Browse Issues:

Chiral Photocurrent in Parity-Violating Magnet and Enhanced Response in Topological Antiferromagnet

Hikaru Watanabe and Youichi Yanase

Phys. Rev. X 11, 011001 (2021) - Published 4 January, 2021

A new classification of photocurrent responses in light of symmetry violations in the presence of magnetic order unveils two new types of photocurrent that can be readily tuned and enhanced by topological electronic structure in solids.

Selective Orbital Imaging of Excited States with X-Ray Spectroscopy: The Example of α-MnS

A. Amorese, B. Leedahl, M. Sundermann, H. Gretarsson, Z. Hu, H.-J. Lin, C. T. Chen, M. Schmidt, H. Borrmann, Yu. Grin, A. Severing, M. W. Haverkort, and L. H. Tjeng

Phys. Rev. X 11, 011002 (2021) - Published 5 January, 2021

A novel experimental method provides direct images of excited states in a transition-metal compound without the need for complex calculations, a major step in understanding the rich physics of these materials.

Odd-Even Layer-Number Effect and Layer-Dependent Magnetic Phase Diagrams in MnBi2Te4

Shiqi Yang, Xiaolong Xu, Yaozheng Zhu, Ruirui Niu, Chunqiang Xu, Yuxuan Peng, Xing Cheng, Xionghui Jia, Yuan Huang, Xiaofeng Xu, Jianming Lu, and Yu Ye

Phys. Rev. X 11, 011003 (2021) - Published 6 January, 2021

Experiments reveal a host of unusual magnetic behaviors in the recently discovered layered magnetic topological insulator MnBi2Te4, paving the way for further study of its quantum properties.

Stochasticity Triggers Activation of the S-phase Checkpoint Pathway in Budding Yeast

Peijie Zhou, Xin Gao, Xiaoli Li, Linxi Li, Caoyuan Niu, Qi Ouyang, Huiqiang Lou, Tiejun Li, and Fangting Li

Phys. Rev. X 11, 011004 (2021) - Published 7 January, 2021

Experiments on single cells of different budding yeast mutation strains reveal details about activation of a key genetic regulation mechanism, underlining the important role of noise in cell signaling pathways.

Superluminal Motion-Assisted Four-Dimensional Light-in-Flight Imaging

Kazuhiro Morimoto, Ming-Lo Wu, Andrei Ardelean, and Edoardo Charbon

Phys. Rev. X 11, 011005 (2021) - Published 8 January, 2021

Using a megapixel high-speed camera, researchers reconstructed the trajectory of a laser pulse in time and 3D space.

Electronically Driven 1D Cooperative Diffusion in a Simple Cubic Crystal

Yong Wang, Junjie Wang, Andreas Hermann, Cong Liu, Hao Gao, Erio Tosatti, Hui-Tian Wang, Dingyu Xing, and Jian Sun

Phys. Rev. X 11, 011006 (2021) - Published 11 January, 2021

Simulations show that thanks to a clear electronic mechanism, even the simplest crystal structure—the simple cubic phase of calcium—exhibits “chain melting,” in which 1D chains of atoms within a solid begin to move in concert as temperature increases.

Evolution of Charge and Pair Density Modulations in Overdoped Bi2Sr2CuO6+δ

Xintong Li, Changwei Zou, Ying Ding, Hongtao Yan, Shusen Ye, Haiwei Li, Zhenqi Hao, Lin Zhao, Xingjiang Zhou, and Yayu Wang

Phys. Rev. X 11, 011007 (2021) - Published 12 January, 2021

Checkerboard charge patterns in a cuprate give way to glassy “charge puddles” as doping density increases, a finding that may help connect the emergence of charge orders with high-temperature superconductivity of these materials.

Continuous Protection of a Collective State from Inhomogeneous Dephasing

R. Finkelstein, O. Lahad, I. Cohen, O. Davidson, S. Kiriati, E. Poem, and O. Firstenberg

Phys. Rev. X 11, 011008 (2021) - Published 13 January, 2021

A new technique for continuously mitigating decoherence among the various parts of a quantum system offers a novel low-noise approach to maintaining qubit stability.

Fingerprints of High-Dimensional Coexistence in Complex Ecosystems

Matthieu Barbier, Claire de Mazancourt, Michel Loreau, and Guy Bunin

Phys. Rev. X 11, 011009 (2021) - Published 14 January, 2021

If many mechanisms ensure coexistence of species in an ecosystem, characteristic statistical patterns in interactions between species’ populations should arise, allowing for tests of theories about biodiversity persistence.

