Volume 122, Issue 6

15 February 2019

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On the Cover

Experimental setup of cold ⁸⁷Rb atoms prepared in a magneto-optical trap for generating and manipulating spin waves through ac Stark modulation. W (R) represents the write (read) laser, w (r) the writeout (readout) photon, and B the magnetic field.

From the article:

Quantum Optics of Spin Waves through ac Stark Modulation
Michał Parniak, Mateusz Mazelanik, Adam Leszczyński, Michał Lipka, Michał Dąbrowski, and Wojciech Wasilewski
Phys. Rev. Lett. 122, 063604 (2019)

HIGHLIGHTED ARTICLES

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Universe’s Worth of Electrons to Probe Long-Range Interactions of High-Energy Astrophysical Neutrinos

Mauricio Bustamante and Sanjib Kumar Agarwalla

Phys. Rev. Lett. 122, 061103 (2019) - Published 12 February, 2019

Researchers place new limits on hypothetical interactions between neutrinos and large electron populations on galactic scales.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Experimental Observation of Superscattering

Chao Qian, Xiao Lin, Yi Yang, Xiaoyan Xiong, Huaping Wang, Erping Li, Ido Kaminer, Baile Zhang, and Hongsheng Chen

Phys. Rev. Lett. 122, 063901 (2019) - Published 11 February, 2019

A team has engineered a subwavelength structure that features a greatly enhanced capacity to scatter microwave light.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Morphometric Approach to Many-Body Correlations in Hard Spheres

Joshua F. Robinson, Francesco Turci, Roland Roth, and C. Patrick Royall

Phys. Rev. Lett. 122, 068004 (2019) - Published 14 February, 2019

Reconciling the high viscosity of “supercooled” liquids with their microstructure has stumped existing theory, but an advance in liquid-state theory may lead to a resolution.

FEATURED IN PHYSICS

Bending to Kinetic Energy Transfer in Adhesive Peel Front Microinstability

V. De Zotti, K. Rapina, P.-P. Cortet, L. Vanel, and S. Santucci

Phys. Rev. Lett. 122, 068005 (2019) - Published 15 February, 2019

Exhaustive experiments lead to a theory that describes the microscale, jerky process involved in the seemingly smooth peeling of tape from a surface.

EDITORS' SUGGESTION

Experimental Realization of a Quantum Autoencoder: The Compression of Qutrits via Machine Learning

Alex Pepper, Nora Tischler, and Geoff J. Pryde

Phys. Rev. Lett. 122, 060501 (2019) - Published 11 February, 2019

Classical machine learning is used to experimentally compress quantum information in a photonic system.

EDITORS' SUGGESTION

Signatures of Quark-Hadron Phase Transitions in General-Relativistic Neutron-Star Mergers

Elias R. Most, L. Jens Papenfort, Veronica Dexheimer, Matthias Hanauske, Stefan Schramm, Horst Stöcker, and Luciano Rezzolla

Phys. Rev. Lett. 122, 061101 (2019) - Published 12 February, 2019

Two theoretical studies quantify how gravitational waves may serve as probes of phases of nuclear matter in neutron stars.

EDITORS' SUGGESTION

Identifying a First-Order Phase Transition in Neutron-Star Mergers through Gravitational Waves

Andreas Bauswein, Niels-Uwe F. Bastian, David B. Blaschke, Katerina Chatziioannou, James A. Clark, Tobias Fischer, and Micaela Oertel

Phys. Rev. Lett. 122, 061102 (2019) - Published 12 February, 2019

Two theoretical studies quantify how gravitational waves may serve as probes of phases of nuclear matter in neutron stars.

