and leverages their resilience to deformation via approximate compilation. |
Runzhou Tao ; Yunong Shi ; Sashwat Anagolum ; Ronghui Gu ; Vivek Yanamadula; |
| 1347 | Quantum Computational Imaging and Sensing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, transduction also presents possible avenues for performing measurements that are challenging to do on some physical system, by first transducing the quantum information into a different physical system which can more easily execute the measurement. In this work, we explore this concept for measuring light by first transducing optical states into qubits of a quantum computer that then coherently processes the quantum information, a paradigm we call “quantum computational imaging and sensing” (QCIS). |
Spencer Dimitroff ; Johnny Crossman ; Ashe Miller ; John Kallaugher ; Mohan Sarovar; |
| 1348 | Spin Amplification in Realistic Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that spin amplification is possible to implement in noisy and disordered spin ensembles, such as flux qubits, using only a global time-dependent drive field. |
Ivan Iakoupov ; Victor Bastidas ; Yuichiro Matsuzaki ; Shiro Saito ; William Munro; |
| 1349 | Theory of Quantum-enhanced Spectroscopy with General Markovian Light Sources Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we develop a general frame-work to analyze quantum enhanced spectroscopy with generalized Markovian light sources. |
Erfan Abbasgholinejad ; Ana Asenjo Garcia ; Rahul Trivedi; |
| 1350 | Quantum Sensing of Low-frequency Fields Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we explore and demonstrate a fitting-based algorithm to measure low-frequency fields with an over two orders of magnitude higher sensitivity, which is frequency independent in the low-frequency range [4]. |
Ernst Herbschleb ; Izuru Ohki ; Kohki Morita ; Yoshiharu Yoshii ; Hiromitsu Kato ; Toshiharu Makino ; Satoshi Yamasaki ; Norikazu Mizuochi; |
| 1351 | Condition for Quantum-limited Superresolution of Two Incoherent Optical Sources with Unknown Photon Numbers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we analyze the precision of resolving two identical general incoherent optical sources in detail for the case with unknown photon numbers, and obtain the condition to realize the superresolution in that case. |
Junyan Li; |
| 1352 | Probing Electromagnetic Nonreciprocity with The Quantum Geometry of Photonic States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Such devices offer enormous potential for developing advanced technologies for sensing and characterization by incorporating quantum and nonlinear effects into the dynamics of photonic modes. Here, we propose such an integrated device – a superconducting cross resonator integrated with a quantum material that intrinsically breaks time-reversal symmetry. |
Ioannis Petrides ; Jonathan Curtis ; Marie Wesson ; Amir Yacoby ; Prineha Narang; |
| 1353 | Cryogenic Transimpedance Amplifier for Condensed Matter Physics Experiments Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we present the Bode plot and noise analysis of common-source VAs and TIAs using commercial GaAs pHEMTs at 300 K, 77 K and 4 K. |
Oskari Ponkala ; Heorhii Bohuslavskyi; |
| 1354 | Super-resolution Imaging Without Prior Knowledge Using Spatial Modes Sorting Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this paper, we will describe the experiment and present our experimental results. |
Itay Ozer ; Michael Grace ; Saikat Guha; |
| 1355 | Experimental Progress Towards A Cryogenic Phase-conjugate Receiver for Microwave Quantum Illumination Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We analyze and benchmark the residual correlations that are required to see the expected error probability enhancement and investigate the noise power handling of the PC receiver which approaches room temperature values after suitable filtering. |
Riya Sett ; Alejandro Juanes ; Joan Agusti ; Shabir Barzanjeh ; Peter Rabl ; Johannes Fink; |
| 1356 | Towards A Primary Temperature Sensor Based on Magnon-phonon Quantum Correlation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we report on progress towards a primary thermometer based on the spectral noise correlation between the magnetic excitations of a ferromagnet and its vibrational energy [1, 2]. |
Jeongwan Jin ; Yunhu Huang ; Patrick Rourke ; Andrea Peruzzi ; John Davis; |
| 1357 | Entanglement-enhanced Dual-comb Spectroscopy Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To address the issue, we propose an entanglement-enhanced dual-comb spectroscopy protocol that leverages quantum resources to significantly improve the signal-to-noise ratio performance. |
Haowei Shi ; Zaijun Chen ; Scott Fraser ; Mengjie Yu ; Zheshen Zhang ; Quntao Zhuang; |
| 1358 | Single Parameter Phase Estimation for A Sequence of Measurements Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we investigate estimation of phase uncertainty in a noiseless Mach–Zehnder interferometer using multi-photon entangled input states and photon-counting detection. |
Shreyas Sadugol; |
| 1359 | Quantum Illumination Network for Multi-parameter Estimation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we propose a quantum illumination network with a transmitter array and a single receiver antenna that offers a huge scaling advantage in multi-parameter estimation. |
Xiaobin Zhao ; Quntao Zhuang; |
| 1360 | Off-resonant Imaging of Magnon Propagation Using NV Quantum Sensors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present a protocol that allows for off-resonant sensing of magnons with NVs based on the AC-stark effect. |
Johannes Cremer ; Daniel Fernandez ; Shantam Ravan ; Ziwei Qiu ; Ilya Esterlis ; Eugene Demler ; Ronald Walsworth ; Amir Yacoby; |
| 1361 | Leveraging Novel Materials for Quantum Sensing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will describe an experimental framework that leverages quantum phenomena to inform and explore the unique role that material physics can play in developing more sensitive and efficient quantum devices. |
Kin Chung Fong ; Gil-Ho Lee ; Dirk Englund ; James Hone ; Bevin Huang ; Ethan Arnault ; Woochan Jung ; Mary Kreidel ; Jesse Balgley ; Xuanjing Chu ; Ted Chung ; Dmitri Efetov ; giorgio di battista ; Erik Henriksen ; Jordan Russell; |
| 1362 | Progress and Perspectives on The Control of Single Electrons on Helium Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we discuss EeroQ Quantum Hardware’s approach towards addressing design and control challenges for single eHe devices. |
Elena Glen ; Gerwin Koolstra ; Niyaz Beysengulov ; Heejun Byeon ; Kyle Castoria ; Michael Sammon ; Jenna Theis ; Stephen Lyon ; Johannes Pollanen ; David Rees; |
| 1363 | Toward CQED with Microchannel Confined Electrons on Helium Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present hybrid system architectures, integrating microwave frequency devices with eHe microchannel control devices. |
Camille Mikolas ; Niyaz Beysengulov ; Austin Schleusner ; Camryn Undershute ; David Rees ; Johannes Pollanen; |
| 1364 | Electron Mobility Measurements on Thin Helium Film Across Mm Long Transport Line Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we demonstrate a device which allows for mobility measurements as electrons move across a continuous 5.6 um wide, 4 mm long wire coated with a 34 nm vdW helium film. |
Tiffany Liu ; Kyle Castoria ; Mayer Feldman ; Stephen Lyon; |
| 1365 | Optimizing The Electron-ripplon Coupling for Quantum Computing with Electrons on Helium Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we consider the decay and dephasing rates of spin qubits. |
Michael Sammon ; Gerwin Koolstra ; Mark Dykman ; Niyaz Beysengulov; |
| 1366 | High-frequency Dynamics of The Liquid and Solid Phases of Electrons on Helium Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The measurements are carried out over a wide range of frequency from 0.1-170 MHz via capacitively coupled lock-in techniques. At frequencies above ~10MHz a significant parasitic background contribution to the signal is present and we describe a compensation circuit used to cancel this signal enabling us to observe the high-frequency resonant emission of ripplons by the electron system. |
Austin Schleusner ; Niyaz Beysengulov ; Camille Mikolas ; David Rees ; Johannes Pollanen; |
| 1367 | Control of Small Ensemble Electron Packets on Helium Using A CMOS-Based CCD Architecture Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In fact, CMOS charge-coupled devices have been used to successfully demonstrated exceptional clocking efficiency of electrons [1]. Here we report on efforts aimed at advancing this technology by describing devices designed to trap and control more than 10^4 electrons on a 5×5 mm^2 chip fabricated using a standard CMOS process. |
Kyle Castoria ; Stephen Lyon ; Johannes Pollanen ; Elena Glen ; David Rees ; Niyaz Beysengulov ; Gerwin Koolstra ; Michael Sammon ; Heejun Byeon ; Jenna Theis; |
| 1368 | Confining Single Electrons on Helium in Lithographically Defined Quantum Dots Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: The decoherence-free nature of the spin of an electron floating on liquid helium makes it an attractive candidate for quantum information processing. However, the precursor to … |
Mayer Feldman ; Kyle Castoria ; Stephen Lyon; |
| 1369 | High Quality Two Layer LC Resonator at Liquid Helium Temperature Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Analogous to a plunger gate in silicon qubits, we need a conductive layer underneath the inductor to trap electrons near it without damaging the quality factor. We explore such a structure using a two-layer lumped element LC resonator which has a measured quality factor of 1700 at 4.2K. |
Weiheng Fu ; Stephen Lyon; |
| 1370 | RF Reflectometry of The Rydberg State of Electrons on Helium: Towards A Helium-Based Quantum Computer Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose to use a hybrid qubit by coupling the spin state of the SE to the hydrogen-like Rydberg state [1]. |
Erika Kawakami ; Asher Jennings ; Ivan Grytsenko ; Yiran Tian ; Oleksiy Rybalko; |
| 1371 | Progress Towards Coupling Two Electron-on-solid-neon Qubits in The Strong-dispersive Regime Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we report enhanced charge-photon coupling strength into 10-30 MHz range, with a high-impedance superconducting resonator made of 30 nm thick high-kinetic-inductance titanium nitride (TiN) films on intrinsic silicon substrates. |
Xinhao Li ; Xianjing Zhou ; Yizhong Huang ; Christopher Wang ; Brennan Dizdar ; Xu Han ; David Schuster ; Dafei Jin; |
| 1372 | Hybrid Circuit QED Platform Between A Transmon and An Electron-on-solid-neon Charge Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The motional states of a single electron floating on a thin film of solid neon at cryogenic temperatures can reach coherence times several orders of magnitude longer than traditional charge qubits in semiconductor devices due to a longer physical distance between the electron and material defects within the substrate. In this talk we describe the preliminary characterization of a hybrid device that is capable of coupling such an electron charge qubit to a superconducting transmon qubit through virtual photons in a shared resonator bus. |
Kaiwen Zheng ; Xingrui Song ; Xinyi Zhao ; Kater Murch; |
| 1373 | Sculpting Long-Range Entanglement with Adaptive Circuits: From Theory to Realizing Non-Abelian Anyons and Nishimori Transitions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Remarkably, the wave-function collapse induced by quantum measurements can bypass no-go theorems, thereby efficiently preparing such states. In this talk, we will explore recent advances in this direction, which can now be implemented in programmable quantum devices. |
Ruben Verresen; |
| 1374 | Probing Post-measurement States Without Post-selection Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: I will discuss the problem of observing quantum collective phenomena which arise from large numbers of measurements. |
Samuel Garratt; |
| 1375 | Mixed-state Long-range Entanglement from Adaptive Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: As an illustration, I will show how symmetry-protected topological order can be universally converted into mixed state long-range order, which can undergo a mixed state phase transition with logarithmic scaling of entanglement negativity, a measure of quantum correlations in mixed states. |
Timothy Hsieh ; Tsung-Cheng Lu ; Zhehao Zhang ; Sagar Vijay; |
