Volume 127, Issue 13

24 September 2021

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On the Cover

A high resolution transmission electron microscopy image of a sample of Schwarz crystal Cu.

From the article:

Formation of Stable Schwarz Crystals in Polycrystalline Copper at the Grain Size Limit
Zhaohui Jin, Xiuyan Li, and K. Lu
Phys. Rev. Lett. 127, 136101 (2021)

HIGHLIGHTED ARTICLES

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Quantum Hypothesis Testing for Exoplanet Detection

Zixin Huang and Cosmo Lupo

Phys. Rev. Lett. 127, 130502 (2021) - Published 23 September, 2021

Treating stars and planets as quantum objects could make it easier for astronomers to directly image exoplanets.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Single-Molecule Vacuum Rabi Splitting: Four-Wave Mixing and Optical Switching at the Single-Photon Level

André Pscherer, Manuel Meierhofer, Daqing Wang, Hrishikesh Kelkar, Diego Martín-Cano, Tobias Utikal, Stephan Götzinger, and Vahid Sandoghdar

Phys. Rev. Lett. 127, 133603 (2021) - Published 24 September, 2021

A single molecule can turn a beam of photons on or off, a potentially useful function for a quantum computer.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Spatially Modulated Superfluid State in Two-Dimensional ${}^{4}{He}$ Films

Jaewon Choi, Alexey A. Zadorozhko, Jeakyung Choi, and Eunseong Kim

Phys. Rev. Lett. 127, 135301 (2021) - Published 21 September, 2021

A scheme that proves the superfluidity of a layer of helium-4 on graphite holds promise for demonstrating that the layer may also be a supersolid.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Measurement of Spin Chern Numbers in Quantum Simulated Topological Insulators

Qing-Xian Lv, Yan-Xiong Du, Zhen-Tao Liang, Hong-Zhi Liu, Jia-Hao Liang, Lin-Qing Chen, Li-Ming Zhou, Shan-Chao Zhang, Dan-Wei Zhang, Bao-Quan Ai, Hui Yan, and Shi-Liang Zhu

Phys. Rev. Lett. 127, 136802 (2021) - Published 23 September, 2021

Using ultracold atoms, researchers measure the number of chiral edge states in a system with time-reversal symmetry.

EDITORS' SUGGESTION

Nonlinear Dynamics in a Synthetic Momentum-State Lattice

Fangzhao Alex An, Bhuvanesh Sundar, Junpeng Hou, Xi-Wang Luo, Eric J. Meier, Chuanwei Zhang, Kaden R. A. Hazzard, and Bryce Gadway

Phys. Rev. Lett. 127, 130401 (2021) - Published 22 September, 2021

Interaction effects are observed in a synthetic lattice of coupled atomic momentum states.

EDITORS' SUGGESTION

Direct Evidence of a Dual Cascade in Gravitational Wave Turbulence

Sébastien Galtier and Sergey V. Nazarenko

Phys. Rev. Lett. 127, 131101 (2021) - Published 20 September, 2021

Direct numerical simulations show that weak gravitational wave turbulence can emerge from an initial excitation of the spacetime metric with a dual cascade of energy and wave action.

LETTERS

General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.

EDITORS' SUGGESTION

Nonlinear Dynamics in a Synthetic Momentum-State Lattice

Fangzhao Alex An, Bhuvanesh Sundar, Junpeng Hou, Xi-Wang Luo, Eric J. Meier, Chuanwei Zhang, Kaden R. A. Hazzard, and Bryce Gadway

Phys. Rev. Lett. 127, 130401 (2021) - Published 22 September, 2021

Interaction effects are observed in a synthetic lattice of coupled atomic momentum states.

Demonstration of a High-Fidelity cnot Gate for Fixed-Frequency Transmons with Engineered $Z Z$ Suppression

A. Kandala, K. X. Wei, S. Srinivasan, E. Magesan, S. Carnevale, G. A. Keefe, D. Klaus, O. Dial, and D. C. McKay

Phys. Rev. Lett. 127, 130501 (2021) - Published 22 September, 2021

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Quantum Hypothesis Testing for Exoplanet Detection

Zixin Huang and Cosmo Lupo

Phys. Rev. Lett. 127, 130502 (2021) - Published 23 September, 2021

Treating stars and planets as quantum objects could make it easier for astronomers to directly image exoplanets.