EDITORS' SUGGESTION

Ultrafast X-Ray Scattering Measurements of Coherent Structural Dynamics on the Ground-State Potential Energy Surface of a Diplatinum Molecule

Kristoffer Haldrup, Gianluca Levi, Elisa Biasin, Peter Vester, Mads Goldschmidt Laursen, Frederik Beyer, Kasper Skov Kjær, Tim Brandt van Driel, Tobias Harlang, Asmus O. Dohn, Robert J. Hartsock, Silke Nelson, James M. Glownia, Henrik T. Lemke, Morten Christensen, Kelly J. Gaffney, Niels E. Henriksen, Klaus B. Møller, and Martin M. Nielsen

Phys. Rev. Lett. 122, 063001 (2019) - Published 13 February, 2019

Using an x-ray free electron laser, the first direct, sub-picosecond measurements of ground-state bond-length dynamics in a prototypical metal complex in solution suggest an advance in methods of probing the structural dynamics of molecules in general.

EDITORS' SUGGESTION

Hexagonal Layered Polymeric Nitrogen Phase Synthesized near 250 GPa

D. Laniel, G. Geneste, G. Weck, M. Mezouar, and P. Loubeyre

Phys. Rev. Lett. 122, 066001 (2019) - Published 11 February, 2019

A new solid nitrogen structure of two-dimensional interconnected hexagons emerges at pressures of 180–250 GPa.

EDITORS' SUGGESTION

Fermi-Arc-Induced Vortex Structure in Weyl Beam Shifts

Udvas Chattopadhyay, Li-kun Shi, Baile Zhang, Justin C. W. Song, and Y. D. Chong

Phys. Rev. Lett. 122, 066602 (2019) - Published 13 February, 2019

A striking variant of the Goos-Hänchen shift linked to topological Fermi arc surface states in Weyl media provides a novel observable signature of topological surface states.

EDITORS' SUGGESTION

Signatures of Enhanced Superconducting Phase Coherence in Optimally Doped ${Bi}_{2} {Sr}_{2} Y_{0.08} {Ca}_{0.92} {Cu}_{2} O_{8 + δ}$ Driven by Midinfrared Pulse Excitations

F. Giusti, A. Marciniak, F. Randi, G. Sparapassi, F. Boschini, H. Eisaki, M. Greven, A. Damascelli, A. Avella, and D. Fausti

Phys. Rev. Lett. 122, 067002 (2019) - Published 15 February, 2019

Ultrashort mid-infrared laser pulses can drive the superconducting state of an optimally doped bismuth cuprate to about 10K above its thermodynamic transition temperature.

LETTERS

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

EDITORS' SUGGESTION

Experimental Realization of a Quantum Autoencoder: The Compression of Qutrits via Machine Learning

Alex Pepper, Nora Tischler, and Geoff J. Pryde

Phys. Rev. Lett. 122, 060501 (2019) - Published 11 February, 2019

Classical machine learning is used to experimentally compress quantum information in a photonic system.

Device-Independent Detection of Genuine Multipartite Entanglement for All Pure States

M. Zwerger, W. Dür, J.-D. Bancal, and P. Sekatski

Phys. Rev. Lett. 122, 060502 (2019) - Published 12 February, 2019

Limits on Spectral Resolution Measurements by Quantum Probes

Amit Rotem, Tuvia Gefen, Santiago Oviedo-Casado, Javier Prior, Simon Schmitt, Yoram Burak, Liam McGuiness, Fedor Jelezko, and Alex Retzker

Phys. Rev. Lett. 122, 060503 (2019) - Published 13 February, 2019

Quantum Algorithms for Systems of Linear Equations Inspired by Adiabatic Quantum Computing

Yiğit Subaşı, Rolando D. Somma, and Davide Orsucci

Phys. Rev. Lett. 122, 060504 (2019) - Published 14 February, 2019

Quantifying Memory Capacity as a Quantum Thermodynamic Resource

Varun Narasimhachar, Jayne Thompson, Jiajun Ma, Gilad Gour, and Mile Gu

Phys. Rev. Lett. 122, 060601 (2019) - Published 13 February, 2019

Accelerating Molecular Dynamics Simulations with Population Annealing

Henrik Christiansen, Martin Weigel, and Wolfhard Janke

Phys. Rev. Lett. 122, 060602 (2019) - Published 14 February, 2019

Gravitation and Astrophysics

EDITORS' SUGGESTION

Signatures of Quark-Hadron Phase Transitions in General-Relativistic Neutron-Star Mergers

Elias R. Most, L. Jens Papenfort, Veronica Dexheimer, Matthias Hanauske, Stefan Schramm, Horst Stöcker, and Luciano Rezzolla

Phys. Rev. Lett. 122, 061101 (2019) - Published 12 February, 2019

Two theoretical studies quantify how gravitational waves may serve as probes of phases of nuclear matter in neutron stars.