| 1376 | Efficient Long-Range Entanglement Using Dynamic Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In principle, these limitations can be superseded by non-unitary, dynamic circuits. These circuits exploit measurements alongside conditional feed-forward operations, providing a promising approach for long-range entangling gates, higher effective connectivity of near-term hardware, and more efficient state preparations. |
Elisa Bäumer ; Vinay Tripathi ; Derek Wang ; Patrick Rall ; Edward Chen ; Swarnadeep Majumder ; Alireza Seif ; Zlatko Minev; |
| 1377 | Dissipation and Long-Range-Entanglement in Mixed Quantum Matter Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we show how decoherence and unitary evolution can produce long-range-entangled mixed-states of quantum many-body systems which are distinguished by their ability to act as a resource for coherently transmitting classical or quantum information. |
Sagar Vijay; |
| 1378 | A Noise Protected Superconducting Fluxonium Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we use the single-loop fluxonium circuit in a new regime. |
Waël Ardati ; Sebastien Leger ; Shelender Kumar ; Vishnu Suresh ; Dorian Nicolas ; Cyril Mori ; Francesca D’Esposito ; Guilliam Butseraen ; Bekim Fazliji ; Alexis Coissard ; Olivier Buisson ; Quentin Ficheux ; Nicolas Roch; |
| 1379 | Crossing Over from Electromagnetic Induced Transparency (EIT) to Autler-Townes Splitting (ATS) in A Single Superconducting Fluxonium Artificial Atom Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Because of large anharmonicity and tunability of the Fluxonium qubit, we designed a Lambda-type system with the controlling and probing transitions are strongly coupled to the transmission line while the transition between |0> and |1> states are protected while the fluxonium qubit close to the sweet spot. |
Ching-Yeh Chen ; Shih-Wei Lin ; Yu-Chi Chang ; Chen-Yun Chang ; Ching-Ping Lee ; Chien-Chun Ting ; Yen-Hsiang Lin; |
| 1380 | Novel Charging Effects in The Fluxonium Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we derive a convenient form of the fluxonium Hamiltonian that makes it easier to characterize the effects of a time-dependent offset-charge bias. |
Agustin Di Paolo ; Kyle Serniak ; Andrew Kerman ; William Oliver; |
| 1381 | Investigating The Loss Mechanisms of Driven Fluxonium Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: The fluxonium qubit has garnered significant interest recently due to its high gate fidelities and strongly anharmonic spectrum. These valuable features have resulted in the … |
Angela Kou; |
| 1382 | Optimal Fluxonium Parameters for Capacitive Cross-resonance Gate Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We aim to obtain the fastest gate speed given a low target residual ZZ rate. |
Eugene Huang ; Figen Yilmaz ; Siddharth Singh ; Martijn Zwanenburg ; Taryn Stefanski ; Christian Andersen; |
| 1383 | Compact 2D Fluxonium Qubits Design with Inductive Coupling for Measurement and Control Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we propose a 2D fluxonium architecture with inductive coupling to achieve measurement and control. |
Chuanhong Liu ; Zahra Pedramrazi ; Noah Stevenson ; Noah Goss ; Long Nguyen ; Bingcheng Qing ; Larry Chen ; Kan-Heng Lee ; Bibek Bhandari ; Abhishek Chakraborty ; Justin Dressel ; Andrew Jordan ; David Santiago ; Irfan Siddiqi; |
| 1384 | Dephasing in Fluxonium Qubits from Coherent Quantum Phase Slips Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By varying the impedance of the array junctions, we specifically engineer a set of fluxonium qubits to be sensitive to CQPS-induced dephasing over three orders of magnitude. We characterize the coherence times of these qubits in regimes dominated by CQPS or flux noise and show agreement with theoretical models. |
Mallika Randeria ; Thomas Hazard ; Agustin Di Paolo ; Kate Azar ; Max Hays ; Leon Ding ; Junyoung An ; Hannah Stickler ; Michael Gingras ; Bethany Niedzielski ; Jeffrey Grover ; Jonilyn Yoder ; Mollie Schwartz ; William Oliver ; Kyle Serniak; |
| 1385 | Overcoming The Rotating-Wave Approximation in Fluxonium with Circularly Polarized Driving (Part 1) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we circumvent the aforementioned limitation by simultaneously performing linear charge and flux drives on a fluxonium superconducting qubit to create the circuit-quantum-electrodynamics analogue of circularly-polarized light. |
Leon Ding ; David Rower ; Max Hays ; Ilan Rosen ; Bethany Niedzielski ; Mollie Schwartz ; Jonilyn Yoder ; Kyle Serniak ; Jeffrey Grover ; William Oliver; |
| 1386 | Overcoming The Rotating-Wave Approximation in Fluxonium with Circularly Polarized Driving (Part 2) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we circumvent the aforementioned limitation by simultaneously performing linear charge and flux drives on a fluxonium superconducting qubit to create the circuit-quantum-electrodynamics analogue of circularly-polarized light. |
David Rower ; Leon Ding ; Max Hays ; Ilan Rosen ; Bethany Niedzielski ; Mollie Schwartz ; Jonilyn Yoder ; Kyle Serniak ; Jeffrey Grover ; William Oliver; |
| 1387 | Strong Coupling Between A 2D Fluxonium and Tantalum Resonators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present our preliminary data on fabricating a 2D fluxonium and achieving strong coupling to a tantalum resonator. |
Haonan Xiong ; Jiahui Wang ; Jize Yang ; Zenghui Bao ; Yan Li ; Luyan Sun ; Hongyi Zhang ; Yipu Song ; Luming Duan; |
| 1388 | Engineering Spectral Properties of Fluxonium Through Josephson Plasma Frequency Optimization Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we emphasize the ability to precisely design and fabricate desired fluxonium properties by optimization of the Josephson plasma frequency; which is tunable within the range of 10-100 GHz. |
Taketo Imaizumi ; Raymond Mencia ; Igor Golovchanskiy ; Vladimir Pesic ; Hao Chen Yeh ; Taha Bouwakdh ; Vladimir Manucharyan; |
| 1389 | Quantum Tunneling and Level Crossings in The Squeeze-driven Kerr Oscillator Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation, we provide a detailed analysis of the spectrum and the dynamics of the effective model up to high energies, which should soon be within experimental reach. |
Miguel Prado ; Jorge Chavez ; Lea F. Santos ; Daniel Nader ; Rodrigo Cortinas ; Victor Batista ; Belter Ordaz ; Sergio Lerma-Hernández ; Francisco Pérez-Bernal; |
| 1390 | Quantum Chaos and Quantum Phase Transitions in Kerr Parametric Oscillators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that on the same Kerr parametric oscillator implemented with driven SNAIL transmon superconducting circuits, one can either simulate excited state quantum phase transitions (ESQPTs) or study quantum chaos. |
Lea Santos ; Jorge Chavez ; Miguel Prado ; Rodrigo Cortinas ; Victor Batista ; Ignacio García-Mata ; Diego Wisniacki ; Francisco Pérez-Bernal; |
| 1391 | Driving Superconducting Qubits Into Chaos Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation, we show that when the nonlinearities and the drive are strong, the qubit melts away due to the onset of chaos. |
Jorge Chavez ; Rodrigo Cortinas ; Miguel Prado ; Ignacio Garcia Mata ; Victor Batista ; Francisco Pérez-Bernal ; Diego Wisniacki ; Lea Santos; |
| 1392 | Pulsed Dynamics and Itinerant Cat State Generation in A Kerr Parametric Oscillator Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present a planar KPO design consisting of a large island shunted to the ground by a single SQUID, with an internal quality factor exceeding 10 5. |
Arjan Van Loo ; C. W. Sandbo Chang ; Marek Pechal ; Yasunobu Nakamura; |
| 1393 | Generation of An Entangled Cat State from A Bell State in Two Interacting Kerr Parametric Oscillators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present our recent experimental progress on a relatively simple method on generation of an entangled cat state from a Bell state in planar KPOs. |
Daisuke Hoshi ; Toshiaki Nagase ; Sangil Kwon ; Shohei Watabe ; Fumiki Yoshihara ; Jaw-Shen Tsai; |
| 1394 | Experimental Gate Operation of Entangled Cat States in Two Kerr Parametric Oscillators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present our experimental efforts towards two-qubit gate operations for cat states in two-dimensional superconducting KPOs. |
Toshiaki Nagase ; Daisuke Hoshi ; Sangil Kwon ; Shohei Watabe ; Fumiki Yoshihara ; Jaw-Shen Tsai; |
| 1395 | Quantum Supervised Machine Learning with Kerr-nonlinear Oscillators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a strategy for obtaining the expressivity in quantum machine learning without the data reuploading, which repeatedly encode into the quantum state. |
Yuichiro Mori ; Kouhei Nakaji ; Yuichiro Matsuzaki ; Shiro Kawabata; |
| 1396 | Quantum State Tomography for Kerr Parametric Oscillators with Reflection Measurement Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present that the reflection coefficient has a one-to-one correspondence with a diagonal element of the density matrix of the qubit when a probe frequency is properly chosen, and an additional single-photon-drive is utilized. |
Shumpei Masuda ; Yuta Suzuki ; Tsuyoshi Yamamoto ; Shiro Kawabata; |
| 1397 | Efficient and Versatile Tomography of Bosonic Quantum States (Part I) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present a Quantum Reservoir Processing (QRP) approach that uses ergodic dynamics on the bosonic systems with operations as simple as displacements. |
Tanjung Krisnanda ; Adrian Copetudo Espinosa ; Clara Fontaine ; Pengtao Song ; Kaixiang Lee ; Fernando Valadares ; Nini Huang ; Timothy C. H. Liew ; Tomasz Paterek ; Yvonne Gao; |
| 1398 | Efficient and Versatile Tomography of Bosonic Quantum States (Part II) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present the experimental data where we show that, for the same number of measurements, QRP reconstructs states with higher fidelity than Wigner tomography. |
Adrian Copetudo Espinosa ; Tanjung Krisnanda ; Clara Fontaine ; Pengtao Song ; Kai Xiang Lee ; Fernando Valadares ; Ni-Ni Huang ; Timothy C. H. Liew ; Yvonne Gao; |
| 1399 | Universal Control of A Bosonic Mode Via Drive-activated Native Cubic Interactions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Superconducting microwave circuits offer such strong nonlinearities but face other challenges, like parasitic state distortion due to the Kerr effect and shorter coherence times. In this talk, we will demonstrate how these difficulties can be overcome. |
Théo Sépulcre ; Axel Eriksson ; Mikael Kervinen ; Timo Hillmann ; Marina Kudra ; Simon Dupouy ; Yong Lu ; Maryam Khanahmadi ; Jiaying Yang ; Claudia Castillo-Moreno ; Per Delsing ; Simone Gasparinetti; |
| 1400 | On-chip Microwave Source of Coherent States with In-situ Control of The Photon Numebr Distribution Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose and theoretically investigate a new design that allows on-chip generation of microwave coherent states with on-demand control on the photon number distribution. |
Pasquale Mastrovito ; Martina Esposito ; Davide Massarotti ; Francesco Tafuri; |
| 1401 | Ancilla-fault Tolerant Control of Linear Quantum Memories with Dynamic Dispersive Coupling Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: There has been much progress towards controlling these memories by dispersively coupling them to ancillary superconducting qubits, but this introduces non-linearity and dephasing to the memories, and control fidelity is often limited by the ancilla qubit’s decoherence. We introduce a novel architecture that breaks this trade-off, by inserting a quasi-linear coupler between the memories and the qubit. |
Aniket Maiti ; John Garmon ; Yao Lu ; Yanhao Wang ; Patrick Winkel ; Suhas Ganjam ; Luigi Frunzio ; Robert Schoelkopf; |
| 1402 | Nonlinearity-engineered Threaded SQUID: A Novel Nonlinear Device for Bosonic Quantum Error Correction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The device that we propose can be used for the implementation of bias-preserving CNOT gates and other gate operations on Kerr-cat qubits. In this talk, we will present the theoretical part related to this novel device. |
Ziyue Hua ; Yuwei Ma ; Ming Li ; Yifang Xu ; Weiting Wang ; Jie Zhou ; Weizhou Cai ; Changling Zou ; Luyan Sun; |
| 1403 | Analysis of DC-biased Josephson Junctions for Cat Qubit Stabilisation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: An emerging approach is to encode quantum information in the two metastable states of an oscillator exchanging pairs of photons with its environment, a mechanism shown to provide protection against bit flips. In this talk, we propose a theoretical study of a novel circuit design for the implementation of this so called dissipative cat qubit. |
THIZIRI AISSAOUI ; Raphael Lescanne ; Anil Murani ; Alain Sarlette; |
