Volume 124, Issue 9

6 March 2020

Browse Issues:

On the Cover

Magnetization vector on a surface (blue) in the middle of the magnetization region of a stellarator design using permanent magnets. Red arrows show the front half, green arrows show the trailing half of the vector.

From the article:

Stellarators with Permanent Magnets
P. Helander, M. Drevlak, M. Zarnstorff, and S. C. Cowley
Phys. Rev. Lett. 124, 095001 (2020)

HIGHLIGHTED ARTICLES

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Observation of Radar Echoes from High-Energy Particle Cascades

S. Prohira, K. D. de Vries, P. Allison, J. Beatty, D. Besson, A. Connolly, N. van Eijndhoven, C. Hast, C.-Y. Kuo, U. A. Latif, T. Meures, J. Nam, A. Nozdrina, J. P. Ralston, Z. Riesen, C. Sbrocco, J. Torres, and S. Wissel

Phys. Rev. Lett. 124, 091101 (2020) - Published 6 March, 2020

Radar could detect ultrahigh-energy neutrinos from space, according to experiments using electrons as neutrino stand-ins.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Atomically Resolved Chemical Reactivity of Small Fe Clusters

Julian Berwanger, Svitlana Polesya, Sergiy Mankovsky, Hubert Ebert, and Franz J. Giessibl

Phys. Rev. Lett. 124, 096001 (2020) - Published 4 March, 2020

Using a scanning probe microscope, researchers measure the dependence of an atom’s chemical reactivity on the number of chemical bonds it forms.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Weak Measurement Protocols for Majorana Bound State Identification

J. Manousakis, C. Wille, A. Altland, R. Egger, K. Flensberg, and F. Hassler

Phys. Rev. Lett. 124, 096801 (2020) - Published 2 March, 2020

A proposed measurement technique could overcome lingering uncertainties over whether Majorana bound states have been observed in previous experiments.

FEATURED IN PHYSICS

Unusual Avian Vocal Mechanism Facilitates Encoding of Body Size

Gonzalo Uribarri, María José Rodríguez-Cajarville, Pablo Luis Tubaro, Franz Goller, and Gabriel B. Mindlin

Phys. Rev. Lett. 124, 098101 (2020) - Published 4 March, 2020

The physics of how the white-tipped plantcutter creates its raspy cry reveals how a bird’s physical characteristics can link to its song.

EDITORS' SUGGESTION

Time-Crystalline Topological Superconductors

Aaron Chew, David F. Mross, and Jason Alicea

Phys. Rev. Lett. 124, 096802 (2020) - Published 5 March, 2020

Proposed one-dimensional time-crystalline topological superconductors are predicted to yield anomalous Floquet Majorana modes that are not possible in free-fermion systems.

EDITORS' SUGGESTION

Quantum Depinning of a Magnetic Skyrmion

Christina Psaroudaki and Daniel Loss

Phys. Rev. Lett. 124, 097202 (2020) - Published 3 March, 2020

Sufficiently small magnetic skyrmions consisting of some thousands of spins can behave as quantum objects at low temperatures in the mK regime, and may demonstrate macroscopic quantum tunneling.

LETTERS

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

Strongly Correlated Quantum Droplets in Quasi-1D Dipolar Bose Gas

Rafał Ołdziejewski, Wojciech Górecki, Krzysztof Pawłowski, and Kazimierz Rzążewski

Phys. Rev. Lett. 124, 090401 (2020) - Published 2 March, 2020

Quadrature Coherence Scale Driven Fast Decoherence of Bosonic Quantum Field States

Anaelle Hertz and Stephan De Bièvre

Phys. Rev. Lett. 124, 090402 (2020) - Published 5 March, 2020

Reconfigurable Hexapartite Entanglement by Spatially Multiplexed Four-Wave Mixing Processes

Kai Zhang, Wei Wang, Shengshuai Liu, Xiaozhou Pan, Jinjian Du, Yanbo Lou, Sheng Yu, Shuchao Lv, Nicolas Treps, Claude Fabre, and Jietai Jing