EDITORS' SUGGESTION

Identifying a First-Order Phase Transition in Neutron-Star Mergers through Gravitational Waves

Andreas Bauswein, Niels-Uwe F. Bastian, David B. Blaschke, Katerina Chatziioannou, James A. Clark, Tobias Fischer, and Micaela Oertel

Phys. Rev. Lett. 122, 061102 (2019) - Published 12 February, 2019

Two theoretical studies quantify how gravitational waves may serve as probes of phases of nuclear matter in neutron stars.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Universe’s Worth of Electrons to Probe Long-Range Interactions of High-Energy Astrophysical Neutrinos

Mauricio Bustamante and Sanjib Kumar Agarwalla

Phys. Rev. Lett. 122, 061103 (2019) - Published 12 February, 2019

Researchers place new limits on hypothetical interactions between neutrinos and large electron populations on galactic scales.

Constraining the $p$ -Mode– $g$ -Mode Tidal Instability with GW170817

B. P. Abbott et al. (LIGO Scientific Collaboration and Virgo Collaboration)

Phys. Rev. Lett. 122, 061104 (2019) - Published 13 February, 2019

Prospects for Resolving the Hubble Constant Tension with Standard Sirens

Stephen M. Feeney, Hiranya V. Peiris, Andrew R. Williamson, Samaya M. Nissanke, Daniel J. Mortlock, Justin Alsing, and Dan Scolnic

Phys. Rev. Lett. 122, 061105 (2019) - Published 14 February, 2019

Action Principle for Newtonian Gravity

Dennis Hansen, Jelle Hartong, and Niels A. Obers

Phys. Rev. Lett. 122, 061106 (2019) - Published 15 February, 2019

Dark Energy after GW170817 Revisited

Edmund J. Copeland, Michael Kopp, Antonio Padilla, Paul M. Saffin, and Constantinos Skordis

Phys. Rev. Lett. 122, 061301 (2019) - Published 12 February, 2019

Elementary Particles and Fields

First Measurement of the Form Factors in $D_{s}^{+} \to K^{0} e^{+} ν_{e}$ and $D_{s}^{+} \to K^{* 0} e^{+} ν_{e}$ Decays

M. Ablikim et al. (BESIII Collaboration)

Phys. Rev. Lett. 122, 061801 (2019) - Published 15 February, 2019

Observation of $D^{+} \to f_{0} (500) e^{+} ν_{e}$ and Improved Measurements of $D \to ρ e^{+} ν_{e}$

M. Ablikim et al. (BESIII Collaboration)

Phys. Rev. Lett. 122, 062001 (2019) - Published 13 February, 2019

Multiplicative Renormalizability of Operators defining Quasiparton Distributions

Zheng-Yang Li, Yan-Qing Ma, and Jian-Wei Qiu

Phys. Rev. Lett. 122, 062002 (2019) - Published 15 February, 2019

Nuclear Physics

Experimental Evidence for Transverse Wobbling in ${}^{105}{Pd}$

J. Timár et al.

Phys. Rev. Lett. 122, 062501 (2019) - Published 12 February, 2019

Neutron Drip Line in the Ca Region from Bayesian Model Averaging

Léo Neufcourt, Yuchen Cao (曹宇晨), Witold Nazarewicz, Erik Olsen, and Frederi Viens

Phys. Rev. Lett. 122, 062502 (2019) - Published 14 February, 2019

Finite-Volume Spectrum of $π^{+} π^{+}$ and $π^{+} π^{+} π^{+}$ Systems

M. Mai and M. Döring

Phys. Rev. Lett. 122, 062503 (2019) - Published 13 February, 2019

Fingerprints of Heavy-Element Nucleosynthesis in the Late-Time Lightcurves of Kilonovae