| 1404 | QubiC 2.0: An Extensible Open-Source Qubit Control System Capable of Mid-Circuit Measurement and Feed-Forward Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We developed an open-source FPGA-based quantum bit control system called QubiC for superconducting qubits. |
Gang Huang ; Yilun Xu ; Neelay Fruitwala ; Abhi Rajagopala ; Ravi Naik ; Kasra Nowrouzi ; David Santiago ; Irfan Siddiqi; |
| 1405 | Demonstration of Quantum State Teleportation Using The QubiC Distributed Processor Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The compiler stack also supports standard quantum software tools and programming languages, such as TrueQ, pyGSTi, and OpenQASM3. In this presentation, we will detail the design of both the processor and compiler stack, and demonstrate its capabilities with a simple quantum state teleportation experiment using transmon qubits at the LBNL Advanced Quantum Testbed. |
Neelay Fruitwala ; Gang Huang ; Yilun Xu ; Abhi Rajagopala ; Ravi Naik ; Kasra Nowrouzi ; David Santiago ; Irfan Siddiqi; |
| 1406 | A Fast-sealing Microwave Cavity Compatible with Measurements of Superconducting Qubits and Resonators Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we develop an approach to measure the decoherence of superconducting resonators and qubits in a 3D cavity that can be sealed and evacuated on the order of a few minutes. |
Richard Germond ; Chi Zhang ; Noah Janzen ; Anne-Marie Valente-Feliciano ; Mustafa Bal ; Adrian Lupascu; |
| 1407 | 3D Integration for Extensible Quantum Processors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: I will discuss challenges of implementing and vetting 3D heterogeneous technologies to enable extensible superconducting qubit processors. |
Donna-Ruth Yost; |
| 1408 | Enhancing Quantum I/O: Proven Transmon Qubit Performance with Scalable I/O Over Flexible Integrated Circuits Part 1/2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To that end, we present flexible planar multichannel microwave circuits (flex) with a combination of integrated resistive, and superconducting structures to link control- and read-out electronics to the qubits at milliKelvin temperatures. |
Wouter Bos ; Marc de Voogd ; Daan Kuitenbrouwer ; Kiefer Vermeulen ; Jesse de Groot ; Ruben van Gulik ; Sal Bosman ; Rob van den Brink ; Don Adrichem ; Nikolai Drobotun ; Jakob Kammhuber ; Daniël Bouman ; Artem Nikitim ; Sumender Singh; |
| 1409 | Enhancing Quantum I/O: Proven Transmon Qubit Performance with Scalable I/O Over Flexible Integrated Circuits Part 2/2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To that end, we present flexible planar multichannel microwave circuits (flex) with a combination of integrated resistive, and superconducting structures to link control- and read-out electronics to the qubits at milliKelvin temperatures. |
Nikolai Drobotun ; Marc de Voogd ; Daan Kuitenbrouwer ; Kiefer Vermeulen ; Jesse de Groot ; Ruben van Gulik ; Sal Bosman ; Rob van den Brink ; Don Adrichem ; Wouter Bos ; Jakob Kammhuber ; Daniël Bouman ; Artem Nikitin ; Sumender Singh; |
| 1410 | Flex Cable Solutions for Superconducting Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a flex-cable solution that encompasses the entire signal chain. |
David Pappas ; Josh Mutus ; David Snow ; Mehrnoosh Vahidpour ; Donald David ; Ian Leahy ; Rebecca Smaha ; Sage Bauers; |
| 1411 | High-fidelity Optical Readout of A Superconducting Qubit Using A Scalable Piezo-optomechanical Transducer (Part 1) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate readout of superconducting qubits using a compact, fully integrated piezo-optomechanical transducer. |
Kiki Schuurman ; Thierry van Thiel ; Matthew Weaver ; Federico Berto ; Pim Duivestein ; Mathilde Lemang ; Martin Zemlicka ; Frederick Hijazi ; Alexandra Bernasconi ; Ella Lachman ; Mark Field ; Yuvraj Mohan ; Fokko de Vries ; N Bultink ; Jules van Oven ; Josh Mutus ; Robert Stockill ; Simon Gröblacher; |
| 1412 | High-fidelity Optical Readout of A Superconducting Qubit Using A Scalable Piezo-optomechanical Transducer (Part 2) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: [1] We present here high power, demolition readout of a superconducting transmon qubit with microwave and optical approaches. |
Matthew Weaver ; Thierry van Thiel ; Kiki Schuurman ; Federico Berto ; Pim Duivestein ; Mathilde Lemang ; Martin Zemlicka ; Frederick Hijazi ; Alexandra Bernasconi ; Ella Lachman ; Mark Field ; Yuvraj Mohan ; Fokko de Vries ; Niels Bultink ; Jules van Oven ; Josh Mutus ; Robert Stockill ; Simon Groeblacher; |
| 1413 | Controlled Impedance Termination for High-Density Multicoax Assemblies in Cryogenic Environments: Mitigating Thermal Contraction Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: As quantum computing systems scale up and qubit counts must increase to achieve practical quantum computing, integrators have favored solderless ganged coaxial approaches. … |
Henry Nonack; |
| 1414 | Qblox Qubit Control Module: Generating High Fidelity Distortion-corrected Flux Pulses Without A Bias-tee Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present an integrated hardware solution, the Qblox Qubit Control Module, that combines the low drift and low 1/f noise of dedicated bias equipment with the speed of fast arbitrary waveform generators. |
Willemijntje Uilhoorn ; Rohit Navarathna ; Rahul Vyas ; Francesco Battistel ; Francesco Maio ; Calin Sindile ; Jordy Gloudemans ; Marijn Tiggelman ; Joel Foreman ; Jules van Oven ; Cornelis Bultink; |
| 1415 | Real-time Compensation of Flux Pulse Distortions for The Control of Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work we utilize pre-compensation filters applied in real-time on Zurich Instruments arbitrary waveform generators to correct the line response for the entire gate sequence. |
Malay Singh ; Florian Maier ; Niklas Glaser ; Gleb Krylov ; Leon Koch ; Ivan Tsitsilin ; Niklas Bruckmoser ; Gerhard Huber ; Johannes Schirk ; João Romeiro ; Max Werninghaus ; Stefan Filipp; |
| 1416 | Tuning of Flux-Tunable Transmon Qubits Using Bayesian Optimisation Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Efficient and fast qubit tune-up is essential for scaling up quantum computers to the large number of qubits required for a quantum advantage. As the number of qubits in our … |
Joel Pendleton; |
| 1417 | Searching for Applications of Quantum Computing in Industry Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation I will share some lessons learned from working with industrial-scale optimization use cases. |
Helmut Katzgraber; |
| 1418 | The Efficient Exact Solution for Binary Quadratic Programming Problems By Quantum Annealing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This talk will present an algorithm structure and experimental results that efficiently compute exact solutions using column generation, quantum annealing, and branch-and-bound methods. |
Sota Hirama ; Masayuki Ohzeki; |
| 1419 | Quantum Constrained Hamiltonian Optimization Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, for some such problems, the task of finding any feasible solution is actually easy. In this work we present the Quantum Constrained Hamiltonian OPtimization (Q-CHOP) algorithm as an alternative to the standard adiabatic algorithm for solving this type of optimization problem. |
Benjamin Hall; |
| 1420 | Universal Quantum Computation Using Quantum Annealing with Transverse Field Ising Hamiltonian Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this paper, we present a practical method for implementing universal quantum computation within the conventional quantum annealing architecture using the transverse field Ising Hamiltonian. |
Takashi Imoto ; Yuki Susa ; Ryoji Miyazaki ; Tadashi Kadowaki ; Yuichiro Matsuzaki; |
| 1421 | A General Method to Construct Mean Field Counter Diabatic Driving for Quantum Annealing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we propose a general and practical method to obtain the Mean field (MF) approximated CD term by using the MF dynamics of magnetization. |
Hiroshi Hayasaka ; Takashi Imoto ; Yuichiro Matsuzaki ; Shiro Kawabata; |
| 1422 | Benchmarking Hard Ising Instances with Energy Scrambling Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose benchmarks of a class of instances produced by random energy scrambling, inspired by the McEliece and Niederreiter post-quantum cryptographic protocols, which allow for both solution planting and computational hardness guarantees in general. |
Humberto Munoz-Bauza ; Salvatore Mandra ; Gianni Mossi ; Eleanor Rieffel; |
| 1423 | Quantum-Inspired Fluid Dynamics Simulations at Scale with GPU Acceleration Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Through the adaption of the algorithm for enhanced parallelization and the utilization of massively parallel GPU-enabled simulations at high Reynolds numbers via NVIDIA’s cuQuantum library, our study offers valuable insights into the applicability, scaling, and performance of the algorithm, emphasizing practical implications. |
Leonhard Hölscher ; Pooja Rao ; Lukas Müller ; Johannes Klepsch ; Andre Luckow ; Jin-Sung Kim ; Tobias Stollenwerk ; Frank Wilhelm; |
| 1424 | Fluctuation-Informed Quantum Annealing Schedules Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We apply our methods to a well-known set of hard MAX 2-SAT instances [arXiv:1401.7320, Phys. |
Krish Ramesh ; Tobias Stollenwerk ; Frank Wilhelm ; Tim Bode; |
| 1425 | Approximate Solution of MaxCut with Low-depth Clifford Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Improved or novel classical algorithms which exploit special structures of the problems under study unveiled by their quantum counterparts. In this work we focus on the MaxCut problem and inspired by the solution circuits obtained with an adaptive variant of the quantum approximate optimization algorithm, we introduce a new quantum-inspired approximation algorithm, ADAPT-Clifford, for this problem. |
Manuel Munoz Arias ; Stefanos Kourtis ; Alexandre Blais; |
| 1426 | Continuous-time Quantum Walks for MAX-CUT Are Hot Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this presentation we focus on tackling MAX-CUT on random graphs with continuous-time quantum walks. |
Robert Banks ; Dan Browne ; Paul Warburton; |
| 1427 | Ground State Geometry of Random Rydberg Atom Graphs Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we wish to investigate the geometry arising from random graphs of Rydberg atoms. |
Karlo de Leon ; Dries Sels; |
| 1428 | Novel Readout for Quantum Annealing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will be presenting a comparison between the new readout system and a standard coplanar waveguide resonator readout method, both connected to the same qubit. |
Luca Cozzolino ; David López-Núñez ; Elia Bertoldo ; Fabian Zwiehoff ; Paul Baity ; Martin Weides ; Manel Martinez ; Pol Forn-Díaz; |
| 1429 | Practical Hybrid Digital-analog Quantum Learning on Rydberg Atom Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose hybrid digital-analog learning algorithms on Rydberg atom arrays, combining the potentially practical utility of quantum learning and near-term realizability with the rapidly scaling architectures of neutral atoms. |
Kristina Wolinski ; Milan Kornjaca ; Susanne Yelin ; Jonathan Lu ; Lucy Jiao ; Hong-Ye Hu ; Fangli Liu ; Shengtao Wang; |
| 1430 | Quantum-enhanced Machine Learning Using Phosphorus-doped Silicon Quantum Dots Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will show how we can leverage atomically precise manufacturing of phosphorus dopants in silicon to realise a quantum system for generating features for use in a random quantum feature algorithm. |
Sam Sutherland ; Casey Myers ; Brandur Thorgrimmson ; Joris Keizer ; Matthew Donnelly ; Yousun Chung ; Samuel Gorman ; Michelle Simmons; |
| 1431 | Utilizing The Non-interacting Bionic Particle Sampling to Solve Image Classification Tasks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The presentation discusses the design of the encoder, reservoir, and measurement process. |
Akitada Sakurai ; Aoi Hayashi ; William Munro ; Kae Nemoto; |
| 1432 | Quantum-enhanced Physical-layer Data Learning with A Variational Sensor Network Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we develop supervised learning assisted by an entangled sensor network (SLAEN) for nonlinear classification. |
Pengcheng Liao ; Bingzhi Zhang ; Quntao Zhuang; |
| 1433 | Quadri-partite Quantum-Assisted VAE As A Calorimeter Surrogate Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Simulating a single LHC event with Geant4 currently devours around 1000 CPU seconds, with calorimeter simulations imposing substantial computational demands [2]. To address this challenge, we propose a Quantum-Assisted deep generative model. |
