PRX Quantum - March 2023

PRX Quantum View Email Online   Volume 4, Issue 1 January - March 2023   View Issue   Advertisement PRX Life is Open for Submissions! PRX Life, the first multidisciplinary journal covering all aspects of biological organization, is now open for submissions! Take advantage of Gold Open Access for your publication with zero article publication charges until 2024. Submit your research today! Don't forget to sign up to receive alerts and follow the journal on Twitter.     Advertisement APS Prizes and Awards - Nominations Now Open APS is seeking nominations for all APS Honors, recognizing outstanding achievements in physics. Nominate a colleague for APS Fellowship, Prizes, and Awards. They are open to all members of the scientific community. Please consider nominating deserving colleagues. Learn more.     Not an APS member? Join today to start connecting with a community of more than 50,000 physicists.   Tutorial Quantum Electrodynamics of Intense Laser-Matter Interactions: A Tool for Quantum State Engineering Philipp Stammer, Javier Rivera-Dean, Andrew Maxwell, Theocharis Lamprou, Andrés Ordóñez, Marcelo F. Ciappina, Paraskevas Tzallas, and Maciej Lewenstein PRX Quantum 4, 010201 (2023) – Published 20 January 2023 A pedagogical and comprehensive introduction to the full quantum description of intense laser-matter interactions and its potential for quantum state engineering is presented.     Tutorial Photon-Emission-Correlation Spectroscopy as an Analytical Tool for Solid-State Quantum Defects Rebecca E.K. Fishman, Raj N. Patel, David A. Hopper, Tzu-Yung Huang, and Lee C. Bassett PRX Quantum 4, 010202 (2023) – Published 6 March 2023 Techniques used to study quantum emitters are pedagogically introduced, highlighting nuances and best practices on assessing their suitability for quantum information science.     Scalable Measures of Magic Resource for Quantum Computers Tobias Haug and M.S. Kim PRX Quantum 4, 010301 (2023) – Published 3 January 2023 The newly introduced concept of Bell magic allows quantifying the quantum computing resource necessary for advantage in an efficient and practical way.     Probing Critical Behavior of Long-Range Transverse-Field Ising Model through Quantum Kibble-Zurek Mechanism B.-W. Li, Y.-K. Wu, Q.-X. Mei, R. Yao, W.-Q. Lian, M.-L. Cai, Y. Wang, B.-X. Qi, L. Yao, L. He, Z.-C. Zhou, and L.-M. Duan PRX Quantum 4, 010302 (2023) – Published 5 January 2023 A trapped-ion simulator shows quantitative agreement when probing critical behavior around a quantum phase transition.     Shadow Distillation: Quantum Error Mitigation with Classical Shadows for Near-Term Quantum Processors Alireza Seif, Ze-Pei Cian, Sisi Zhou, Senrui Chen, and Liang Jiang PRX Quantum 4, 010303 (2023) – Published 9 January 2023 A method for mitigating errors in near-term quantum computers utilizing randomized measurements explores the trade-off between the number of measurement settings and the number of repetitions of each measurement.     Topological Defect Network Representations of Fracton Stabilizer Codes Zijian Song, Arpit Dua, Wilbur Shirley, and Dominic J. Williamson PRX Quantum 4, 010304 (2023) – Published 11 January 2023 A systematic method for constructing topological defect networks for a wide range of lattice Hamiltonians is presented.     Predicting Gibbs-State Expectation Values with Pure Thermal Shadows Luuk Coopmans, Yuta Kikuchi, and Marcello Benedetti PRX Quantum 4, 010305 (2023) – Published 13 January 2023 Instead of directly preparing Gibbs states, a more efficient quantum algorithm to estimate them is proposed: generate thermal pure quantum states and use classical shadow tomography.     Quantum Nonreciprocal Interactions via Dissipative Gauge Symmetry Yu-Xin Wang, Chen Wang, and Aashish A. Clerk PRX Quantum 4, 010306 (2023) – Published 17 January 2023 A novel approach, based on local gauge symmetries of quantum master equations, is developed to produce nonreciprocal interactions, something which previously was only possible with cascaded systems.     