Universal Fast-Flux Control of a Coherent, Low-Frequency Qubit

Helin Zhang, Srivatsan Chakram, Tanay Roy, Nathan Earnest, Yao Lu, Ziwen Huang, D. K. Weiss, Jens Koch, and David I. Schuster

Phys. Rev. X 11, 011010 (2021) - Published 15 January, 2021

A set of protocols for initializing, controlling, and reading out a qubit design known as “heavy fluxonium,” operated in a previously unexplored regime, provides excellent coherence times and fast high-fidelity gates.

Glassy Dynamics in a Disordered Heisenberg Quantum Spin System

A. Signoles, T. Franz, R. Ferracini Alves, M. Gärttner, S. Whitlock, G. Zürn, and M. Weidemüller

Phys. Rev. X 11, 011011 (2021) - Published 19 January, 2021

Experiments reveal relaxation behavior in an isolated quantum system similar to that observed in classical glasses, hinting at an overarching framework for slow relaxation dynamics.

Emergence of Polarized Ideological Opinions in Multidimensional Topic Spaces

Fabian Baumann, Philipp Lorenz-Spreen, Igor M. Sokolov, and Michele Starnini

Phys. Rev. X 11, 011012 (2021) - Published 20 January, 2021

By embedding opinions in a nonorthogonal topic space, a new model shows that a reinforcement mechanism driven by homophilic social interactions reproduces extreme and correlated opinion states found in surveys.

Heart of Entanglement: Chiral, Nematic, and Incommensurate Phases in the Kitaev-Gamma Ladder in a Field

Erik S. Sørensen, Andrei Catuneanu, Jacob S. Gordon, and Hae-Young Kee

Phys. Rev. X 11, 011013 (2021) - Published 21 January, 2021

A novel analysis of a leading model of quantum spin liquids reveals an incredibly rich phase diagram with 15 distinct phases, a finding that will guide searches for spin liquids in 2D honeycomb materials.

Correlation-Induced Insulating Topological Phases at Charge Neutrality in Twisted Bilayer Graphene

Yuan Da Liao, Jian Kang, Clara N. Breiø, Xiao Yan Xu, Han-Qing Wu, Brian M. Andersen, Rafael M. Fernandes, and Zi Yang Meng

Phys. Rev. X 11, 011014 (2021) - Published 22 January, 2021

Quantum Monte Carlo simulations of so-called “magic angle” twisted bilayer graphene reveal three novel insulating phases that may help elucidate the origin of unusual electronic behaviors in this material.

Quantum Electrodynamics in a Topological Waveguide

Eunjong Kim, Xueyue Zhang, Vinicius S. Ferreira, Jash Banker, Joseph K. Iverson, Alp Sipahigil, Miguel Bello, Alejandro González-Tudela, Mohammad Mirhosseini, and Oskar Painter

Phys. Rev. X 11, 011015 (2021) - Published 25 January, 2021

A metamaterial waveguide with embedded qubits offers a new platform for probing and controlling topological phenomena.

Acoustic Realization of a Four-Dimensional Higher-Order Chern Insulator and Boundary-Modes Engineering

Ze-Guo Chen, Weiwei Zhu, Yang Tan, Licheng Wang, and Guancong Ma

Phys. Rev. X 11, 011016 (2021) - Published 26 January, 2021

A new type of 4D higher-order topological system demonstrated in an acoustic crystal offers a powerful and novel approach to wave-steering applications.

Evidence for Dominant Phonon-Electron Scattering in Weyl Semimetal WP2

Gavin B. Osterhoudt, Yaxian Wang, Christina A. C. Garcia, Vincent M. Plisson, Johannes Gooth, Claudia Felser, Prineha Narang, and Kenneth S. Burch

Phys. Rev. X 11, 011017 (2021) - Published 27 January, 2021

Unusual interactions occur between phonons and electrons in the topological semimetal tungsten diphosphide, a finding that could explain some of the material’s strange properties.