J. Quetzalcoatl Toledo-Marin ; Hao Jia ; Sebastian Gonzalez ; Sehmimul Hoque ; Abhishek Abhishek ; Tiago Vale ; Soren Andersen ; Geoffrey Fox ; Roger Melko ; Maximilian Swiatlowski ; Wojciech Fedorko; |
| 1434 | Quantum Hardware-Enabled Molecular Dynamics Via Transfer Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Transfer learning offers a workaround, where one first trains models on larger, less accurate classical datasets and then refines them on smaller, more accurate quantum datasets. We explore this approach by training machine learning models to predict a molecule’s potential energy based on its geometric structure using Behler-Parrinello neural networks. |
Abid Khan ; Bryan Clark ; Prateek Vaish ; Yaoqi Pang ; Brenda Rubenstein ; Michael Chen ; Norm Tubman; |
| 1435 | Machine Learning with Near-Term Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Recent studies on quantum computing simulators and hardware indicate that parametrized quantum circuits used for learning on classical data can achieve results similar to that of classical machine learning models while using significantly fewer parameters. We will present results from these studies in a variety of application areas ranging from image recognition to modeling financial data on up to 20 qubits. |
Sonika Johri; |
| 1436 | Quantum Reservoir Computing with Neutral Atom Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: While it has been considered a promising application for near-term quantum computers, current quantum machine learning methods require large quantum resources and suffer from gradient vanishing issues. To alleviate this, we propose a general-purpose quantum reservoir computing algorithm for neutral atom quantum simulators that is resource-frugal, noise-resilient, and scalable. |
Milan Kornjaca ; Hong-Ye Hu ; Chen Zhao ; Jonathan Wurtz ; Alexei Bylinskii ; Pedro Lopes ; Xun Gao ; Fangli Liu ; Shengtao Wang; |
| 1437 | A Practical Quantum Reservoir Computing Platform for Quantum Data Processing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a QRC implementation of quantum state tomography, which is performed with near-optimal measurement resources and without the need to calibrate any gate sequences. |
Gerasimos Angelatos ; Guilhem Ribeill ; Supantho Rakshit ; Michael Grace ; Leon Bello ; Hakan Tureci; |
| 1438 | Practical and Versatile Reservoir-filter for Optimizing Multi-state Qubit Readout Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate a reservoir-computing inspired learning scheme [1] for optimal temporal processing of quantum measurement data dominated by noise of a quantum-mechanical origin, such as quantum jumps or added noise of quantum amplifiers, for classification of an arbitrary number of states. |
Saeed Khan ; Ryan Kaufman ; Michael Hatridge ; Hakan Tureci; |
| 1439 | Reservoir Computing with Feedback for Quantum State Identification Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Reservoir computing offers a potential solution by substituting a naturally occurring nonlinear dynamical system for the neural network. |
Daniel Soh ; Peter Ehlers ; Hendra Nurdin; |
| 1440 | Hierarchy of The Echo State Property in Quantum Reservoir Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, the conventional definition of ESP does not aptly describe possibly non-stationary systems, where statistical properties evolve. To address this issue, we introduce two new categories of ESP: non-stationary ESP designed for possibly non-stationary systems, and subspace/subset ESP designed for systems whose subsystems possess ESP. |
Shumpei Kobayashi ; Kohei Nakajima ; Quoc Hoan Tran; |
| 1441 | Noise Vs Quantum Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Noise limits our ability to error-mitigate, a term that refers to near-term schemes where errors that arise in a quantum computation are dealt with in classical pre-processing. I present a unifying framework for error mitigation and an analysis that strongly limits the degree to which quantum noise can be effectively `undone’ for larger system sizes, and shows that current error mitigation schemes are more or less as good as they can be. |
Antonio Anna Mele ; Armando Angrisani ; Daniel Stilck França ; Jens Eisert ; Johannes Jakob Meyer ; Soumik Ghosh ; Sumeet Khatri ; Yihui Quek; |
| 1442 | Error Mitigated Metasurface-Based Randomized Measurement Schemes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this paper, we design an innovative approach leveraging metasurfaces to perform randomized measurements on photonic qubits, together with error mitigation techniques that suppress realistic metasurface measurement noise. |
Hang Ren ; Yipei Zhang ; Ze Zheng ; Cuifeng Ying ; Lei Xu ; Mohsen Rahmani ; Birgitta Whaley; |
| 1443 | High-accuracy Noise Characterization for Error Mitigation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present a new method for boosting the accuracy of noise models characterization, thereby increasing the potential effectiveness of noise-aware error mitigation strategies. |
Alessio Calzona; |
| 1444 | Tight Bounds for Pauli Channel Learning with and Without Entanglement Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we define learning algorithms without entanglement to be those that only utilize separable states, measurements, and operations between the main system of interest and an ancillary system. |
Senrui Chen ; Changhun Oh ; Sisi Zhou ; Hsin-Yuan Huang ; Liang Jiang; |
| 1445 | Learning About Quantum Noise at Scale Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The main challenge to the realization of quantum computers is a complex set of noise processes that inevitably corrupt calculations. |
Alireza Seif ; Haoran Liao ; Swarnadeep Majumder ; Senrui Chen ; Derek Wang ; Elisa Bäumer ; Moein Malekakhlagh ; Ali Javadi-Abhari ; Liang Jiang ; Zlatko Minev; |
| 1446 | Criss-Crossed Crosstalk: Scalable Characterization of Crosstalk and Spatiotemporally Correlated Dephasing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This fails to capture information about temporal correlations in the noise, which can be leveraged to design customized control and error mitigation strategies. To fill this gap, we introduce an extremely scalable protocol for characterizing spatiotemporally correlated dephasing noise as well as long-range ZZ crosstalk in a large, N-qubit QIP. |
Vivian Maloney ; Leigh Norris; |
| 1447 | Adaptive Quantum Tomography in A Non-Deterministic Measurement Environment Utilizing Superconducting Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce in this work a new optimal measurement basis to achieve fast adaptive quantum state tomography and a minimum magnitude of infidelity in an indistinct measurement system. |
Hyeok Hwang ; JeaKyung Choi ; Eunseong Kim; |
| 1448 | Purification-based Quantum Simulations Via Clustering Property Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we aim to overcome the drawbacks by restricting the entangled measurements to the vicinity of the local observables to be measured, when the locality of the system can be exploited. |
Hideaki Hakoshima ; Suguru Endo ; Kaoru Yamamoto ; Yuichiro Matsuzaki ; Nobuyuki Yoshioka; |
| 1449 | Strong Microwave Squeezing Above 1 Tesla and 1 Kelvin Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we demonstrate a new record for the direct measurement of microwave squeezing. |
Anders Kringhøj ; Arjen Vaartjes ; Wyatt Vine ; Tom Day ; Andrea Morello ; Jarryd Pla; |
| 1450 | Multiple Quantum Coherence Verification: Characterizing Entanglement Noise in Superconducting Quantum Processors Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Quantum processors based on superconducting circuits are promising candidates for scalable quantum computing, yet they are susceptible to specific noise types that degrade entanglement fidelity. This study presents a novel approach using the Greenberger-Horne-Zeilinger (GHZ) verification protocol to characterize source noise affecting these processors’ entangling gates. |
Vicente Leyton Ortega ; Titus Morris; |
| 1451 | Impact of Surface Treatment on Dielectric and Magnetic Defects in Superconducting Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we use the technique of SWAP spectroscopy to map out the spectrum of TLS that are strongly coupled to transmon qubits, and we use single-shot Ramsey interferometry to extract the power spectral density of 1/f flux noise in the qubit loop. |
Sohair Abdullah ; David Harrison ; Spencer Weeden ; Robert McDermott; |
| 1452 | Spatio-temporal Recognition of Charge Noise Sources in 28Si/SiGe Spin Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we analyze the noise cross-correlation spectra of two interacting spin qubits in an isotopically purified 28Si/SiGe device. |
Juan Rojas-Arias ; Akito Noiri ; Jun Yoneda ; Peter Stano ; Takashi Nakajima ; Kenta Takeda ; Takashi Kobayashi ; Amir Sammak ; Giordano Scappucci ; Daniel Loss ; Seigo Tarucha; |
| 1453 | Interferometric Transmon Readout with Two-Mode Squeezed Light, Part 1 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In the first part of this talk, we present the experiment design and initial results of our interferometric readout, focusing on losses in the system and careful characterization of the squeezed light in our interferometer, as well as how the high saturation power of our amplifiers allows us to optimize the system to demonstrate high degrees of one- and two-mode squeezing. |
Maria Nowicki ; Boris Mesits ; Ryan Kaufman ; Leon Bello ; Saeed Khan ; Katarina Cicak ; José Aumentado ; Hakan Tureci ; Michael Hatridge; |
| 1454 | Interferometric Transmon Readout with Two-Mode Squeezed Light, Part 2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate that the state-dependent noise can vary widely based on interferometer settings, for instance falling at least – 1.4 dB relative to un-squeezed vacuum. |
Boris Mesits ; Maria Nowicki ; Ryan Kaufman ; Leon Bello ; Saeed Khan ; Katarina Cicak ; José Aumentado ; Hakan Tureci ; Michael Hatridge; |
| 1455 | Interferometric Transmon Readout with Two-Mode Squeezed Light, Part 3 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Standard SU(1,1) interferometers rely on photon number measurements at the outputs, however, in superconducting circuits, implementing photon number measurement for readout is inherently challenging. To overcome this limitation, we propose a novel scheme that leverages a non-linear amplifier to efficiently execute the experiment using only coherent homodyne measurements. |
Leon Bello ; Saeed Khan ; Boris Mesits ; Maria Nowicki ; Ryan Kaufman ; Katarina Cicak ; José Aumentado ; Michael Hatridge ; Hakan Tureci; |
| 1456 | Josephson Traveling-wave Parametric Amplifiers Based on Aluminum Coplanar Lumped-element Waveguides Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we propose a four-wave-mixing JTWPA design based on aluminum coplanar lumped elements and Josephson junctions, where phase-matched gain is achieved with a periodic modulation in their geometries. |
C. W. Sandbo Chang ; Arjan van Loo ; Hiroki Kutsuma ; Yu Zhou ; Shuhei Tamate ; Yasunobu Nakamura; |
| 1457 | Low-loss Fabrication Platform for Superconducting Microwave Quantum Circuitry Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present characterization and optimization of the fabrication process and show that it enables implementation of a variety of circuits: including DC- and RF-SQUID based Josephson parametric amplifiers (JPA), compact Purcell filters for superconducting qubits, and traveling-wave parametric amplifiers (TWPA) with thousands of JJs and low attenuation per unit length. |
Katarina Cicak ; Kristen Genter ; Maxime Malnou ; José Estrada ; Kaixuan Ji ; Florent Lecocq ; Raymond Simmonds ; John Teufel ; José Aumentado; |
| 1458 | Characterization of Added Noise and Loss Mechanisms in Superconducting Kinetic Inductance Traveling Wave Parametric Amplifiers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present a detailed characterization of the added noise of a superconducting Kinetic Inductance Traveling Wave Parametric Amplifier (KI-TWPA or KIT) capable of operating within two quanta of the SQL over 3 GHz of bandwidth. |
Logan Howe ; Andrea Giachero ; Michael Vissers ; Jordan Wheeler ; Jason Austermann ; Johannes Hubmayr ; Joel Ullom; |
| 1459 | Monitoring The Energy of A Cavity By Observing The Emission of A Repeatedly Excited Qubit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In standard protocols, it requires to perform a series of gates on the qubit that are conditioned on the cavity occupation, followed by readout operations on the qubit using an ancillary readout resonator [1-3]. Recently, our group introduced a way to realize this counting by multiplexing the driving tones on the qubit and continuously extracting information about the number of photons. |