Meng-Ru Wu, J. Barnes, G. Martínez-Pinedo, and B. D. Metzger

Phys. Rev. Lett. 122, 062701 (2019) - Published 12 February, 2019

Atomic, Molecular, and Optical Physics

EDITORS' SUGGESTION

Ultrafast X-Ray Scattering Measurements of Coherent Structural Dynamics on the Ground-State Potential Energy Surface of a Diplatinum Molecule

Phys. Rev. Lett. 122, 063001 (2019) - Published 13 February, 2019

Electric Quadrupole Moment and the Tensor Magnetic Polarizability of Twisted Electrons and a Potential for their Measurements

Alexander J. Silenko, Pengming Zhang, and Liping Zou

Phys. Rev. Lett. 122, 063201 (2019) - Published 12 February, 2019

Coherent Control and Wave Mixing in an Ensemble of Silicon-Vacancy Centers in Diamond

Christian Weinzetl, Johannes Görlitz, Jonas Nils Becker, Ian A. Walmsley, Eilon Poem, Joshua Nunn, and Christoph Becher

Phys. Rev. Lett. 122, 063601 (2019) - Published 12 February, 2019

Witnessing Genuine Multiphoton Indistinguishability

Daniel J. Brod, Ernesto F. Galvão, Niko Viggianiello, Fulvio Flamini, Nicolò Spagnolo, and Fabio Sciarrino

Phys. Rev. Lett. 122, 063602 (2019) - Published 13 February, 2019

Revealing the Presence of Potential Crossings in Diatomics Induced by Quantum Cavity Radiation

Johan F. Triana and José Luis Sanz-Vicario

Phys. Rev. Lett. 122, 063603 (2019) - Published 14 February, 2019

Quantum Optics of Spin Waves through ac Stark Modulation

Michał Parniak, Mateusz Mazelanik, Adam Leszczyński, Michał Lipka, Michał Dąbrowski, and Wojciech Wasilewski

Phys. Rev. Lett. 122, 063604 (2019) - Published 14 February, 2019

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, etc.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Experimental Observation of Superscattering

Chao Qian, Xiao Lin, Yi Yang, Xiaoyan Xiong, Huaping Wang, Erping Li, Ido Kaminer, Baile Zhang, and Hongsheng Chen

Phys. Rev. Lett. 122, 063901 (2019) - Published 11 February, 2019

A team has engineered a subwavelength structure that features a greatly enhanced capacity to scatter microwave light.

Solitons in Inhomogeneous Gauge Potentials: Integrable and Nonintegrable Dynamics

Y. V. Kartashov, V. V. Konotop, M. Modugno, and E. Ya. Sherman

Phys. Rev. Lett. 122, 064101 (2019) - Published 15 February, 2019

Normal and Anomalous Diffusion in Soft Lorentz Gases

Rainer Klages, Sol Selene Gil Gallegos, Janne Solanpää, Mika Sarvilahti, and Esa Räsänen

Phys. Rev. Lett. 122, 064102 (2019) - Published 14 February, 2019

Plasma and Beam Physics

Demonstration of Tokamak Discharge Shutdown with Shell Pellet Payload Impurity Dispersal

E. M. Hollmann, P. B. Parks, D. Shiraki, N. Alexander, N. W. Eidietis, C. J. Lasnier, and R. A. Moyer

Phys. Rev. Lett. 122, 065001 (2019) - Published 12 February, 2019

Condensed Matter: Structure, etc.

Quantum Entanglement in Deep Learning Architectures

Yoav Levine, Or Sharir, Nadav Cohen, and Amnon Shashua

Phys. Rev. Lett. 122, 065301 (2019) - Published 12 February, 2019

Fractionalization Waves in Two-Dimensional Dirac Fermions: Quantum Imprint from One Dimension

Seth M. Davis and Matthew S. Foster

Phys. Rev. Lett. 122, 065302 (2019) - Published 14 February, 2019

Band Gap Closing in a Synthetic Hall Tube of Neutral Fermions

Jeong Ho Han, Jin Hyoun Kang, and Y. Shin

Phys. Rev. Lett. 122, 065303 (2019) - Published 15 February, 2019

EDITORS' SUGGESTION

Hexagonal Layered Polymeric Nitrogen Phase Synthesized near 250 GPa

D. Laniel, G. Geneste, G. Weck, M. Mezouar, and P. Loubeyre

Phys. Rev. Lett. 122, 066001 (2019) - Published 11 February, 2019

A new solid nitrogen structure of two-dimensional interconnected hexagons emerges at pressures of 180–250 GPa.