Estimating the Bias of CX Gates via Character Randomized Benchmarking Jahan Claes and Shruti Puri PRX Quantum 4, 010307 (2023) – Published 18 January 2023 A novel technique, called bias randomized benchmarking, is developed to assess the bias in controlled-not quantum gates, a crucial step for advancing quantum error correction in biased-noise systems.     Manipulation and Certification of High-Dimensional Entanglement through a Scattering Medium Baptiste Courme, Patrick Cameron, Daniele Faccio, Sylvain Gigan, and Hugo Defienne PRX Quantum 4, 010308 (2023) – Published 19 January 2023 A wavefront shaping approach enables protection of high-dimensional entangled photons traversing a scattering medium, a situation that typically hinders the building of practical quantum microscopy and quantum key distribution.     Limitations of Variational Quantum Algorithms: A Quantum Optimal Transport Approach Giacomo De Palma, Milad Marvian, Cambyse Rouzé, and Daniel Stilck França PRX Quantum 4, 010309 (2023) – Published 23 January 2023 Using newly developed quantum entropic and concentration inequalities, two complementary sets of results are derived that provide a better quantitative understanding of the limitations of variational quantum algorithms.     Performance of Planar Floquet Codes with Majorana-Based Qubits Adam Paetznick, Christina Knapp, Nicolas Delfosse, Bela Bauer, Jeongwan Haah, Matthew B. Hastings, and Marcus P. da Silva PRX Quantum 4, 010310 (2023) – Published 25 January 2023 A clever method for implementing Floquet codes on topological platforms can lead to an error-correction performance significantly superior to that achieved with the ubiquitous surface code.     Emergent Quantum State Designs from Individual Many-Body Wave Functions Jordan S. Cotler, Daniel K. Mark, Hsin-Yuan Huang, Felipe Hernández, Joonhee Choi, Adam L. Shaw, Manuel Endres, and Soonwon Choi PRX Quantum 4, 010311 (2023) – Published 27 January 2023 A new perspective on the emergence of statistical behavior in chaotic quantum many-body systems is presented, establishing projected ensembles as a relevant tool for the characterization of information-theoretic properties.     Counterdiabatic Optimized Local Driving Ieva Čepaitė, Anatoli Polkovnikov, Andrew J. Daley, and Callum W. Duncan PRX Quantum 4, 010312 (2023) – Published 30 January 2023 A hybrid approach to achieving coherent control, dubbed COLD, promises substantial improvement when applied to annealing protocols, state preparation schemes, entanglement generation, and population transfer on a lattice.     Advantages and Limitations of Quantum Routing Aniruddha Bapat, Andrew M. Childs, Alexey V. Gorshkov, and Eddie Schoute PRX Quantum 4, 010313 (2023) – Published 1 February 2023 A detailed investigation considers if genuinely quantum operations can accelerate routing—the task of permuting qubits within a quantum computing architecture.     Long-Distance Transmon Coupler with cz-Gate Fidelity above 99.8% Fabian Marxer et al. PRX Quantum 4, 010314 (2023) – Published 6 February 2023 The lack of physical space on superconducting quantum devices is experimentally tackled by utilizing an extended floating coupler design, enabling large physical distances between qubits.     Featured in Physics Editors' Suggestion Searches for Massive Neutrinos with Mechanical Quantum Sensors Daniel Carney, Kyle G. Leach, and David C. Moore PRX Quantum 4, 010315 (2023) – Published 8 February 2023 Searching for heavy sterile neutrinos in the keV–MeV mass range is possible with a nanometer-scale, optically levitated quantum sensor.     Quantum Optimization with Arbitrary Connectivity Using Rydberg Atom Arrays Minh-Thi Nguyen, Jin-Guo Liu, Jonathan Wurtz, Mikhail D. Lukin, Sheng-Tao Wang, and Hannes Pichler PRX Quantum 4, 010316 (2023) – Published 14 February 2023 A new encoding scheme for Rydberg atom arrays is introduced, opening their use for solving a large class of combinatorial optimization problems.     