Direct Fidelity Estimation of Quantum States Using Machine Learning

Xiaoqian Zhang, Maolin Luo, Zhaodi Wen, Qin Feng, Shengshi Pang, Weiqi Luo, and Xiaoqi Zhou

Phys. Rev. Lett. 127, 130503 (2021) - Published 24 September, 2021

Scalable Cold-Atom Quantum Simulator for Two-Dimensional QED

R. Ott, T. V. Zache, F. Jendrzejewski, and J. Berges

Phys. Rev. Lett. 127, 130504 (2021) - Published 24 September, 2021

High-Fidelity Bell-State Preparation with ${}^{40}{Ca}^{+}$ Optical Qubits

Craig R. Clark, Holly N. Tinkey, Brian C. Sawyer, Adam M. Meier, Karl A. Burkhardt, Christopher M. Seck, Christopher M. Shappert, Nicholas D. Guise, Curtis E. Volin, Spencer D. Fallek, Harley T. Hayden, Wade G. Rellergert, and Kenton R. Brown

Phys. Rev. Lett. 127, 130505 (2021) - Published 24 September, 2021

Nonequilibrium Dynamics and Weakly Broken Integrability

Joseph Durnin, M. J. Bhaseen, and Benjamin Doyon

Phys. Rev. Lett. 127, 130601 (2021) - Published 20 September, 2021

Constant of Motion Identifying Excited-State Quantum Phases

Ángel L. Corps and Armando Relaño

Phys. Rev. Lett. 127, 130602 (2021) - Published 24 September, 2021

Kovacs Memory Effect with an Optically Levitated Nanoparticle

Andrei Militaru, Antonio Lasanta, Martin Frimmer, Luis L. Bonilla, Lukas Novotny, and Raúl A. Rica

Phys. Rev. Lett. 127, 130603 (2021) - Published 24 September, 2021

Gravitation and Astrophysics

EDITORS' SUGGESTION

Direct Evidence of a Dual Cascade in Gravitational Wave Turbulence

Sébastien Galtier and Sergey V. Nazarenko

Phys. Rev. Lett. 127, 131101 (2021) - Published 20 September, 2021

Direct numerical simulations show that weak gravitational wave turbulence can emerge from an initial excitation of the spacetime metric with a dual cascade of energy and wave action.

Searching for the Radiative Decay of the Cosmic Neutrino Background with Line-Intensity Mapping

José Luis Bernal, Andrea Caputo, Francisco Villaescusa-Navarro, and Marc Kamionkowski

Phys. Rev. Lett. 127, 131102 (2021) - Published 22 September, 2021

Transient Radio Signatures from Neutron Star Encounters with QCD Axion Miniclusters

Thomas D. P. Edwards, Bradley J. Kavanagh, Luca Visinelli, and Christoph Weniger

Phys. Rev. Lett. 127, 131103 (2021) - Published 23 September, 2021

Destabilization of Black Holes and Stars by Generalized Proca Fields

Sebastian Garcia-Saenz, Aaron Held, and Jun Zhang

Phys. Rev. Lett. 127, 131104 (2021) - Published 23 September, 2021

Elementary Particles and Fields

String Dual to Free $N = 4$ Supersymmetric Yang-Mills Theory

Matthias R. Gaberdiel and Rajesh Gopakumar

Phys. Rev. Lett. 127, 131601 (2021) - Published 23 September, 2021

Axion Mass from Magnetic Monopole Loops

JiJi Fan, Katherine Fraser, Matthew Reece, and John Stout

Phys. Rev. Lett. 127, 131602 (2021) - Published 24 September, 2021

Gravitino Swampland Conjecture

Edward W. Kolb, Andrew J. Long, and Evan McDonough

Phys. Rev. Lett. 127, 131603 (2021) - Published 24 September, 2021

Observation of $D^{0} \to K_{1} (1270)^{-} e^{+} ν_{e}$

M. Ablikim et al. (BESIII Collaboration)

Phys. Rev. Lett. 127, 131801 (2021) - Published 24 September, 2021

Search for Lepton Number and Flavor Violation in $K^{+}$ and $π^{0}$ Decays

R. Aliberti et al. (NA62 Collaboration)

Phys. Rev. Lett. 127, 131802 (2021) - Published 24 September, 2021

Atomic, Molecular, and Optical Physics

Observation of the Decrease of Larmor Tunneling Times with Lower Incident Energy

David C. Spierings and Aephraim M. Steinberg

Phys. Rev. Lett. 127, 133001 (2021) - Published 20 September, 2021

Dynamical Phases and Quantum Correlations in an Emitter-Waveguide System with Feedback