Control of Knock-On Damage for 3D Atomic Scale Quantification of Nanostructures: Making Every Electron Count in Scanning Transmission Electron Microscopy

Sandra Van Aert, Annick De Backer, Lewys Jones, Gerardo T. Martinez, Armand Béché, and Peter D. Nellist

Phys. Rev. Lett. 122, 066101 (2019) - Published 13 February, 2019

Condensed Matter: Electronic Properties, etc.

Pressure Effects on the $4 f$ Electronic Structure of Light Lanthanides

W.-T. Chiu, D. R. Mortensen, M. J. Lipp, G. Resta, C. J. Jia, B. Moritz, T. P. Devereaux, S. Y. Savrasov, G. T. Seidler, and R. T. Scalettar

Phys. Rev. Lett. 122, 066401 (2019) - Published 13 February, 2019

Disorder-Robust Entanglement Transport

Clemens Gneiting, Daniel Leykam, and Franco Nori

Phys. Rev. Lett. 122, 066601 (2019) - Published 12 February, 2019

EDITORS' SUGGESTION

Fermi-Arc-Induced Vortex Structure in Weyl Beam Shifts

Udvas Chattopadhyay, Li-kun Shi, Baile Zhang, Justin C. W. Song, and Y. D. Chong

Phys. Rev. Lett. 122, 066602 (2019) - Published 13 February, 2019

A striking variant of the Goos-Hänchen shift linked to topological Fermi arc surface states in Weyl media provides a novel observable signature of topological surface states.

$Z_{4}$ parafermions in Weakly Interacting Superconducting Constrictions at the Helical Edge of Quantum Spin Hall Insulators

C. Fleckenstein, N. Traverso Ziani, and B. Trauzettel

Phys. Rev. Lett. 122, 066801 (2019) - Published 11 February, 2019

Enhanced Superconducting State in $FeSe / {SrTiO}_{3}$ by a Dynamic Interfacial Polaron Mechanism

Shuyuan Zhang, Tong Wei, Jiaqi Guan, Qing Zhu, Wei Qin, Weihua Wang, Jiandi Zhang, E. W. Plummer, Xuetao Zhu, Zhenyu Zhang, and Jiandong Guo

Phys. Rev. Lett. 122, 066802 (2019) - Published 14 February, 2019

Spin-Triplet $p$ -Wave Superconductivity Revealed under High Pressure in ${UBe}_{13}$

Yusei Shimizu, Daniel Braithwaite, Dai Aoki, Bernard Salce, and Jean-Pascal Brison

Phys. Rev. Lett. 122, 067001 (2019) - Published 12 February, 2019

EDITORS' SUGGESTION

Signatures of Enhanced Superconducting Phase Coherence in Optimally Doped ${Bi}_{2} {Sr}_{2} Y_{0.08} {Ca}_{0.92} {Cu}_{2} O_{8 + δ}$ Driven by Midinfrared Pulse Excitations

F. Giusti, A. Marciniak, F. Randi, G. Sparapassi, F. Boschini, H. Eisaki, M. Greven, A. Damascelli, A. Avella, and D. Fausti

Phys. Rev. Lett. 122, 067002 (2019) - Published 15 February, 2019

Ultrashort mid-infrared laser pulses can drive the superconducting state of an optimally doped bismuth cuprate to about 10K above its thermodynamic transition temperature.