Density Matrix Renormalization Group with Tensor Processing Units Martin Ganahl, Jackson Beall, Markus Hauru, Adam G.M. Lewis, Tomasz Wojno, Jae Hyeon Yoo, Yijian Zou, and Guifre Vidal PRX Quantum 4, 010317 (2023) – Published 16 February 2023 A novel architecture is used to boost the density-matrix renormalization group, an important and widely used algorithm, impressively pushing the boundary of the current state of the art by at least an order of magnitude in complexity.     Entanglement Barrier and its Symmetry Resolution: Theory and Experimental Observation Aniket Rath, Vittorio Vitale, Sara Murciano, Matteo Votto, Jérôme Dubail, Richard Kueng, Cyril Branciard, Pasquale Calabrese, and Benoît Vermersch PRX Quantum 4, 010318 (2023) – Published 21 February 2023 An efficient method to extract higher-order density-matrix functionals and access operator entanglement is introduced and tested on experimental data, improving the characterization of nonequilibrium dynamics of many-body quantum systems.     Featured in Physics Editors' Suggestion Single-Shot Readout of Multiple Donor Electron Spins with a Gate-Based Sensor M.R. Hogg, P. Pakkiam, S.K. Gorman, A.V. Timofeev, Y. Chung, G.K. Gulati, M.G. House, and M.Y. Simmons PRX Quantum 4, 010319 (2023) – Published 23 February 2023 A new atomic-scale sensor capable of reading out multiple qubits is engineered, providing a pathway for increasing on-chip qubit density.     Quantum Gravity in the Lab. I. Teleportation by Size and Traversable Wormholes Adam R. Brown, Hrant Gharibyan, Stefan Leichenauer, Henry W. Lin, Sepehr Nezami, Grant Salton, Leonard Susskind, Brian Swingle, and Michael Walter PRX Quantum 4, 010320 (2023) – Published 27 February 2023 A deep dive on how the language of the holographic principle can simplify our understanding of quantum information processes (and vice versa), leading to a path toward exploring holographic theories of quantum gravity in tabletop experiments.     Quantum Gravity in the Lab. II. Teleportation by Size and Traversable Wormholes Sepehr Nezami, Henry W. Lin, Adam R. Brown, Hrant Gharibyan, Stefan Leichenauer, Grant Salton, Leonard Susskind, Brian Swingle, and Michael Walter PRX Quantum 4, 010321 (2023) – Published 27 February 2023 A comprehensive investigation on how size winding of quantum operators connects to bulk gravitational physics and traversable wormholes is presented, together with a proposal on possible realizations in near-term quantum devices.     Featured in Physics Magnetic Field-Resilient Quantum-Limited Parametric Amplifier Mingrui Xu, Risheng Cheng, Yufeng Wu, Gangqiang Liu, and Hong X. Tang PRX Quantum 4, 010322 (2023) – Published 28 February 2023 A low-noise parametric amplifier based on kinetic inductance, suitable for integration with quantum systems in magnetic fields, is experimentally demonstrated     Coherent Control of a Nuclear Spin via Interactions with a Rare-Earth Ion in the Solid State Mehmet T. Uysal, Mouktik Raha, Songtao Chen, Christopher M. Phenicie, Salim Ourari, Mengen Wang, Chris G. Van de Walle, Viatcheslav V. Dobrovitski, and Jeff D. Thompson PRX Quantum 4, 010323 (2023) – Published 1 March 2023 Coherent control between a nuclear spin and the electron spin of a rare-earth erbium ion is achieved, opening a path toward telecom-wavelength long-distance quantum repeaters.     Quantum Simulation of Dissipative Collective Effects on Noisy Quantum Computers Marco Cattaneo, Matteo A.C. Rossi, Guillermo García-Pérez, Roberta Zambrini, and Sabrina Maniscalco PRX Quantum 4, 010324 (2023) – Published 8 March 2023 Subradiance and superradiance are experimentally simulated on quantum processors, providing a detailed experimental and theoretical analysis of the noise properties of current devices and how they impact the quantum simulation accuracy.     Compressive Gate Set Tomography Raphael Brieger, Ingo Roth, and Martin Kliesch PRX Quantum 4, 010325 (2023) – Published 10 March 2023 Faster and more flexible gate set tomography via low-rank manifold optimization serves as a practical characterization and quantum software calibration tool.     