Hector Hutin ; Antoine Essig ; Réouven Assouly ; Pierre Rouchon ; Audrey Bienfait ; Benjamin Huard; |
| 1460 | Limits of Broadband Amplification in Resonant Josephson Parametric Amplifiers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk we present the design of a planar broadened RF-SQUID array amplifier, targeting 500-1000 MHz of total bandwidth in a degenerate design, and investigate limits of achievable bandwidth. |
Ryan Kaufman ; Maria Nowicki ; Boris Mesits ; José Aumentado ; Michael Hatridge; |
| 1461 | Vacuum Squeezing in Resonant SNAIL Parametric Amplifier Operated Near The Kerr-free Point Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To date, we have observed approximately 1dB of squeezing at our detection electronics, and will discuss calibration of the measurement setup to infer the level of vacuum squeezing at the SPA. |
Theo Shaw ; Zhuoqun Hao ; Ameya Riswadkar ; Josiah Cochran ; Shyam Shankar; |
| 1462 | Computational Tools for Josephson Traveling Wave Parametric Amplifiers in Frequency Domain and Time Domain Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe the development of a custom time-domain simulation code programmed in Julia language [5] to complement the harmonic balance method used in [4]. |
Visa Vesterinen ; Heikki Systä ; Nils Tiencken ; Debopam Datta ; Jorden Senior ; Joonas Govenius; |
| 1463 | High Frequency Microwave Packaging for Josephson Traveling Wave Parametric Amplifiers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we present an approach to high frequency microwave package design that optimizes package and connector modes, minimizes wirebonds on interposer chips, and employs signal-line compensation strategies for better impedance matching throughout. |
Jennifer Wang ; Alec Yen ; Kaidong Peng ; Wouter Van De Pontseele ; Katrina Silwa ; Patrick Harrington ; Yanjie Qiu ; Kyle Serniak ; Mollie Schwartz ; Joseph Formaggio ; William Oliver ; Kevin O’Brien; |
| 1464 | Flux-Pumped Double-SQUID Josephson Parametric Amplifier Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In our work, we design a flux-pumped double-SQUID JPA which allows us to eliminate the Kerr nonlinearity from the Hamiltonian. |
KAGAN YANIK ; Irwin Huang ; Bibek Bhandari ; AHMED HAJR ; Bingcheng Qing ; Ke Wang ; Andrew Jordan ; Justin Dressel ; Irfan Siddiqi; |
| 1465 | Low Power Inductance Traveling Wave Parametric Amplifier for Detectors and Qubits Readout Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this contribution, we present the new proposed line design, the fabrication procedure and initial device characterization, including gain and added noise. |
Andrea Giachero ; Logan Howe ; Michael Vissers ; Jordan Wheeler ; Maxime Malnou ; Jason Austermann ; Johannes Hubmayr ; Angelo Nucciotti ; Joel Ullom; |
| 1466 | Broadband CPW-based Impedance-transformed Josephson Parametric Amplifier Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we introduce a straightforward yet effective wideband impedance matched JPA design that integrates a tapered coplanar waveguide transmission line. |
Xinyu Liu ; Hengjiang Ren ; Jie Luo ; Bingcheng Qing ; Long Nguyen ; William Livingston ; Noah Goss ; AHMED HAJR ; Trevor Chistolini ; Zahra Pedramrazi ; David Santiago ; Irfan Siddiqi; |
| 1467 | Forward-backward Simulations of Einstein-Podolsky-Rosen Correlations and Bell Nonlocality Reveal Hidden Causal Loops Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We solve for the measurement dynamics in terms of stochastic phase space variables based on the Q function. |
Margaret Reid ; Peter Drummond; |
| 1468 | Classifying Causal Structures: Ascertaining When Classical Correlations Are Constrained By Inequalities Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: For both those reasons, it is important to classify causal scenarios into those which impose inequality constraints versus those which do not. Here we develop methods for detecting such scenarios by appealing to d-separation, e-separation, and incompatible supports. |
Shashaank Khanna ; Matthew Pusey ; Marina Ansanelli ; Elie Wolfe; |
| 1469 | Error and Disturbance As Irreversibility with Applications: Unified Definition, Wigner–Araki–Yanase Theorem and Out-of-Time-Order Correlator Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we show that error and disturbance can be defined as special cases of the irreversibility of quantum processes. |
Haruki Emori ; Hiroyasu Tajima; |
| 1470 | Clifford Group and Unitary Designs in The Presence of Symmetry Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present the symmetric generalization of the well-known statement that the Clifford group is a unitary 3-design, with the symmetric extension of unitary designs. |
Yosuke Mitsuhashi ; Nobuyuki Yoshioka; |
| 1471 | Random Unitaries with SU(d) Symmetry: OTOCs and Covariant Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our work invites further research on quantum information with continuous symmetries, where the mathematical tools developed in this work are expected to be useful. |
Han Zheng ; Zimu Li ; Yunfei Wang ; Liang Jiang ; Zi-Wen Liu ; Junyu Liu; |
| 1472 | Information Dynamics in Random Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will discuss our two works on information dynamics in random quantum circuits, one of the minimally structured models that capture generic chaotic behavior. |
Jingze Zhuang; |
| 1473 | Extracting Randomness from "Magic" States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Many constructions in quantum information science rely on ensembles of random unitaries or states, prompting intense study on the topic of randomness within the context of the field. In this presentation, we show that there is a direct mathematical relationship between the magic of a multiqubit pure state and the randomness of the post-measurement ensemble obtained from measuring out subsystems of this state. |
Christopher Vairogs ; Bin Yan; |
| 1474 | Proper Measures of Correlations: The Case for Rényi Mutual Informations Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we consider properly defined 2-parameter Rényi generalizations of the quantum mutual information. |
Akash Vijay ; Laimei Nie ; Jonah Kudler-Flam; |
| 1475 | Local Weak Measurements As A Probe of The Spectrum of Quantum Magnets Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we explore how sequences of local weak measurements can allow us to induce and then simultaneously detect excitations in quantum magnets. |
Carter Swift ; Nandini Trivedi; |
| 1476 | Two-Source Topological Phases and A New Method for Testing Bell-CHSH Inequalities Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this regard, the joint probabilities of particle arrival at each of two spatially separated detectors for momentum-correlated states can be calculated by considering two-source AB and AC systems in EPR-Bohm type hybrid gedanken experimental setups. From this point of view, in this work, the effect of topological phases on quantum entangled states will be investigated and it will be shown that the system to be designed using beam splitters and phase retarders can be used as an analog for joint spin measurements within the framework of entirely quantum mechanics. |
Hasan Cildiroglu; |
| 1477 | Entanglement Entropy of Interacting Fermions from Correlation Functions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The current is local in real space and present only in the subsystem of interest. This lets us construct a diagrammatic representation of EE in terms of connected correlators in the standard unreplicated field theory. |
Saranyo Moitra ; Rajdeep Sensarma; |
| 1478 | Separability Criterion Using One Observable for Special States: Entanglement Detection Via Quantum Quench Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we establish the class of states where measuring connected correlations in just basis is sufficient and necessary to detect bipartite separability, provided the appropriate basis and observables are chosen. |
Roopayan Ghosh ; Sougato Bose; |
| 1479 | Quantum Entanglement Phase Transitions and Computational Complexity: Insights from Ising Models Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this paper, we construct 2-dimensional bipartite cluster states and perform single-qubit measurements on the bulk qubits. |
Hanchen Liu ; Vikram Ravindranath ; Xiao Chen; |
| 1480 | Optimal Lower Bound of The Average Indeterminate Length Lossless Block Encoding Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We encode any tensor product of $ml$ many states emitted by the quantum source by breaking it into $m$ many blocks where each block has length $l$, and considering sequences of $m$ many isometries so that each isometry maps one of these blocks into the Fock space, followed by the concatenation of their images. We only consider certain sequences of such isometries that we call “special block codes" in order to ensure that the concatenation is also an isometry, and hence the string of alphabet states is uniquely decodable. |
George Androulakis ; Rabins Wosti; |
| 1481 | Boson-Assisted Quantum Error-Correcting Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we present a hybrid QECC that leverages both spin and bosonic degrees of freedom in systems combining both spins and bosons. |
Omid Khosravani ; Or Katz ; Kenneth Brown; |
| 1482 | A Multi-mode Traveling-wave Josephson Converter for On-chip Circulation: Part I Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Unfortunately, existing implementations of on-chip non-reciprocal components face limitations in terms of bandwidth, tunability, and isolation. In this two-part talk, we introduce a novel method that utilizes a two-mode transmission line doped with Josephson junctions. |
Phillipe Campagne-Ibarcq ; Matthieu Praquin ; Vincent Lienhard ; Aron Vanselow ; Zaki Leghtas; |
| 1483 | A Multi-mode Traveling-wave Josephson Converter for On-chip Circulation: Part II Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Unfortunately, existing implementations of on-chip non-reciprocal components face limitations in terms of bandwidth, tunability, and isolation. In this two-part talk, we introduce a novel method that utilizes a two-mode transmission line doped with Josephson junctions. |
Matthieu Praquin ; Vincent Lienhard ; Aron Vanselow ; Zaki Leghtas ; Phillipe Campagne-Ibarcq; |
| 1484 | Microwave Engineering of Parametric Interactions in Superconducting Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To that end, we developed a description of parametric interactions–frequency conversion and amplification processes–from a microwave engineering point of view, which allows us to harness established band-pass network-synthesis methods in our circuit designs. |
Ofer Naaman; |
| 1485 | Traveling Wave Parametric Amplifiers with Inbuilt Reverse Isolation, Part I Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present our efforts towards building a Josephson-junction-based TWPA that utilizes nonlinearities not only for amplification but also to upconvert backward propagating modes to a frequency band that can be easily discarded, effectively providing reverse isolation. |
Bekim Fazliji ; Arpit Ranadive ; Gwenael Legal ; Giulio Cappelli ; Guilliam Butseraen ; Cécile Naud ; Quentin Ficheux ; Wiebke Guichard ; Luca Planat ; Olivier Buisson ; Nicolas Roch; |
| 1486 | Traveling Wave Parametric Amplifiers with Inbuilt Reverse Isolation, Part II Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We will present our efforts towards building a Josephson-junction-based TWPA that utilizes nonlinearities not only for amplification but also to upconvert backward propagating modes to a frequency band that can be easily discarded, effectively providing reverse isolation. |
Arpit Ranadive ; Bekim Fazliji ; Gwenael Legal ; Giulio Cappelli ; Guilliam Butseraen ; Luca Planat ; Cécile Naud ; Quentin Ficheux ; Wiebke Guichard ; Olivier Buisson ; Nicolas Roch; |
| 1487 | TWPAC – The Traveling-Wave Parametric Amplifier and Converter: Design and Characterization Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To circumvent this issue, we consider a TWPA with forward gain and backward isolation, achieved by using two parametric processes: (i) parametric amplification in the forward direction, and (ii) frequency conversion in the backward direction. In this talk we will discuss experimental progress toward the design, fabrication and basic scattering characterization of this traveling-wave parametric amplifier and converter – or TWPAC. |
Maxime Malnou ; Benton Miller ; José Estrada ; Katarina Cicak ; Kristen Genter ; John Teufel ; José Aumentado ; Florent Lecocq; |