Polariton Laser in the Bardeen-Cooper-Schrieffer Regime

Jiaqi Hu, Zhaorong Wang, Seonghoon Kim, Hui Deng, Sebastian Brodbeck, Christian Schneider, Sven Höfling, Nai H. Kwong, and Rolf Binder

Phys. Rev. X 11, 011018 (2021) - Published 28 January, 2021

Experiments show signatures of a long-sought-after condensed quantum phase—the so-called Bardeen-Cooper-Schrieffer state—in a semiconductor microcavity, laying the foundation for future efficient semiconductor lasers.

Trapping Electrons in a Room-Temperature Microwave Paul Trap

Clemens Matthiesen, Qian Yu, Jinen Guo, Alberto M. Alonso, and Hartmut Häffner

Phys. Rev. X 11, 011019 (2021) - Published 29 January, 2021

Long-time trapping of a single electron could allow the particle to be used as an efficient quantum bit.

Theory of Trotter Error with Commutator Scaling

Andrew M. Childs, Yuan Su, Minh C. Tran, Nathan Wiebe, and Shuchen Zhu

Phys. Rev. X 11, 011020 (2021) - Published 1 February, 2021

Product formulas offer a powerful, simple approach to quantum simulation. A new theory quantifying their errors puts these algorithms on a rigorous foundation, showcasing their superiority over other methods.

Bond Directional Anapole Order in a Spin-Orbit Coupled Mott Insulator Sr2(Ir1xRhx)O4

H. Murayama, K. Ishida, R. Kurihara, T. Ono, Y. Sato, Y. Kasahara, H. Watanabe, Y. Yanase, G. Cao, Y. Mizukami, T. Shibauchi, Y. Matsuda, and S. Kasahara

Phys. Rev. X 11, 011021 (2021) - Published 2 February, 2021

Evidence of an exotic intermediate state—an anapole state—between the liquid and solid phases of electrons in a transition-metal oxide provides the first in-depth look at this long-sought, mysterious phase.

Correlations in Perturbed Dual-Unitary Circuits: Efficient Path-Integral Formula

Pavel Kos, Bruno Bertini, and Tomaž Prosen

Phys. Rev. X 11, 011022 (2021) - Published 3 February, 2021

Dual-unitary quantum circuits are a class of many-body models that allow for direct computation of useful diagnostics. A new study shows that important features of these models are stable under perturbations.

Fault-Tolerant Gates on Hypergraph Product Codes

Anirudh Krishna and David Poulin

Phys. Rev. X 11, 011023 (2021) - Published 4 February, 2021

One class of quantum error-correcting codes—hypergraph product codes—may offer fault tolerance with low hardware overhead. A new proposal shows how to perform universal quantum gates with these codes.

Emergent Magnetic Phases in Pressure-Tuned van der Waals Antiferromagnet FePS3

Matthew J. Coak, David M. Jarvis, Hayrullo Hamidov, Andrew R. Wildes, Joseph A. M. Paddison, Cheng Liu, Charles R. S. Haines, Ngoc T. Dang, Sergey E. Kichanov, Boris N. Savenko, Sungmin Lee, Marie Kratochvílová, Stefan Klotz, Thomas C. Hansen, Denis P. Kozlenko, Je-Geun Park, and Siddharth S. Saxena

Phys. Rev. X 11, 011024 (2021) - Published 5 February, 2021

High-pressure neutron studies of so-called magnetic graphene unveil exotic new states and behaviors as the material transitions from an insulator to a metal when compressed.

Friction on Ice: How Temperature, Pressure, and Speed Control the Slipperiness of Ice

Rinse W. Liefferink, Feng-Chun Hsia, Bart Weber, and Daniel Bonn

Phys. Rev. X 11, 011025 (2021) - Published 8 February, 2021

A new approach for studying friction on ice helps explain why the ease of sliding depends strongly on temperature, contact pressure, and speed.

Maximum Refractive Index of an Atomic Medium

Francesco Andreoli, Michael J. Gullans, Alexander A. High, Antoine Browaeys, and Darrick E. Chang

Phys. Rev. X 11, 011026 (2021) - Published 9 February, 2021

A new theory explains the lack of variation in the refractive indices of atomic gases.

High-Fidelity Measurement of a Superconducting Qubit Using an On-Chip Microwave Photon Counter

A. Opremcak, C. H. Liu, C. Wilen, K. Okubo, B. G. Christensen, D. Sank, T. C. White, A. Vainsencher, M. Giustina, A. Megrant, B. Burkett, B. L. T. Plourde, and R. McDermott

Phys. Rev. X 11, 011027 (2021) - Published 10 February, 2021

Fast, high-fidelity measurement of a superconducting qubit with a microwave photon counter offers a strong foundation for error correction in future, robust, large-scale quantum computers.