Equivalence between Fermion-to-Qubit Mappings in two Spatial Dimensions Yu-An Chen (陳昱安) and Yijia Xu (许逸葭) PRX Quantum 4, 010326 (2023) – Published 13 March 2023 An equivalence is proved between various fermion-to-qubit mappings and the exact bosonization method that utilizes the emergent fermions in the Z2 topological order.     Suppressing Quantum Circuit Errors Due to System Variability Paul D. Nation and Matthew Treinish PRX Quantum 4, 010327 (2023) – Published 15 March 2023 Quantum circuit optimization software is presented that eases the effect of device variability, increasing fidelities by as much as 40% on near-term quantum processors.     Exploiting Symmetry in Variational Quantum Machine Learning Johannes Jakob Meyer, Marian Mularski, Elies Gil-Fuster, Antonio Anna Mele, Francesco Arzani, Alissa Wilms, and Jens Eisert PRX Quantum 4, 010328 (2023) – Published 17 March 2023 A blueprint for exploiting symmetries in the construction of variational quantum learning models that can result in improved generalization performance is developed and demonstrated on practical problems.     Complete Readout of Two-Electron Spin States in a Double Quantum Dot Martin Nurizzo, Baptiste Jadot, Pierre-André Mortemousque, Vivien Thiney, Emmanuel Chanrion, David Niegemann, Matthieu Dartiailh, Arne Ludwig, Andreas D. Wieck, Christopher Bäuerle, Matias Urdampilleta, and Tristan Meunier PRX Quantum 4, 010329 (2023) – Published 20 March 2023 A new readout scheme for electron spin qubits is introduced, paving the way for a more scalable spin-qubit platform.     100-Gbit/s Integrated Quantum Random Number Generator Based on Vacuum Fluctuations Cédric Bruynsteen, Tobias Gehring, Cosmo Lupo, Johan Bauwelinck, and Xin Yin PRX Quantum 4, 010330 (2023) – Published 22 March 2023 An ultrafast secure quantum random-number generator in a chip-scale platform is demonstrated.     Entanglement Domain Walls in Monitored Quantum Circuits and the Directed Polymer in a Random Environment Yaodong Li, Sagar Vijay, and Matthew P.A. Fisher PRX Quantum 4, 010331 (2023) – Published 24 March 2023 The properties of the volume-law-entangled phase of weakly monitored quantum circuits are related to the classical statistical mechanics of a directed polymer in a random environment, shedding light on the stability of volume-law entanglement in the presence of repeated projective measurements.     Landauer Versus Nernst: What is the True Cost of Cooling a Quantum System? Philip Taranto, Faraj Bakhshinezhad, Andreas Bluhm, Ralph Silva, Nicolai Friis, Maximilian P.E. Lock, Giuseppe Vitagliano, Felix C. Binder, Tiago Debarba, Emanuel Schwarzhans, Fabien Clivaz, and Marcus Huber PRX Quantum 4, 010332 (2023) – Published 27 March 2023 A novel framework identifies the necessary thermodynamic resources for producing pure quantum states, connecting the third law of thermodynamics with Landauer's principle and highlighting the role of information and complexity in thermodynamics.     Quantum Nondemolition Measurements with Optical Parametric Amplifiers for Ultrafast Universal Quantum Information Processing Ryotatsu Yanagimoto, Rajveer Nehra, Ryan Hamerly, Edwin Ng, Alireza Marandi, and Hideo Mabuchi PRX Quantum 4, 010333 (2023) – Published 29 March 2023 A quantum nondemolition measurement with optical parametric amplifiers opens a path for novel non-Gaussian quantum engineering.     Editors' Suggestion Engineering Dynamically Decoupled Quantum Simulations with Trapped Ions W. Morong, K.S. Collins, A. De, E. Stavropoulos, T. You, and C. Monroe PRX Quantum 4, 010334 (2023) – Published 31 March 2023 A new method based on dynamical decoupling is shown to significantly enhance the coherence of quantum simulations.       American Physical Society: 1 Physics Ellipse, College Park, MD 20740 ©2023 American Physical Society | All rights reserved   You are receiving this email because you are subscribed to Table of Content alerts. If you no longer wish to receive these emails, please update your preferences.