Giuseppe Buonaiuto, Federico Carollo, Beatriz Olmos, and Igor Lesanovsky

Phys. Rev. Lett. 127, 133601 (2021) - Published 21 September, 2021

Room-Temperature Mechanical Resonator with a Single Added or Subtracted Phonon

Rishi N. Patel, Timothy P. McKenna, Zhaoyou Wang, Jeremy D. Witmer, Wentao Jiang, Raphaël Van Laer, Christopher J. Sarabalis, and Amir H. Safavi-Naeini

Phys. Rev. Lett. 127, 133602 (2021) - Published 20 September, 2021

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Single-Molecule Vacuum Rabi Splitting: Four-Wave Mixing and Optical Switching at the Single-Photon Level

André Pscherer, Manuel Meierhofer, Daqing Wang, Hrishikesh Kelkar, Diego Martín-Cano, Tobias Utikal, Stephan Götzinger, and Vahid Sandoghdar

Phys. Rev. Lett. 127, 133603 (2021) - Published 24 September, 2021

A single molecule can turn a beam of photons on or off, a potentially useful function for a quantum computer.

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, etc.

Evidence of Chaotic Dynamics in Three-Soliton Collisions

Feifei Xin, Fabrizio Di Mei, Ludovica Falsi, Davide Pierangeli, Claudio Conti, Aharon J. Agranat, and Eugenio DelRe

Phys. Rev. Lett. 127, 133901 (2021) - Published 24 September, 2021

Exterior Dissipation, Proportional Decay, and Integrals of Motion

M. Aureli and J. A. Hanna

Phys. Rev. Lett. 127, 134101 (2021) - Published 22 September, 2021

Generation of Optical Frequency Comb via Giant Optomechanical Oscillation

Yong Hu, Shulin Ding, Yingchun Qin, Jiaxin Gu, Wenjie Wan, Min Xiao, and Xiaoshun Jiang

Phys. Rev. Lett. 127, 134301 (2021) - Published 20 September, 2021

Reversible Stream Drop Transition in a Microfluidic Coflow System via On Demand Exposure to Acoustic Standing Waves

E. Hemachandran, S. Z. Hoque, T. Laurell, and A. K. Sen

Phys. Rev. Lett. 127, 134501 (2021) - Published 20 September, 2021

Continuous Pathway between the Elasto-Inertial and Elastic Turbulent States in Viscoelastic Channel Flow

Mohammad Khalid, V. Shankar, and Ganesh Subramanian

Phys. Rev. Lett. 127, 134502 (2021) - Published 22 September, 2021

Condensed Matter: Structure, etc.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Spatially Modulated Superfluid State in Two-Dimensional ${}^{4}{He}$ Films

Jaewon Choi, Alexey A. Zadorozhko, Jeakyung Choi, and Eunseong Kim

Phys. Rev. Lett. 127, 135301 (2021) - Published 21 September, 2021

A scheme that proves the superfluidity of a layer of helium-4 on graphite holds promise for demonstrating that the layer may also be a supersolid.

Novel High-Pressure Yttrium Carbide $γ − Y_{4} C_{5}$ Containing [ $C_{2}$ ] and Nonlinear [ $C_{3}$ ] Units with Unusually Large Formal Charges

Alena Aslandukova, Andrey Aslandukov, Liang Yuan, Dominique Laniel, Saiana Khandarkhaeva, Timofey Fedotenko, Gerd Steinle-Neumann, Konstantin Glazyrin, Natalia Dubrovinskaia, and Leonid Dubrovinsky

Phys. Rev. Lett. 127, 135501 (2021) - Published 22 September, 2021

Overscreening and Underscreening in Solid-Electrolyte Grain Boundary Space-Charge Layers

Jacob M. Dean, Samuel W. Coles, William R. Saunders, Andrew R. McCluskey, Matthew J. Wolf, Alison B. Walker, and Benjamin J. Morgan

Phys. Rev. Lett. 127, 135502 (2021) - Published 24 September, 2021

Metastability of Liquid Water Freezing into Ice VII under Dynamic Compression

M. C. Marshall, M. Millot, D. E. Fratanduono, D. M. Sterbentz, P. C. Myint, J. L. Belof, Y.-J. Kim, F. Coppari, S. J. Ali, J. H. Eggert, R. F. Smith, and J. M. McNaney

Phys. Rev. Lett. 127, 135701 (2021) - Published 23 September, 2021

Formation of Stable Schwarz Crystals in Polycrystalline Copper at the Grain Size Limit

Zhaohui Jin, Xiuyan Li, and K. Lu

Phys. Rev. Lett. 127, 136101 (2021) - Published 20 September, 2021

Interstitial Hydrogen in $Fe / V$ Superstructures: Lattice Site Location and Thermal Vibration

Kristina Komander, Tuan Tran, Jitendra Saha, Marcos V. Moro, Gunnar K. Pálsson, Max Wolff, and Daniel Primetzhofer

Phys. Rev. Lett. 127, 136102 (2021) - Published 24 September, 2021

Condensed Matter: Electronic Properties, etc.