Tight Bounds on the Simultaneous Estimation of Incompatible Parameters

Jasminder S. Sidhu, Yingkai Ouyang, Earl T. Campbell, and Pieter Kok

Phys. Rev. X 11, 011028 (2021) - Published 11 February, 2021

New analysis shows how to calculate the fundamental precision bounds of a quantum sensor that measures two signals simultaneously, solving a difficult problem in quantum estimation theory.

High Temporal and Spectral Resolution of Stimulated X-Ray Raman Signals with Stochastic Free-Electron-Laser Pulses

Stefano M. Cavaletto, Daniel Keefer, and Shaul Mukamel

Phys. Rev. X 11, 011029 (2021) - Published 12 February, 2021

Temporal and spectral resolution of x-ray spectroscopy can be improved by exploiting correlations of existing stochastic x-ray fields, allowing for new investigations of electron and nuclear dynamics in molecules.

Entanglement Phase Transitions in Measurement-Only Dynamics

Matteo Ippoliti, Michael J. Gullans, Sarang Gopalakrishnan, David A. Huse, and Vedika Khemani

Phys. Rev. X 11, 011030 (2021) - Published 15 February, 2021

Measurements of a quantum system can support distinct entanglement phases and transitions, a counterintuitive result with implications for creating robust, fault-tolerant quantum information devices.

Benchmark for Ab Initio Prediction of Magnetic Structures Based on Cluster-Multipole Theory

M.-T. Huebsch, T. Nomoto, M.-T. Suzuki, and R. Arita

Phys. Rev. X 11, 011031 (2021) - Published 16 February, 2021

State-of-the-art many-body simulations can predict the magnetic ground state of over 100 materials from first principles, pushing the exploration and design of magnetic materials to a new era.

Hardware-Encoding Grid States in a Nonreciprocal Superconducting Circuit

Martin Rymarz, Stefano Bosco, Alessandro Ciani, and David P. DiVincenzo

Phys. Rev. X 11, 011032 (2021) - Published 17 February, 2021

A newly proposed superconducting circuit architecture employs a synthetic magnetic field to create a qubit that is intrinsically protected from noise.

Cell and Nucleus Shape as an Indicator of Tissue Fluidity in Carcinoma

Steffen Grosser, Jürgen Lippoldt, Linda Oswald, Matthias Merkel, Daniel M. Sussman, Frédéric Renner, Pablo Gottheil, Erik W. Morawetz, Thomas Fuhs, Xiaofan Xie, Steve Pawlizak, Anatol W. Fritsch, Benjamin Wolf, Lars-Christian Horn, Susanne Briest, Bahriye Aktas, M. Lisa Manning, and Josef A. Käs

Phys. Rev. X 11, 011033 (2021) - Published 17 February, 2021

In tightly packed tissues, a cancer cell’s motility is linked to the shape of the cell and of its nucleus.

Vacancy-Induced Low-Energy Density of States in the Kitaev Spin Liquid

Wen-Han Kao, Johannes Knolle, Gábor B. Halász, Roderich Moessner, and Natalia B. Perkins

Phys. Rev. X 11, 011034 (2021) - Published 18 February, 2021

A small concentration of vacancies in the Kitaev model of quantum spin liquids (QSLs) alter its low-energy physics, offering a plausible explanation for recent experimental results on the QSL-hosting compound H3LiIr2O6.

Demonstration of Quantum Brachistochrones between Distant States of an Atom

Manolo R. Lam, Natalie Peter, Thorsten Groh, Wolfgang Alt, Carsten Robens, Dieter Meschede, Antonio Negretti, Simone Montangero, Tommaso Calarco, and Andrea Alberti

Phys. Rev. X 11, 011035 (2021) - Published 19 February, 2021

Researchers have transported an atom between two locations in the shortest possible time, an achievement that has implications for quantum technologies.

Pulsed Ion Microscope to Probe Quantum Gases

C. Veit, N. Zuber, O. A. Herrera-Sancho, V. S. V. Anasuri, T. Schmid, F. Meinert, R. Löw, and T. Pfau

Phys. Rev. X 11, 011036 (2021) - Published 22 February, 2021

Researchers have developed an ion-optics-based quantum microscope that has sufficient resolution to image individual atoms.