| 1488 | Embedded Amplifier for Efficient Superconducting Qubit Readout, Part 1: Theory Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will discuss the theoretical challenges in understanding the quantum dynamics, focusing on extracting qubit measurement and dephasing rates. |
Lindsay Orr ; Benton Miller ; Florent Lecocq ; Anja Metelmann; |
| 1489 | Embedded Amplifier for Efficient Superconducting Qubit Readout, Part 2: Experiment Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we will discuss experimental progress toward directly embedding a qubit inside a directional amplifier to further increase measurement efficiency. |
Benton Miller ; Lindsay Orr ; Bradley Hauer ; Katarina Cicak ; Raymond Simmonds ; José Aumentado ; John Teufel ; Anja Metelmann ; Florent Lecocq; |
| 1490 | Noise Characterization of A Floquet-Mode Josephson Traveling-Wave Parametric Amplifier Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we report the noise characterization result of a low-loss, qubit-fabrication-compatible Floquet TWPA device using both the circuit-QED and the waveguide-QED (wQED) power calibration methods. |
Kaidong Peng ; Jennifer Wang ; Jeffrey Knecht ; Alec Yen ; Gregory Cunningham ; Yufeng Ye ; Katrina Sliwa ; Bethany Niedzielski ; Yanjie Qiu ; Mahdi Naghiloo ; Max Tan ; Alicia Zang ; Kyle Serniak ; Mollie Schwartz ; William Oliver ; Kevin O’Brien; |
| 1491 | Demostration of An Rf-SQUID Based Three-wave Mixing Traveling-wave Parametric Amplifier Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present simulations and experimental results including noise characterization of the device. |
Victor Gaydamachenko ; Christoph Kissling ; Marat Khabipov ; Fabian Kaap ; Sergey Lotkhov ; Asen Georgiev ; Bhoomika Bhat ; Ralf Dolata ; Alexander Zorin ; Lukas Grünhaupt; |
| 1492 | Assessing The Impact of Fabrication Variations on Josephson Travelling Wave Parametric Amplifiers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we analyze the superconducting circuit performance in the presence of fabrication variations to predict the process constraints needed to enable the high reproducibility of micro- and nanostructured components in the JTWPA fabricated on an all-Aluminium qubit-compatible process. |
Andres Lombo ; Kaidong Peng ; Eric Bui ; Aranya Goswami ; William Oliver ; Kevin O’Brien; |
| 1493 | Embedding Networks for Ideal Performance of A Travelling-wave Parametric Amplifier Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate the required embedding networks to enable ideal performance for a high-gain travelling-wave parametric amplifier (TWPA) based on three-wave mixing (3WM). |
Hampus Renberg Nilsson ; Anita Fadavi Roudsari ; Daryoush Shiri ; Robert Rehammar ; Vitaly Shumeiko ; Per Delsing; |
| 1494 | A Measurement-based Surface Code with Flying-cat Parity Checks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we present a fully deterministic approach to fault-tolerant, measurement-based quantum computing that leverages the ability of cat states to distribute entanglement between stationary qubits. |
Zoé McIntyre ; William Coish; |
| 1495 | Deterministic Bidirectional Remote Entanglement with Waveguide Quantum Electrodynamics (Part 1) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Existing approaches involving propagating microwave photons have limited fidelity due to photon loss and are often unidirectional, whereas architectures that use direct resonant coupling are bidirectional in principle, but can generally accommodate only a few local nodes. In this work, we develop a quantum interconnect comprising an emitter, receiver, and propagation channel that circumvent these issues [1]. |
Beatriz Yankelevich ; Aziza Almanakly ; Bharath Kannan ; Max Hays ; Agustin Di Paolo ; Alex Greene ; Michael Gingras ; Bethany Niedzielski ; Hannah Stickler ; Kyle Serniak ; Mollie Schwartz ; Jonilyn Yoder ; Joel Wang ; Terry Orlando ; Simon Gustavsson ; Jeffrey Grover ; William Oliver; |
| 1496 | Deterministic Bidirectional Remote Entanglement with Waveguide Quantum Electrodynamics (Part 2) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Existing approaches involving propagating microwave photons have limited fidelity due to photon loss and are often unidirectional, whereas architectures that use direct resonant coupling are bidirectional in principle, but can generally accommodate only a few local nodes. In this work, we develop a quantum interconnect comprising an emitter, receiver, and propagation channel that circumvent these issues [1]. |
Aziza Almanakly ; Beatriz Yankelevich ; Bharath Kannan ; Max Hays ; Agustin Di Paolo ; Alex Greene ; Michael Gingras ; Bethany Niedzielski ; Hannah Stickler ; Kyle Serniak ; Mollie Schwartz ; Jonilyn Yoder ; Joel Wang ; Terry Orlando ; Simon Gustavsson ; Jeffrey Grover ; William Oliver; |
| 1497 | Modeling Superconducting Circuits Interacting Through Non-standard Waveguide QED Topologies Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we relax that assumption to model waveguide QED topologies that include waveguides interrupted with qubits, waveguide junctions, and other structures. |
Melinda Andrews ; Daniel Campbell ; Stephen McCoy ; Paul Alsing ; Matthew LaHaye; |
| 1498 | Bound States in Microwave QED: Crossover from Waveguide to Cavity Regime Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this paper, we formulate a unifying theory which under a minimal set of standard approximations accounts for physical boundaries of a system in all parameter domains. |
Arkady Fedorov ; N. Pradeep Kumar ; Andrés Rosario ; Rohit Navarathna ; Maximilian Zanner ; Mikhail Pletyukhov; |
| 1499 | Controllable Slow-to-Fast-Light System in Waveguide Quantum Electrodynamics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We demonstrate a controllable slow-to-fast-light system in the microwave regime using waveguide quantum electrodynamics. |
Yu-Ting Cheng ; Kai-Min Hsieh ; Bangyao Wu ; Io-Chun Hoi; |
| 1500 | Dynamical Excitation Control and Multimode Emission of An Atom-photon Bound State Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Atom-photon bound states (APBS) arise through the coupling of quantum emitters to the band-edge of a dispersion-engineered waveguide. These bound states can mediate long-range … |
Claudia Castillo-Moreno ; Kazi Rafsanjani Amin ; Simone Gasparinetti; |
| 1501 | Slow Light in Superconducting Metamaterial Transmission Lines with Left-Handed Dispersion Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe the design and characterization of an open left-handed transmission line, to which we coupled two flux-tunable transmon qubits. |
Manabputra . ; Tianna McBroom ; Bradley Cole ; B.L.T. Plourde; |
| 1502 | Analysis of The Coupling Strength Between Transmons Interacting Via Left-Handed Metamaterials Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This multiplicity can be used to enhance qubit-qubit coupling, as opposed to just a single mode. We demonstrate that the strength of coupling between the transmon and the metamaterial modes depends on the qubit’s frequency and its relative position with respect to the transmission line in a nontrivial manner, setting it apart from coupling via conventional (right-handed) transmission lines. |
Arne Schlabes ; Mohammad Ansari; |
| 1503 | Loss Channel Analysis of Cat Qubit Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This presentation will use time-dependent perturbation theory, and numerically exact Floquet methods, to quantify parametrically-activated spurious relaxation processes. |
Léon Carde ; Pierre Rouchon ; Joachim Cohen ; Alexandru Petrescu; |
| 1504 | Accurate Modeling of The Storage and Buffer Nonlinearities in An Integrated Cat Qubit System Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present theoretical models of a cat qubit system that accurately captures the storage and buffer nonlinearities in an integrated setting with many coupled modes. |
Kyungjoo Noh ; Shahriar Aghaeimeibodi ; Fernando Brandão ; Connor Hann ; Harry Levine ; Greg MacCabe ; Matt Matheny ; Hesam Moradinejad ; John Owens ; Oskar Painter ; Rishi Patel ; Harald Putterman ; Joseph Iverson; |
| 1505 | Logical Performance Projections for Quantum Error Correction in A Hybrid Cat-transmon Architecture Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We numerically benchmark the performance of bias-preserving cat-transmon entangling gates, then estimate the performance of surface code logical memories. We identify parameter regimes where this architecture can offer significant overhead reductions relative to architectures without biased noise. |
Connor Hann ; Shahriar Aghaeimeibodi ; Fernando Brandão ; Kyungjoo Noh ; Harry Levine ; Greg MacCabe ; Matt Matheny ; Hesam Moradinejad ; John Owens ; Oskar Painter ; Rishi Patel ; Harald Putterman ; Joseph Iverson; |
| 1506 | Fingerprints of The Schmid Transition in A DC-biased Transmon Shunted By A High-impedance Transmission Line Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We calculate the voltage–current relation in the high-current limit and find that the corresponding resistance V(I)/I ~ I 2*R_Q/R – 2. |
Benjamin Remez ; Vladislav Kurilovich ; Maximilian Rieger ; Leonid Glazman; |
| 1507 | Signatures of Bloch Oscillations in A Transmon Shunted By A High-impedance Transmission Line Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We find the radiation spectrum, and show that the zero-point fluctuations of charge in the line make the spectrum broad-band. |
Vladislav Kurilovich ; Benjamin Remez ; Maximilian Rieger ; Leonid Glazman; |
| 1508 | NbN-based Flux Qubit with Ferromagnetic Π-junction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report a superconducting flux qubit operating at zero magnetic field by utilizing a ferromagnetic Josephson p-junction [1]. |
Sunmi Kim ; Leonid Abdurakhimov ; Duong Pham ; Wei Qiu ; Hirotaka Terai ; Sahel Ashhab ; Shiro Saito ; Taro Yamashita ; Kouichi Semba; |
| 1509 | High-efficiency Inter-chip Links Between Superconducting Qubits Through A Detachable Quantum Bus Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we present a modular hardware scheme for performing gates between superconducting transmon qubits on separated chips through a detachable quantum bus, realized with a superconducting cable. |
Michael Mollenhauer ; Michael Mollenhauer ; Abdullah Irfan ; Xi Cao ; Supriya Mandal ; Wolfgang Pfaff; |
| 1510 | Liquid Metal Enabled Modular Architecture of Superconducting Quantum Processor Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here we report high internal quality factor coplanar waveguide resonators (CPWR) interconnected by gallium alloy droplets. |
Zhancheng Yao ; Martin Sandberg ; David Abraham ; Oliver Dial ; David Bishop; |
| 1511 | Optimizing Tunable Qubit Arrays for Quantum Simulation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we show that adjusting the resonant frequencies in a tunable qubit array allows one to create a variety of different energy level structures. |
Zak Espley ; Hilary Hurst; |
| 1512 | A Modular Superconducting Qubit Architecture Using Multi-chip Tunable Couplers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present the multi-chip tunable coupler in the context of Rigetti’s past work on implementing scalable architectures and flexible gate schemes. |
Angela Chen; |
| 1513 | Targeting Superconducting Resonator Frequency on Different Substrate Materials Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We used a 4 K RF wafer prober to form a statistical data set for the center frequency of niobium superconducting readout resonators on both silicon and sapphire substrates. |
Mark Field ; David Pappas ; Brandon Boiko ; Connor Smith ; Sebastian Janik ; Josh West ; Feyza Oruc ; Kim Vu ; Cameron Kopas ; Joshua Mutus ; Andrew Bestwick; |
| 1514 | Observation of Interface Piezoelectricity in Silicon Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will report on our recent observation of the interface piezoelectric effect in crystalline silicon. |
Haoxin Zhou ; Kadircan Godeneli ; Zihuai Zhang ; Sinéad Griffin ; Alp Sipahigil; |
| 1515 | Characterization of High Quality-factor NbTiN Resonators in A Coaxial Stripline Geometry Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we investigate devices in a coaxial stripline architecture [4], because it allows very high Q values and allows efficient characterization of different loss mechanisms [5]. |
Sam Cross ; Rafael Goncalves ; Wolfgang Pfaff; |
| 1516 | Homoepitaxial Growth of Sapphire for Superconducting Circuits By Molecular-beam Epitaxy Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: C-plane sapphire with low dielectric loss is used to fabricate superconducting microwave circuits. Dielectric losses in the substrate can be potentially reduced by using a thick … |