First-Principles Design of the Spinel Iridate ${Ir}_{2} O_{4}$ for High-Temperature Quantum Spin Ice

Shigeki Onoda and Fumiyuki Ishii

Phys. Rev. Lett. 122, 067201 (2019) - Published 12 February, 2019

Competing Spin Transfer and Dissipation at $Co / Cu (001)$ Interfaces on Femtosecond Timescales

J. Chen, U. Bovensiepen, A. Eschenlohr, T. Müller, P. Elliott, E. K. U. Gross, J. K. Dewhurst, and S. Sharma

Phys. Rev. Lett. 122, 067202 (2019) - Published 12 February, 2019

Local Entanglement Entropy and Mutual Information across the Mott Transition in the Two-Dimensional Hubbard Model

C. Walsh, P. Sémon, D. Poulin, G. Sordi, and A.-M. S. Tremblay

Phys. Rev. Lett. 122, 067203 (2019) - Published 11 February, 2019

Flat Bands, Indirect Gaps, and Unconventional Spin-Wave Behavior Induced by a Periodic Dzyaloshinskii-Moriya Interaction

R. A. Gallardo, D. Cortés-Ortuño, T. Schneider, A. Roldán-Molina, Fusheng Ma, R. E. Troncoso, K. Lenz, H. Fangohr, J. Lindner, and P. Landeros

Phys. Rev. Lett. 122, 067204 (2019) - Published 13 February, 2019

Bright Luminescence from Indirect and Strongly Bound Excitons in h-BN

Léonard Schué, Lorenzo Sponza, Alexandre Plaud, Hakima Bensalah, Kenji Watanabe, Takashi Taniguchi, François Ducastelle, Annick Loiseau, and Julien Barjon

Phys. Rev. Lett. 122, 067401 (2019) - Published 12 February, 2019

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

Cyclization and Relaxation Dynamics of Finite-Length Collapsed Self-Avoiding Polymers

Julian Kappler, Frank Noé, and Roland R. Netz

Phys. Rev. Lett. 122, 067801 (2019) - Published 12 February, 2019

Glass Dynamics and Domain Size in a Solvent-Polymer Weak Gel Measured by Multidimensional Magnetic Resonance Relaxometry and Diffusometry

Nathan H. Williamson, April M. Dower, Sarah L. Codd, Amber L. Broadbent, Dieter Gross, and Joseph D. Seymour

Phys. Rev. Lett. 122, 068001 (2019) - Published 12 February, 2019

Dynamics of a Self-Propelled Particle in a Harmonic Trap

Olivier Dauchot and Vincent Démery

Phys. Rev. Lett. 122, 068002 (2019) - Published 13 February, 2019

Peristaltic Elastic Instability in an Inflated Cylindrical Channel

Nontawit Cheewaruangroj, Karolis Leonavicius, Shankar Srinivas, and John S. Biggins

Phys. Rev. Lett. 122, 068003 (2019) - Published 13 February, 2019

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Morphometric Approach to Many-Body Correlations in Hard Spheres

Joshua F. Robinson, Francesco Turci, Roland Roth, and C. Patrick Royall

Phys. Rev. Lett. 122, 068004 (2019) - Published 14 February, 2019

Reconciling the high viscosity of “supercooled” liquids with their microstructure has stumped existing theory, but an advance in liquid-state theory may lead to a resolution.

FEATURED IN PHYSICS

Bending to Kinetic Energy Transfer in Adhesive Peel Front Microinstability

V. De Zotti, K. Rapina, P.-P. Cortet, L. Vanel, and S. Santucci

Phys. Rev. Lett. 122, 068005 (2019) - Published 15 February, 2019

Exhaustive experiments lead to a theory that describes the microscale, jerky process involved in the seemingly smooth peeling of tape from a surface.

Optimal Segregation of Proteins: Phase Transitions and Symmetry Breaking

Jie Lin, Jiseon Min, and Ariel Amir

Phys. Rev. Lett. 122, 068101 (2019) - Published 13 February, 2019

ERRATA

Erratum: First Dark Matter Constraints from a SuperCDMS Single-Charge Sensitive Detector [Phys. Rev. Lett. 121, 051301 (2018)]

R. Agnese et al.

Phys. Rev. Lett. 122, 069901 (2019) - Published 11 February, 2019