Density Fluctuations across the Superfluid-Supersolid Phase Transition in a Dipolar Quantum Gas

J. Hertkorn, J.-N. Schmidt, F. Böttcher, M. Guo, M. Schmidt, K. S. H. Ng, S. D. Graham, H. P. Büchler, T. Langen, M. Zwierlein, and T. Pfau

Phys. Rev. X 11, 011037 (2021) - Published 23 February, 2021

Observations of fluctuations in a dipolar quantum gas provide insight into the mechanism underlying the superfluid-to-supersolid phase transition.

Agile and Versatile Quantum Communication: Signatures and Secrets

Stefan Richter, Matthew Thornton, Imran Khan, Hannah Scott, Kevin Jaksch, Ulrich Vogl, Birgit Stiller, Gerd Leuchs, Christoph Marquardt, and Natalia Korolkova

Phys. Rev. X 11, 011038 (2021) - Published 24 February, 2021

A demonstration of “cryptographic agility” in quantum communications offers a robust way to adapt security protocols in the face of a novel attack.

Half-Magnetic Topological Insulator with Magnetization-Induced Dirac Gap at a Selected Surface

Ruie Lu, Hongyi Sun, Shiv Kumar, Yuan Wang, Mingqiang Gu, Meng Zeng, Yu-Jie Hao, Jiayu Li, Jifeng Shao, Xiao-Ming Ma, Zhanyang Hao, Ke Zhang, Wumiti Mansuer, Jiawei Mei, Yue Zhao, Cai Liu, Ke Deng, Wen Huang, Bing Shen, Kenya Shimada, Eike F. Schwier, Chang Liu, Qihang Liu, and Chaoyu Chen

Phys. Rev. X 11, 011039 (2021) - Published 25 February, 2021

Experiments show that an intrinsic magnetic topological insulator is a good platform for exploring half-quantized surface resistivity, a hallmark of elusive axion dynamics.

Unsupervised Learning Universal Critical Behavior via the Intrinsic Dimension

T. Mendes-Santos, X. Turkeshi, M. Dalmonte, and Alex Rodriguez

Phys. Rev. X 11, 011040 (2021) - Published 26 February, 2021

A generic statistical property of large data sets that describe equilibrium systems can reveal phase transition properties, thus introducing a new data-based viewpoint on phase transitions.

Atomic Line Defects and Topological Superconductivity in Unconventional Superconductors

Yi Zhang, Kun Jiang, Fuchun Zhang, Jian Wang, and Ziqiang Wang

Phys. Rev. X 11, 011041 (2021) - Published 1 March, 2021

Theoretical work shows that quasi-one-dimensional topological superconductors can emerge in certain 1D quantum structures, offering a path to engineering behaviors essential to quantum computing.

Field-Induced Magnetic Monopole Plasma in Artificial Spin Ice

M. Goryca, X. Zhang, J. Li, A. L. Balk, J. D. Watts, C. Leighton, C. Nisoli, P. Schiffer, and S. A. Crooker

Phys. Rev. X 11, 011042 (2021) - Published 2 March, 2021

Arrays of nanomagnets known as artificial spin ice can host high densities of mobile magnetic monopolelike quasiparticles at room temperature, opening the door to new studies of magnetic charges in synthetic matter.

Emergence of Bimodal Motility in Active Droplets

Babak Vajdi Hokmabad, Ranabir Dey, Maziyar Jalaal, Devaditya Mohanty, Madina Almukambetova, Kyle A. Baldwin, Detlef Lohse, and Corinna C. Maass

Phys. Rev. X 11, 011043 (2021) - Published 3 March, 2021

Microscopy experiments reveal how oil droplets dissolving in a water solution change up their “swimming” patterns as the viscosity of the solution changes.

Optimal Evolutionary Control for Artificial Selection on Molecular Phenotypes

Armita Nourmohammad and Ceyhun Eksin

Phys. Rev. X 11, 011044 (2021) - Published 4 March, 2021

Optimal control for artificial selection offers a new paradigm for directing stochastic evolution of multivariate molecular characteristics and phenotypes toward desired targets.