Phys. Rev. Lett. 124, 090501 (2020) - Published 3 March, 2020

Scaling and Diabatic Effects in Quantum Annealing with a D-Wave Device

Phillip Weinberg, Marek Tylutki, Jami M. Rönkkö, Jan Westerholm, Jan A. Åström, Pekka Manninen, Päivi Törmä, and Anders W. Sandvik

Phys. Rev. Lett. 124, 090502 (2020) - Published 5 March, 2020

Isoentangled Mutually Unbiased Bases, Symmetric Quantum Measurements, and Mixed-State Designs

Jakub Czartowski, Dardo Goyeneche, Markus Grassl, and Karol Życzkowski

Phys. Rev. Lett. 124, 090503 (2020) - Published 5 March, 2020

Reachability Deficits in Quantum Approximate Optimization

V. Akshay, H. Philathong, M. E. S. Morales, and J. D. Biamonte

Phys. Rev. Lett. 124, 090504 (2020) - Published 5 March, 2020

Efficiently Computable Bounds for Magic State Distillation

Xin Wang, Mark M. Wilde, and Yuan Su

Phys. Rev. Lett. 124, 090505 (2020) - Published 6 March, 2020

Construction of a Pathway Map on a Complicated Energy Landscape

Jianyuan Yin, Yiwei Wang, Jeff Z. Y. Chen, Pingwen Zhang, and Lei Zhang

Phys. Rev. Lett. 124, 090601 (2020) - Published 2 March, 2020

Quantum Fluctuation Theorems beyond Two-Point Measurements

Kaonan Micadei, Gabriel T. Landi, and Eric Lutz

Phys. Rev. Lett. 124, 090602 (2020) - Published 2 March, 2020

Universal Survival Probability for a $d$ -Dimensional Run-and-Tumble Particle

Francesco Mori, Pierre Le Doussal, Satya N. Majumdar, and Grégory Schehr

Phys. Rev. Lett. 124, 090603 (2020) - Published 2 March, 2020

Pairing Correlations across the Superfluid Phase Transition in the Unitary Fermi Gas

S. Jensen, C. N. Gilbreth, and Y. Alhassid

Phys. Rev. Lett. 124, 090604 (2020) - Published 2 March, 2020

Gravitation and Astrophysics

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Observation of Radar Echoes from High-Energy Particle Cascades

Phys. Rev. Lett. 124, 091101 (2020) - Published 6 March, 2020

Radar could detect ultrahigh-energy neutrinos from space, according to experiments using electrons as neutrino stand-ins.

Elementary Particles and Fields

Green-Schwarz Mechanism for String Dualities

Camille Eloy, Olaf Hohm, and Henning Samtleben

Phys. Rev. Lett. 124, 091601 (2020) - Published 6 March, 2020

Quark Transverse Parton Distribution at the Next-to-Next-to-Next-to-Leading Order

Ming-xing Luo, Tong-Zhi Yang, Hua Xing Zhu, and Yu Jiao Zhu

Phys. Rev. Lett. 124, 092001 (2020) - Published 5 March, 2020

Neutron Valence Structure from Nuclear Deep Inelastic Scattering

E. P. Segarra, A. Schmidt, T. Kutz, D. W. Higinbotham, E. Piasetzky, M. Strikman, L. B. Weinstein, and O. Hen

Phys. Rev. Lett. 124, 092002 (2020) - Published 6 March, 2020

Nuclear Physics

Scattering Studies with Low-Energy Kaon-Proton Femtoscopy in Proton-Proton Collisions at the LHC

S. Acharya et al. (A Large Ion Collider Experiment Collaboration)

Phys. Rev. Lett. 124, 092301 (2020) - Published 6 March, 2020

Possible Lightest $Ξ$ Hypernucleus with Modern $Ξ N$ Interactions

E. Hiyama, K. Sasaki, T. Miyamoto, T. Doi, T. Hatsuda, Y. Yamamoto, and Th. A. Rijken

Phys. Rev. Lett. 124, 092501 (2020) - Published 4 March, 2020

First Glimpse of the $N = 82$ Shell Closure below $Z = 50$ from Masses of Neutron-Rich Cadmium Isotopes and Isomers