Pseudomagnetic Fields Enabled Manipulation of On-Chip Elastic Waves

Mou Yan, Weiyin Deng, Xueqin Huang, Ying Wu, Yating Yang, Jiuyang Lu, Feng Li, and Zhengyou Liu

Phys. Rev. Lett. 127, 136401 (2021) - Published 23 September, 2021

Control of Giant Topological Magnetic Moment and Valley Splitting in Trilayer Graphene

Zhehao Ge, Sergey Slizovskiy, Frédéric Joucken, Eberth A. Quezada, Takashi Taniguchi, Kenji Watanabe, Vladimir I. Fal’ko, and Jairo Velasco, Jr.

Phys. Rev. Lett. 127, 136402 (2021) - Published 23 September, 2021

General Bounds on Electronic Shot Noise in the Absence of Currents

Jakob Eriksson, Matteo Acciai, Ludovico Tesser, and Janine Splettstoesser

Phys. Rev. Lett. 127, 136801 (2021) - Published 21 September, 2021

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Measurement of Spin Chern Numbers in Quantum Simulated Topological Insulators

Qing-Xian Lv, Yan-Xiong Du, Zhen-Tao Liang, Hong-Zhi Liu, Jia-Hao Liang, Lin-Qing Chen, Li-Ming Zhou, Shan-Chao Zhang, Dan-Wei Zhang, Bao-Quan Ai, Hui Yan, and Shi-Liang Zhu

Phys. Rev. Lett. 127, 136802 (2021) - Published 23 September, 2021

Using ultracold atoms, researchers measure the number of chiral edge states in a system with time-reversal symmetry.

Giant Transport Anisotropy in ${ReS}_{2}$ Revealed via Nanoscale Conducting-Path Control

Dawei Li, Shuo Sun, Zhiyong Xiao, Jingfeng Song, Ding-Fu Shao, Evgeny Y. Tsymbal, Stephen Ducharme, and Xia Hong

Phys. Rev. Lett. 127, 136803 (2021) - Published 24 September, 2021

Observation of In-Plane Quantum Griffiths Singularity in Two-Dimensional Crystalline Superconductors

Yi Liu, Shichao Qi, Jingchao Fang, Jian Sun, Chong Liu, Yanzhao Liu, Junjie Qi, Ying Xing, Haiwen Liu, Xi Lin, Lili Wang, Qi-Kun Xue, X. C. Xie, and Jian Wang

Phys. Rev. Lett. 127, 137001 (2021) - Published 24 September, 2021

Observation of Pure-Spin-Current Diodelike Effect at the Au/Pt Interface

Pavlo Omelchenko, Eric Arturo Montoya, Erol Girt, and Bret Heinrich

Phys. Rev. Lett. 127, 137201 (2021) - Published 24 September, 2021

Flat Bands and Giant Light-Matter Interaction in Hexagonal Boron Nitride

C. Elias, G. Fugallo, P. Valvin, C. L’Henoret, J. Li, J. H. Edgar, F. Sottile, M. Lazzeri, A. Ouerghi, B. Gil, and G. Cassabois

Phys. Rev. Lett. 127, 137401 (2021) - Published 23 September, 2021

Polymer, Soft Matter, Biological, Climate, and Interdisciplinary Physics

ERRATA

Erratum: Simple Proof of Equivalence between Adiabatic Quantum Computation and the Circuit Model [Phys. Rev. Lett. 99, 070502 (2007)]

Ari Mizel, D. A. Lidar, and M. W. Mitchell

Phys. Rev. Lett. 127, 139901 (2021) - Published 24 September, 2021

Erratum: Transverse Wobbling in ${}^{135}\Pr$ [Phys. Rev. Lett. 114, 082501 (2015)]

J. T. Matta, U. Garg, S. Zhu, R. Palit, S. S. Ghugre, A. D. Ayangeakaa, R. V. F. Janssens, and M. P. Carpenter

Phys. Rev. Lett. 127, 139902 (2021) - Published 24 September, 2021