Negative Energy Elasticity in a Rubberlike Gel

Yuki Yoshikawa, Naoyuki Sakumichi, Ung-il Chung, and Takamasa Sakai

Phys. Rev. X 11, 011045 (2021) - Published 5 March, 2021

Contrary to common belief, the softness of polymer gels is determined by negative energy elasticity and not only by entropy elasticity, a key finding for designing gels used in medical applications at various temperatures.

Autonomous Temporal Probability Concentration: Clockworks and the Second Law of Thermodynamics

Emanuel Schwarzhans, Maximilian P. E. Lock, Paul Erker, Nicolai Friis, and Marcus Huber

Phys. Rev. X 11, 011046 (2021) - Published 8 March, 2021

The second law of thermodynamics limits the potential for any system to serve as a clock, while the system’s complexity determines how well this can be achieved in practice.

Improved Thermal Area Law and Quasilinear Time Algorithm for Quantum Gibbs States

Tomotaka Kuwahara, Álvaro M. Alhambra, and Anurag Anshu

Phys. Rev. X 11, 011047 (2021) - Published 9 March, 2021

An analysis of the “area law” for thermal states shows the presence of much weaker correlations than previously believed, providing an avenue for more efficient simulations of quantum many-body systems.

Competition, Collaboration, and Optimization in Multiple Interacting Spreading Processes

Hanlin Sun, David Saad, and Andrey Y. Lokhov

Phys. Rev. X 11, 011048 (2021) - Published 10 March, 2021

To predict and control the spread of collaborative epidemics or competing marketing campaigns, new computationally efficient algorithms offer crucial insights in scenarios where multiple processes interact.

Laplacian-Level Quantum Hydrodynamic Theory for Plasmonics

Henrikh M. Baghramyan, Fabio Della Sala, and Cristian Ciracì

Phys. Rev. X 11, 011049 (2021) - Published 11 March, 2021

A generalization of quantum hydrodynamic theory provides a new, accurate approach to calculating the optical response of a plasmonic system beyond classical electromagnetism.

Electronic Structure Trends Across the Rare-Earth Series in Superconducting Infinite-Layer Nickelates

Emily Been, Wei-Sheng Lee, Harold Y. Hwang, Yi Cui, Jan Zaanen, Thomas Devereaux, Brian Moritz, and Chunjing Jia

Phys. Rev. X 11, 011050 (2021) - Published 11 March, 2021

A complex interplay of electric and magnetic behaviors resides in the parent compound of a nickel oxide material known to host high-temperature superconductivity, a finding that may guide studies into this phenomenon.

From Hi-C Contact Map to Three-Dimensional Organization of Interphase Human Chromosomes

Guang Shi and D. Thirumalai

Phys. Rev. X 11, 011051 (2021) - Published 15 March, 2021

A new computational method solves a major problem in biology—how to obtain 3D coordinates of positions on chromosomes from 2D “contact maps” that encode distances between the positions.

Deep Learning Protein Conformational Space with Convolutions and Latent Interpolations

Venkata K. Ramaswamy, Samuel C. Musson, Chris G. Willcocks, and Matteo T. Degiacomi

Phys. Rev. X 11, 011052 (2021) - Published 15 March, 2021

A trained neural network predicts intermediate shapes for proteins, opening the door to new techniques for pharmaceutical discovery and design.

Intermittency of Velocity Circulation in Quantum Turbulence

Nicolás P. Müller, Juan Ignacio Polanco, and Giorgio Krstulovic

Phys. Rev. X 11, 011053 (2021) - Published 16 March, 2021

Simulations of turbulent quantum and classical fluids show that the collective behavior of vortices in quantum flows within different-sized regions is very similar to that in classical turbulence.

Ionically Charged Topological Defects in Nematic Fluids

Jeffrey C. Everts and Miha Ravnik

Phys. Rev. X 11, 011054 (2021) - Published 16 March, 2021

Topological defects in nematic electrolytes can separate electric charges and stabilize them without the need for additional surfaces, with possible applications in microelectronics.

Higgs-Mediated Optical Amplification in a Nonequilibrium Superconductor

Michele Buzzi, Gregor Jotzu, Andrea Cavalleri, J. Ignacio Cirac, Eugene A. Demler, Bertrand I. Halperin, Mikhail D. Lukin, Tao Shi, Yao Wang, and Daniel Podolsky

Phys. Rev. X 11, 011055 (2021) - Published 17 March, 2021

A novel technique for probing photoinduced superconductivity supports the existence of such a state in the compound K3C60 by demonstrating large Higgs mode oscillations.