V. Manea, J. Karthein, D. Atanasov, M. Bender, K. Blaum, T. E. Cocolios, S. Eliseev, A. Herlert, J. D. Holt, W. J. Huang, Yu. A. Litvinov, D. Lunney, J. Menéndez, M. Mougeot, D. Neidherr, L. Schweikhard, A. Schwenk, J. Simonis, A. Welker, F. Wienholtz, and K. Zuber

Phys. Rev. Lett. 124, 092502 (2020) - Published 5 March, 2020

Equation of State Effects in Core-Collapse Supernovae

H. Yasin, S. Schäfer, A. Arcones, and A. Schwenk

Phys. Rev. Lett. 124, 092701 (2020) - Published 6 March, 2020

Atomic, Molecular, and Optical Physics

Terahertz-Magnetic-Field Induced Ultrafast Faraday Rotation of Molecular Liquids

Vasileios Balos, Genaro Bierhance, Martin Wolf, and Mohsen Sajadi

Phys. Rev. Lett. 124, 093201 (2020) - Published 6 March, 2020

Quantum-Enhanced Velocimetry with Doppler-Broadened Atomic Vapor

Zilong Chen, Hong Ming Lim, Chang Huang, Rainer Dumke, and Shau-Yu Lan

Phys. Rev. Lett. 124, 093202 (2020) - Published 6 March, 2020

Collectively Enhanced Chiral Photon Emission from an Atomic Array near a Nanofiber

Ryan Jones, Giuseppe Buonaiuto, Ben Lang, Igor Lesanovsky, and Beatriz Olmos

Phys. Rev. Lett. 124, 093601 (2020) - Published 2 March, 2020

Quantum Acoustomechanics with a Micromagnet

Carlos Gonzalez-Ballestero, Jan Gieseler, and Oriol Romero-Isart

Phys. Rev. Lett. 124, 093602 (2020) - Published 3 March, 2020

Continuous Generation of Quantum Light from a Single Ground-State Atom in an Optical Cavity

Celso Jorge Villas-Boas, Karl Nicolas Tolazzi, Bo Wang, Christopher Ianzano, and Gerhard Rempe

Phys. Rev. Lett. 124, 093603 (2020) - Published 6 March, 2020

Photon-Mediated Localization in Two-Level Qubit Arrays

Janet Zhong, Nikita A. Olekhno, Yongguan Ke, Alexander V. Poshakinskiy, Chaohong Lee, Yuri S. Kivshar, and Alexander N. Poddubny

Phys. Rev. Lett. 124, 093604 (2020) - Published 5 March, 2020

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, etc.

Localized Nanoresonator Mode in Plasmonic Microcavities

A. Casalis de Pury, X. Zheng, O. S. Ojambati, A. Trifonov, C. Grosse, M-E. Kleemann, V. Babenko, D. Purdie, T. Taniguchi, K. Watanabe, A. Lombardo, G. A. E. Vandenbosch, S. Hofmann, and J. J. Baumberg

Phys. Rev. Lett. 124, 093901 (2020) - Published 6 March, 2020

Plasma and Beam Physics

Stellarators with Permanent Magnets

P. Helander, M. Drevlak, M. Zarnstorff, and S. C. Cowley

Phys. Rev. Lett. 124, 095001 (2020) - Published 5 March, 2020

First Measurements of Electrons and Waves inside an Electrostatic Solitary Wave

H. S. Fu, F. Chen, Z. Z. Chen, Y. Xu, Z. Wang, Y. Y. Liu, C. M. Liu, Y. V. Khotyaintsev, R. E. Ergun, B. L. Giles, and J. L. Burch

Phys. Rev. Lett. 124, 095101 (2020) - Published 3 March, 2020

Condensed Matter: Structure, etc.

Spatial Heterogeneities in Structural Temperature Cause Kovacs’ Expansion Gap Paradox in Aging of Glasses

Matteo Lulli, Chun-Shing Lee, Hai-Yao Deng, Cho-Tung Yip, and Chi-Hang Lam

Phys. Rev. Lett. 124, 095501 (2020) - Published 6 March, 2020

Ab initio Determination of the Phase Diagram of ${CO}_{2}$ at High Pressures and Temperatures

Beatriz H. Cogollo-Olivo, Sananda Biswas, Sandro Scandolo, and Javier A. Montoya

Phys. Rev. Lett. 124, 095701 (2020) - Published 2 March, 2020

Secondary-Phase-Assisted Grain Boundary Migration in ${CuInSe}_{2}$

Chen Li, Ekin Simsek Sanli, Daniel Barragan-Yani, Helena Stange, Marc-Daniel Heinemann, Dieter Greiner, Wilfried Sigle, Roland Mainz, Karsten Albe, Daniel Abou-Ras, and Peter A. van Aken

Phys. Rev. Lett. 124, 095702 (2020) - Published 5 March, 2020

Critical Slowing Down at the Abrupt Mott Transition: When the First-Order Phase Transition Becomes Zeroth Order and Looks Like Second Order

Satyaki Kundu, Tapas Bar, Rajesh Kumble Nayak, and Bhavtosh Bansal

Phys. Rev. Lett. 124, 095703 (2020) - Published 5 March, 2020

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Atomically Resolved Chemical Reactivity of Small Fe Clusters

Julian Berwanger, Svitlana Polesya, Sergiy Mankovsky, Hubert Ebert, and Franz J. Giessibl

Phys. Rev. Lett. 124, 096001 (2020) - Published 4 March, 2020

Using a scanning probe microscope, researchers measure the dependence of an atom’s chemical reactivity on the number of chemical bonds it forms.

Frustration and Atomic Ordering in a Monolayer Semiconductor Alloy

Amin Azizi, Mehmet Dogan, Jeffrey D. Cain, Rahmatollah Eskandari, Xuanze Yu, Emily C. Glazer, Marvin L. Cohen, and Alex Zettl

Phys. Rev. Lett. 124, 096101 (2020) - Published 5 March, 2020

Condensed Matter: Electronic Properties, etc.

Disparate Energy Scaling of Trajectory-Dependent Electronic Excitations for Slow Protons and He Ions

S. Lohmann and D. Primetzhofer

Phys. Rev. Lett. 124, 096601 (2020) - Published 2 March, 2020

Chiral Hall Effect in Noncollinear Magnets from a Cyclic Cohomology Approach

Fabian R. Lux, Frank Freimuth, Stefan Blügel, and Yuriy Mokrousov

Phys. Rev. Lett. 124, 096602 (2020) - Published 4 March, 2020

Fractional Quantum Hall Effect in Weyl Semimetals

Chong Wang, L. Gioia, and A. A. Burkov

Phys. Rev. Lett. 124, 096603 (2020) - Published 6 March, 2020

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Weak Measurement Protocols for Majorana Bound State Identification

J. Manousakis, C. Wille, A. Altland, R. Egger, K. Flensberg, and F. Hassler

Phys. Rev. Lett. 124, 096801 (2020) - Published 2 March, 2020

A proposed measurement technique could overcome lingering uncertainties over whether Majorana bound states have been observed in previous experiments.

EDITORS' SUGGESTION

Time-Crystalline Topological Superconductors

Aaron Chew, David F. Mross, and Jason Alicea

Phys. Rev. Lett. 124, 096802 (2020) - Published 5 March, 2020

Proposed one-dimensional time-crystalline topological superconductors are predicted to yield anomalous Floquet Majorana modes that are not possible in free-fermion systems.

Observation of Discrete Conventional Caroli–de Gennes–Matricon States in the Vortex Core of Single-Layer $FeSe / {SrTiO}_{3}$

Chen Chen, Qin Liu, Wei-Cheng Bao, Yajun Yan, Qiang-Hua Wang, Tong Zhang, and Donglai Feng

Phys. Rev. Lett. 124, 097001 (2020) - Published 6 March, 2020

Restricted Boltzmann Machines for Quantum States with Non-Abelian or Anyonic Symmetries

Tom Vieijra, Corneel Casert, Jannes Nys, Wesley De Neve, Jutho Haegeman, Jan Ryckebusch, and Frank Verstraete

Phys. Rev. Lett. 124, 097201 (2020) - Published 2 March, 2020

EDITORS' SUGGESTION

Quantum Depinning of a Magnetic Skyrmion

Christina Psaroudaki and Daniel Loss

Phys. Rev. Lett. 124, 097202 (2020) - Published 3 March, 2020

Sufficiently small magnetic skyrmions consisting of some thousands of spins can behave as quantum objects at low temperatures in the mK regime, and may demonstrate macroscopic quantum tunneling.

Order out of a Coulomb Phase and Higgs Transition: Frustrated Transverse Interactions of ${Nd}_{2} {Zr}_{2} O_{7}$

J. Xu, Owen Benton, A. T. M. N. Islam, T. Guidi, G. Ehlers, and B. Lake

Phys. Rev. Lett. 124, 097203 (2020) - Published 6 March, 2020

Spectroscopy of Spinons in Coulomb Quantum Spin Liquids

Siddhardh C. Morampudi, Frank Wilczek, and Chris R. Laumann

Phys. Rev. Lett. 124, 097204 (2020) - Published 6 March, 2020

Landau-Quantized Excitonic Absorption and Luminescence in a Monolayer Valley Semiconductor

Erfu Liu, Jeremiah van Baren, Takashi Taniguchi, Kenji Watanabe, Yia-Chung Chang, and Chun Hung Lui

Phys. Rev. Lett. 124, 097401 (2020) - Published 3 March, 2020

Excitation of Nonradiating Anapoles in Dielectric Nanospheres

John A. Parker, Hiroshi Sugimoto, Brighton Coe, Daniel Eggena, Minoru Fujii, Norbert F. Scherer, Stephen K. Gray, and Uttam Manna

Phys. Rev. Lett. 124, 097402 (2020) - Published 6 March, 2020

Nature of the Correlated Insulator States in Twisted Bilayer Graphene

Ming Xie and A. H. MacDonald

Phys. Rev. Lett. 124, 097601 (2020) - Published 2 March, 2020

Coupled Sublattice Melting and Charge-Order Transition in Two Dimensions

T. S. Smith, F. Ming, D. G. Trabada, C. Gonzalez, D. Soler-Polo, F. Flores, J. Ortega, and H. H. Weitering

Phys. Rev. Lett. 124, 097602 (2020) - Published 2 March, 2020

Archetypal Soft-Mode-Driven Antipolar Transition in Francisite ${Cu}_{3} Bi ({SeO}_{3})_{2} O_{2} Cl$

Cosme Milesi-Brault, Constance Toulouse, Evan Constable, Hugo Aramberri, Virginie Simonet, Sophie de Brion, Helmuth Berger, Luigi Paolasini, Alexei Bosak, Jorge Íñiguez, and Mael Guennou

Phys. Rev. Lett. 124, 097603 (2020) - Published 5 March, 2020

Widely Tunable Quantum Phase Transition from Moore-Read to Composite Fermi Liquid in Bilayer Graphene

Zheng Zhu, D. N. Sheng, and Inti Sodemann

Phys. Rev. Lett. 124, 097604 (2020) - Published 5 March, 2020

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

FEATURED IN PHYSICS

Unusual Avian Vocal Mechanism Facilitates Encoding of Body Size

Gonzalo Uribarri, María José Rodríguez-Cajarville, Pablo Luis Tubaro, Franz Goller, and Gabriel B. Mindlin

Phys. Rev. Lett. 124, 098101 (2020) - Published 4 March, 2020

The physics of how the white-tipped plantcutter creates its raspy cry reveals how a bird’s physical characteristics can link to its song.

Living System Adapts Harmonics of Peristaltic Wave for Cost-Efficient Optimization of Pumping Performance

Felix K. Bäuerle, Stefan Karpitschka, and Karen Alim

Phys. Rev. Lett. 124, 098102 (2020) - Published 5 March, 2020