Huijun Di ; Manas Verma ; Vladimir Protasenko ; Huili Grace Xing ; Debdeep Jena; |
| 1517 | Substrate Etching for Quasiparticle Effect Mitigation: Compatibility with Superconducting Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We fabricate, measure, and characterize superconducting coplanar waveguide (CPW) resonators located on thin (~100 nm) SiN membranes, where the Si substrate originally supporting the membranes is entirely etched away. |
Trevor Chistolini ; Kyunghoon Lee ; Archan Banerjee ; Mohammed Alghadeer ; Christian Juenger ; Maria Virginia Altoe ; Sudi Chen ; David Santiago ; Irfan Siddiqi; |
| 1518 | Transition Edge Sensors for Active Energy Removal from Silicon Substrates Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: One technique is to include additional energy removal methods. |
Miranda Thompson ; Kelsey Morgan ; John Mates ; Johnathon Gard ; Corey Rae McRae ; Florent Lecocq ; Michael Vissers ; Dan Schmidt ; Douglas Bennett ; Joel Ullom; |
| 1519 | Quasiparticle Relaxation in Superconductors Coupled to Normal Metals Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk I present experiments performed as part of the Superconducting Quantum Materials and Systems center to better understand how coupling with normal metals through direct proximity or via a tunnel barrier impacts the charge imbalance length seen in injector-detector NIS junction pairs. |
Kevin Ryan ; Venkat Chandrasekhar; |
| 1520 | Incorporating Carbon Nanotubes Into A Superconducting Quantum Bit Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: We look at the properties of carbon nanotubes (CNTs) grown on sapphire and quartz. Sapphire and quartz have several attractive features for incorporating CNTs into a quantum bit. … |
Denae Cherry ; Nathan Thobabin ; Kaiwen Zheng ; Robert Cooper ; Kater Murch ; Irma Kuljanishvili ; David Wisbey; |
| 1521 | Overview of Algorithms in Quantum Machine Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will look at a few specific problems/computational models for which quantum algorithms provide a speedup to machine learning tasks in a rigorous manner. |
Srinivasan Arunachalam; |
| 1522 | Training Support Vector Machines on Adiabatic Quantum Computers Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this paper, we describe an adiabatic quantum approach for training support vector machines. |
Prasanna Date ; Dong Jun Woun ; Kathleen Hamilton ; Eduardo Coello Perez ; Mayanka Chandra Shekar ; Francisco Rios ; John Gounley ; In-Saeng Suh ; Travis Humble ; Georgia Tourassi; |
| 1523 | Statistical Zero Knowledge Problems Inspire Novel Classification Tasks for The Quantum Kernel Support Vector Machine Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To this end, we present a new classification task reducible to order-finding that is able to be efficiently learned by the QKE-SVM. |
Saleh Naghdi ; Casey Myers ; Michelle Simmons; |
| 1524 | Quantum-classical Hybrid Algorithm to Construct Quantum Explicit Model from Quantum Kernel Method Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we introduce a quantum-classical hybrid algorithm designed to systematically and efficiently convert an implicit model to an explicit model. |
Akimoto Nakayama ; Hayata Morisaki ; Kosuke Mitarai ; Keisuke Fujii; |
| 1525 | Training Quantum Embedding Kernels with Data Re-uploading Quantum Neural Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In response, we propose the utilization of a Quantum Neural Network (QNN), specifically a data re-uploading-based QNN, to identify the optimal kernel for a given task. |
Pablo Rodriguez-Grasa ; Yue Ban ; Mikel Sanz; |
| 1526 | Quantum Algorithms for State Preparation and Data Classification Based on Stabilizer Codes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce an alternative recursive algorithm which approximates amplitude encoding with only a polynomial number of elementary gates. |
Eduardo Mucciolo ; Pejman Jouzdani ; H. Arslan Hashim; |
| 1527 | Quantum Fourier Vision Transformer Circuits for Variational Self-attention-based Learning Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we explore quantum circuits that can efficiently express the self-attention mechanism through the perspective of the operator learning in the continuous analog of the self-attention mechanism. |
Ethan Evans ; Matthew Cook ; Margarite LaBorde ; Zachary Bradshaw ; Dominic Byrne; |
| 1528 | Title: Comparative Study of Classical and Quantum Learning Models: Performance and Embedding Techniques in Binary Classification Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This study compares the performance of classical and quantum computational strategies in binary classification tasks. |
Nick Stapleton ; Vicente Leyton Ortega; |
| 1529 | Des-q: A Quantum Algorithm to Construct and Efficiently Retrain Decision Trees for Regression and Binary Classification Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce a novel quantum algorithm, named Des-q, to construct and retrain decision trees for regression and binary classification. |
Romina Yalovetzky ; Niraj Kumar ; Changhao Li ; Pierre Minssen ; Marco Pistoia; |
| 1530 | Efficient and Quantum-adaptive Machine Learning with Fermion Neural Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose fermion neural networks (FNNs) whose physical properties, such as local density of states or conditional conductance, serve as outputs, once the inputs are incorporated as an initial layer. |
Yi Zhang; |
| 1531 | High-performance Simulation of Rydberg Atom Arrays with Tensor Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By employing TEBD algorithm we showed that even a modest matrix product states bond dimension is sufficient to achieve a high fidelity solution of the wMIS problem. |
Yaroslav Kharkov ; Katharine Hyatt; |
| 1532 | Exponential Acceleration of Collective Quantum Tunneling in The Transverse Field Ising Model Using High Frequency AC Drives (Part 1) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we build on the concept of Symphonic Tunneling introduced in Mossi et al (arXiv:2306.10632), where MQT is accelerated by tuning AC fields based on details of the underlying system, to consider very high frequency drives. |
Pratik Patnaik ; Brandon Barton ; Sean Feeney ; George Grattan ; Jacob (Coby) Sagal ; Gianni Mossi ; Vadim Oganesyan ; Lincoln Carr ; Eliot Kapit; |
| 1533 | Oral: Exponential Acceleration of Collective Quantum Tunneling in The Transverse Field Ising Model Using High Frequency AC Drives – Part 2 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we numerically explore the acceleration of macroscopic quan- tum tunneling (MQT) in transverse field Ising models through the use of high frequency AC drives. |
George Grattan ; Brandon Barton ; Sean Feeney ; Pratik Patnaik ; Jacob (Coby) Sagal ; Gianni Mossi ; Vadim Oganesyan ; Lincoln Carr ; Eliot Kapit; |
| 1534 | Fast Simulation of High-Depth QAOA Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a simulator for the Quantum Approximate Optimization Algorithm (QAOA). |
Danylo Lykov ; Yuri Alexeev ; Ruslan Shaydulin ; Yue Sun ; Marco Pistoia; |
| 1535 | New Tensor Network Tools for and Beyond Rydberg Systems Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Herein, we start from the pulse level, continue via compilation and optimization, and reach up to the full simulation of an 8×8 grid of strontium-88 atoms. |
Daniel Jaschke ; Alice Pagano ; Sebastian Weber ; Marco Ballarin ; Nora Reinić ; Simone Montangero; |
| 1536 | Simulation of Plasmonic Behaviors in Extended Hubbard Model Using Tensor Networks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We simulate the collective plasmonic behaviors in fermionic systems using an extended Hubbard model and utilizing various tensor network techniques to overcome the severe scaling limitation of exact diagonalization in such systems. |
Keyi Liu ; Garnett Bryant ; Emily Townsend; |
| 1537 | Constant-depth Preparation of Matrix Product States with Adaptive Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present a general method capable of deterministically preparing a wide variety of matrix product states in constant depth, including paradigmatic examples such as the AKLT state, the GHZ state, and the Majumdar-Ghosh state. |
Kevin Smith ; Abid Khan ; Tzu-Chieh Wei ; Steven Girvin; |
| 1538 | Macrostates Versus Microstates in The Classical Simulation of Critical Phenomena in Quench Dynamics of 1D Ising Models Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study critical phenomena in the quench dynamics of one-dimensional (1D) Ising models using truncated Matrix Product States (MPS). |
Anupam Mitra ; Tameem Albash ; Philip Blocher ; Jun Takahashi ; Ivan Deutsch ; Akimasa Miyake ; Grant Biedermann; |
| 1539 | Efficient Tensor Network Simulation of IBM’s Eagle Kicked Ising Experiment Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: I will present an accurate and efficient classical simulation of a kicked Ising quantum system on the heavy-hexagon lattice. |
Joseph Tindall ; Miles Stoudenmire ; Dries Sels ; Matthew Fishman; |
| 1540 | Benchmarking Time Evolution Algorithms for Quantum Advantage Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: With the understanding that hardware coherence times are steadily improving, we report benchmarking results for a recently proposed tensor network algorithm that uses belief propagation as an approximate contraction heuristic. |
Jason Saroni ; Jacopo Gliozzi ; Thomas Iadecola ; Norm Tubman; |
| 1541 | Hybrid Quantum-Classical Simulation for Non-Perturbative Jet Production Dynamics at Scale with CUDA Quantum Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This work is performed on NERSC’s Perlmutter system leveraging the multi-node multi-GPU architecture using NVIDIA’s CUDA Quantum, which is a software development kit for quantum and integrated quantum-classical programming. |
Kazuki Ikeda ; Pooja Rao ; Adrien Florio ; David Frenklakh ; Dmitri Kharzeev ; Jin-Sung Kim ; Vladimir Korepin ; Alex McCaskey ; Shuzhe Shi ; Yu Kwangmin; |
| 1542 | False Vacuum Decay in Rydberg Atom Quantum Simulators: Classical Emulation Over The Parameter Space Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate false vacuum decay in Rydberg atom chains with the antiferromagnetic Rydberg Hamiltonian, using local detuning to achieve confinement and nucleation. |
Siva Darbha ; Katherine Klymko ; Daan Camps ; Jan Balewski ; Mark Hirsbrunner ; Yizhi Shen ; Roel Van Beeumen ; Milan Kornjaca ; Fangli Liu ; Pedro Lopes ; Shengtao Wang; |
| 1543 | Simulating Fermionic Scattering Using A Digital Quantum Computing Approach Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Specifically, we propose a method based on Givens rotation to prepare the initial state of the fermionic scattering process, which consists of two fermionic wave packets with opposite momenta. |
Yahui Chai ; Arianna Crippa ; Karl Jansen ; Stefan Kuehn ; Ivano Tavernelli ; Francesco Tacchino ; Vincent R Pascuzzi; |
| 1544 | Power and Limitations of Parameterized Quantum Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Overall, this talk aims to shed light on the power of PQCs and their potential advantages in near-term quantum applications. |
Xin Wang; |
| 1545 | Iterative Optimization of Hard Spin Glass Problems with High Frequency AC Drives (Part I) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Performance improvements of quantum algorithms such as quantum annealing, adiabatic quantum computing and the quantum approximate optimization algorithm over smart classical algorithms are often marginal, particularly when concerns such as the overhead of computing quantum expectation values for variational circuits, and the immense prefactor disadvantages quantum hardware exhibits compared to parallel silicon, are taken into account. In light of these challenges, we introduce a new quantum algorithm called IST-SAT (Iterative-Symphonic Tunneling-Boolean Satisfiability Problem) which circumvents computing gradients and parameter optimization. |
Jacob (Coby) Sagal ; Brandon Barton ; Sean Feeney ; George Grattan ; Pratik Patnaik ; Vadim Oganesyan ; Lincoln Carr ; Eliot Kapit; |
| 1546 | Iterative Optimization of Hard Spin Glass Problems with High Frequency AC Drives (Part II) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, we benchmark the IST-SAT algorithm using sets of hard MAX3-XORSAT instances, which are exponentially difficult for both exact and approximate optimization for all known classical and quantum methods. |
Brandon Barton ; Sean Feeney ; George Grattan ; Pratik Patnaik ; Jacob Sagal ; Vadim Oganesyan ; Lincoln Carr ; Eliot Kapit; |
| 1547 | Resource Analysis of Quantum Algorithms for Coarse-grained Protein Folding Models Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We calculate the minimum number of qubits, interactions, and two-qubit gates necessary to represent the energy of a specific folding. |
Hanna Linn ; Isak Brundin ; Laura García-Álvarez ; Göran Johansson; |
| 1548 | Variational Quantum Algorithm for Partial Singular Value Decomposition Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, applying such quantum algorithms for highly entangled states is challenging, demanding an exponentially large number of gate operations. Our study revisited this challenge, redefining VQA as an approximation problem for a specific quantum circuit. |
Shohei Miyakoshi ; Takanori Sugimoto ; Tomonori Shirakawa ; Seiji Yunoki ; Hiroshi Ueda; |
| 1549 | Reconfigurable Quantum Hutchinson with Real-Time Evolution Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In particular, we introduce a simple near-term algorithm designed to compute the trace of a wide class of operators, including functions of the target Hamiltonian. |
Yizhi Shen ; Michael Lindsey ; Katherine Klymko ; Eran Rabani ; Daan Camps ; Norm Tubman ; Roel Van Beeumen; |
| 1550 | Variational Secure Cloud Quantum Computing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we propose an efficient way to implement NISQ computing with guaranteed security for the client. |
Yuta Shingu ; Yuki Takeuchi ; Suguru Endo ; Shiro Kawabata ; Shohei Watabe ; Tetsuro Nikuni ; Hideaki Hakoshima ; Yuichiro Matsuzaki; |
| 1551 | On The Approximability of Random-hypergraph MAX-3-XORSAT Problems with Quantum Algorithms Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We qualitatively identify why traditional methods (e.g. high depth QAOA) are not reliably good approximation algorithms. We propose a new method, called spectral folding, that does not suffer from these issues, and study it analytically and numerically. |
Eliot Kapit ; Brandon Barton ; Sean Feeney ; George Grattan ; Pratik Patnaik ; Jacob (Coby) Sagal ; Lincoln Carr ; Vadim Oganesyan; |
| 1552 | Recursive Quantum Eigenvalue/Singular-value Transformation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose recursive QET or QSVT (r-QET or r-QSVT), in which we can execute complicated matrix functions by recursively organizing block-encoding by low-degree QET or QSVT. |
Kaoru Mizuta ; Keisuke Fujii; |
| 1553 | Efficient Convex Unitary Decompositions for Quantum Simulation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a hybrid quantum-classical approach to problems in quantum simulation, which we demonstrate for both standard Hamiltonian simulation and open quantum systems. |
Joseph Peetz ; Scott Smart ; Prineha Narang; |
| 1554 | Digital Quantum Simulations of The SSH Model on A Parameterized Quantum Circuit Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In the first case, we find that the ground-state energy converges exponentially fast with increasing circuit depth M. |
Qing Xie ; Seki Kazuhiro ; Tomonori Shirakawa ; Yunoki Seiji; |
| 1555 | Microwave Spectroscopy of Andreev Bound States in Topological Insulator-based Josephson Junctions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report investigation of low energy spectrum of in-gap excitation in TI/SC Josephson junctions using microwave spectroscopy. |
Mingi Kim ; Jian Liao ; Zhibo Ren ; Yong P. Chen ; Jukka Vayrynen ; Leonid Rokhinson; |
| 1556 | Signatures of Majorana States in The Current-Phase Relation of Lateral S-TI-S Josephson Junctions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe and present results from two experiments designed to measure the current-phase relation directly via phase-sensitive Josephson interferometry in two regimes. |
Jessica Montone ; Gilbert Arias ; Guang Yue ; Xiong Yao ; Deepti Jain ; Jisoo Moon ; Xiaoyu Yuan ; Seongshik Oh ; Dale Van Harlingen; |
| 1557 | Microwave Spectroscopy in Hybrid Semiconductor-based Josephson Junctions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study the ABSs of Al-InAs JJs by inductively coupling the JJ in a superconducting loop to a coplanar waveguide superconducting resonator. |
Bassel Heiba Elfeky ; Krishna Dindal ; Jaewoo Lee ; William Strickland ; Ido Levy ; Jacob Issokson ; Patrick Strohbeen ; Javad Shabani; |
| 1558 | Realizing Majorana Zero Modes Using Josephson Junction Arrays Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We design a 1-D array of Josephson junctions that features Majorana zero modes (MZM) at its edges. |
Parameshwar Pasnoori ; Ari Mizel ; Patrick Azaria; |
| 1559 | First Principles Assessment of ZnTe and CdSe As Tunnel Barriers for The InAs/Al Interface Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We assess the wide band gap semiconductors, ZnTe and CdSe, as candidate materials to mediate the coupling between Al and InAs. |
Malcolm Jardine ; Noa Marom ; Sergey Frolov ; Derek Dardzinski ; Chris Palmstrom ; Moira Hocevar; |
| 1560 | Exploring Mobility in ZnTe-Coated InAs Nanowires Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Our research explores how ZnTe shell coatings influence the mobility of InAs nanowires. |
Mykola Chernyashevskyy ; Danylo Mosiiets ; Sergey Frolov ; Susheng Tan ; Edith Bellet-Amalric ; Moira Hocevar; |
| 1561 | Qubits and Gate Operations in A Topologically Protected System of A Toroidal Flux Coupled to An Electron Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We study a model of quantized toroidal magnetic flux coupled to a charged particle through field-free interaction. |
Adel Mohamed Ali ; Alexey Belyanin; |
| 1562 | Multi-qubit Gates for Fibonacci Topological Qubits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We construct braiding patterns that approximate Toffoli and fan-out gates for Fibonacci anyons. |
Layla Hormozi; |
| 1563 | Symmetry Protected Topological Order As A Requirement for Measurement-based Quantum Gate Teleportation Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: All known resource states for measurement-based quantum teleportation in correlation space possess symmetry protected topological order, but is this a sufficient or even necessary condition? This work considers two families of one-dimensional qubit states to answer this question in the negative. |
David Feder ; Zhuohao Liu ; Emma Johnson; |
| 1564 | Torus Algebra and Logical Operators at Low Energy Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we investigate the torus algebra, originally introduced by Ma etc. [Phys. |
Ying Chan ; Tian Lan; |
| 1565 | Exotic Gapped Boundaries of Fracton Phases in The Checkerboard Model Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we investigate possible boundaries for the Checkerboard model, a paradigmatic fracton model on the 3D cubic lattice. |
Yuan Xue ; Matteo Ippoliti; |
| 1566 | Optimized Preparation of Magic State for Parafermionic Qudits Via Non-adiabatic Braiding Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We suggest an alternative protocol, using non-adiabatic effects to construct the magic gate for qudits realized by parafermions while preserving a fixed number of zero modes and thus avoiding dynamical phase accumulation. |
Evgenii Zheltonozhskii ; Barak Katzir ; Noam Schiller ; Erez Berg ; Ady Stern ; Yuval Oreg ; Netanel Lindner; |
| 1567 | Universal Measurement-based Quantum Computation in A One-dimensional Architecture Enabled By Dual-unitary Circuits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We use dual-unitary circuits, which are unitary even when read ‘sideways’, as the basis of a new framework for measurement-based quantum computation (MBQC). |
David Stephen ; Wen Wei Ho ; Tzu-Chieh Wei ; Robert Raussendorf ; Ruben Verresen; |
| 1568 | Pointer States and Quantum Darwinism with 2-body Interactions Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: To this end, we categorize all models with 2-body interactions, and we show that only those with separable interaction of system and environment can support a pointer basis. |
Sebastian Deffner ; Paul Duruisseau ; Akram Touil; |
| 1569 | Emergence of Consensus About Objective Classical Reality in A Quantum Universe Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In particular, we propose a new information-theoretic measure of consensus, and show that it is a well-defined measure of agreement between observers in branching states of arbitrary dimension. |
Akram Touil ; Bin Yan ; Davide Girolami ; Sebastian Deffner ; Wojciech Zurek; |
| 1570 | Interpolating Between The Gauge and Schrödinger Pictures of Quantum Dynamics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In order to achieve this explicit locality, the gauge picture utilizes (1) a distinct wavefunction associated with each patch of space, and (2) time-dependent unitary connections to relate the Hilbert spaces associated with nearby patches. In this work, we show that by adding an additional spatially-local term to the gauge picture equations of motion, we can effectively interpolate between the gauge and Schrödinger pictures, such that when this additional term has a large coefficient, all of the gauge picture wavefunctions approach the Schrödginer picture wavefunction (and the connections approach the identity). |
Sayak Guha Roy ; Kevin Slagle; |
| 1571 | Oral: Can Wilkie’s Theorem Serve As A Foundation for Computable Physics? Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: There exists strong philosophical arguments for why physics built upon continuous real-valued (or complex-valued) fields is unsatisfactory[1], but I argue that the negative result to Tsirelson’s problem[2] implied by the seminal result $MIP^*=RE$[3] indicates that the discussion is not a philosophical one, but has physical implications. |
John Novak; |
| 1572 | Quantum Mereology, Reading The Structure of The Universe from Its Spectrum Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a procedure to do quantum mereology i.e to identify a hierarchical decomposition into subsystems from a spectrum. |
Nicolas Loizeau ; Dries Sels ; Flaviano Morone; |
| 1573 | A Quantum Rubik’s Cube and Unexpected Qudits Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We propose a simple quantum game that is a variation of a Rubik’s cube known as a permutation puzzle. |
Noah Lordi ; Akira Kyle ; Maedee Trank-Greene ; Joshua Combes; |
| 1574 | Spontaneously Interacting Qubits from Gauss-Bonnet Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We introduce tools for this analysis that will allow for straightfoward, although numerically intensive, extension to other loss functionals and higher-dimension systems. |
Sean Prudhoe ; Sarah Shandera ; Rishabh Kumar; |
| 1575 | Signature of Criticality in Angular Momentum Resolved Entanglement of Scalar Fields in $d>1$. ArXiv.2308.01964 (2023) Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The scaling of entanglement entropy with subsystem size fails to distinguish between gapped and gapless ground state of a scalar field theory in $d>1$ dimensions. We show that the scaling of angular momentum resolved entanglement entropy $S_ell$ with the subsystem radius $R$ can clearly distinguish between these states. |
Mrinal Sarkar ; Saranyo Moitra ; Rajdeep Sensarma; |
| 1576 | Geometry of Degenerate Quantum States Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We describe all (functionally-)independent invariants associated with a collection of $m$-dimensional subspaces of a Hilbert space $mathbb{C}^n$iffalse of dimension $n$fi. |
Aleksandr Avdoshkin; |
| 1577 | Quantum Geometric Tensor of Mixed States Based on Uhlmann’s Approach Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Importantly, the QGT of mixed states may not approach the QGT of the corresponding pure states due to their different underlying fibrations. We present examples showing such possibilities and discuss the implications. |
Chih-Chun Chien ; Hao Guo ; Xu-Yang Hou ; Zheng Zhou ; Xin Wang; |
| 1578 | Quantum to Classical Transition – A Path Integral Approach Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present a path-integral formulation of quantum-to-classical transition for systems undergoing continuous measurements. |
Harsh Arora ; Bishal Das ; Baladitya Suri ; Vaibhav Madhok; |
| 1579 | Theory of Wave Propagation of Particle Based on The Frameworks of Newtonian Mechanics and Classic Quantum Mechanics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this paper, based on the paper of Schrödinger, “ An Undulatory Theory of the Mechanics of Atoms and Molecules”, and the theory of de Broglie wave-particle duality, authors analyze the motion of a material point both in the framework of Newtonian Mechanics and in the framework of Classic Quantum Mechanics. |
Gong Song ; Guan Long Song; |