All Holographic Four-Point Functions in All Maximally Supersymmetric CFTs

Luis F. Alday and Xinan Zhou

Phys. Rev. X 11, 011056 (2021) - Published 18 March, 2021

A mathematical framework for organizing correlators in conformal field theory (CFT) and corresponding scattering amplitudes in anti–de Sitter (AdS) space greatly enhances the computing power of AdS/CFT for analyzing quantum gravity.

Suppressing Dissipation in a Floquet-Hubbard System

Konrad Viebahn, Joaquín Minguzzi, Kilian Sandholzer, Anne-Sophie Walter, Manish Sajnani, Frederik Görg, and Tilman Esslinger

Phys. Rev. X 11, 011057 (2021) - Published 19 March, 2021

Floquet engineering uses periodic driving to design novel quantum matter but is limited by dissipation. Experiments show how to use interference between related drives to combat these losses.

Tracking the Footprints of Spin Fluctuations: A MultiMethod, MultiMessenger Study of the Two-Dimensional Hubbard Model

Thomas Schäfer et al.

Phys. Rev. X 11, 011058 (2021) - Published 23 March, 2021

An extensive assessment of the ability of many computational methods to tackle the fundamental model of interacting particles, the Hubbard model, reveals the nature and role of magnetic fluctuations.

Doublonlike Excitations and Their Phononic Coupling in a Mott Charge-Density-Wave System

C. J. Butler, M. Yoshida, T. Hanaguri, and Y. Iwasa

Phys. Rev. X 11, 011059 (2021) - Published 24 March, 2021

By injecting electrons into the Mott state of tantalum disulfide, experiments reveal new, unexpected electronic behaviors that could shed light on the underlying interactions that create this exotic state.

Revealing the Absolute Direction of the Dzyaloshinskii-Moriya Interaction in Prototypical Weak Ferromagnets by Polarized Neutrons

H. Thoma, V. Hutanu, H. Deng, V. E. Dmitrienko, P. J. Brown, A. Gukasov, G. Roth, and M. Angst

Phys. Rev. X 11, 011060 (2021) - Published 25 March, 2021

Experiments show that polarized neutron diffraction is an effective tool for determining the direction of a basic magnetic interaction that impacts spintronics devices and topological materials.

All States are Universal Catalysts in Quantum Thermodynamics

Patryk Lipka-Bartosik and Paul Skrzypczyk

Phys. Rev. X 11, 011061 (2021) - Published 26 March, 2021

Counter to intuition, a mathematical analysis shows that any quantum state can be a “quantum catalyst”—a special reusable state that makes certain manipulations possible—as long as there are enough copies.

Euclidean Frustrated Ribbons

Emmanuel Siéfert, Ido Levin, and Eran Sharon

Phys. Rev. X 11, 011062 (2021) - Published 29 March, 2021

A new mechanism to engineer residually stressed thin sheets exploits the intrinsic tendency of the sheet to bend, a key insight for developing self-shaping materials.

Gapped Chiral Fermions

Shlomo S. Razamat and David Tong

Phys. Rev. X 11, 011063 (2021) - Published 31 March, 2021

New mathematical models show that it is possible for “chiral” fermions to acquire mass without the electroweak symmetry breaking that comes from the Higgs boson.

Comment on “Absence of a Dissipative Quantum Phase Transition in Josephson Junctions”

Pertti J. Hakonen and Edouard B. Sonin

Phys. Rev. X 11, 018001 (2021) - Published 12 March, 2021

Reply to “Comment on ‘Absence of a Dissipative Quantum Phase Transition in Josephson Junctions”’

A. Murani, N. Bourlet, H. le Sueur, F. Portier, C. Altimiras, D. Esteve, H. Grabert, J. Stockburger, J. Ankerhold, and P. Joyez

Phys. Rev. X 11, 018002 (2021) - Published 12 March, 2021

Erratum: Depolarization of Electronic Spin Qubits Confined in Semiconductor Quantum Dots [Phys. Rev. X 8, 041050 (2018)]

Dan Cogan, Oded Kenneth, Netanel H. Lindner, Giora Peniakov, Caspar Hopfmann, Dan Dalacu, Philip J. Poole, Pawel Hawrylak, and David Gershoni

Phys. Rev. X 11, 019901 (2021) - Published 27 January, 2021

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation