Volume 122, Issue 10

15 March 2019

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On the Cover

Top: Surfaces composed of past wavefronts emitted by a source moving along a circular path at two different Mach numbers. Bottom: Projections along the time direction of the cones immediately above. Thick black arcs show source trajectories. The dashed line marks the position of an observer, with colored lines marking wavefronts that intersect at this position.

From the article:

Space-Time Folding of the Wake Produced by a Supervelocity Rotating Point Source
Chloé d’Hardemare, Sander Wildeman, Antonin Eddi, and Emmanuel Fort
Phys. Rev. Lett. 122, 104301 (2019)

HIGHLIGHTED ARTICLES

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Test of the Einstein Equivalence Principle near the Galactic Center Supermassive Black Hole

A. Amorim et al. (GRAVITY Collaboration)

Phys. Rev. Lett. 122, 101102 (2019) - Published 14 March, 2019

Researchers test a key element of the theory of gravity in the strongest gravitational field to date—that produced by the supermassive black hole at the center of the Milky Way.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Direct Three-Dimensional Measurement of Refractive Index via Dual Photon-Phonon Scattering

Antonio Fiore, Carlo Bevilacqua, and Giuliano Scarcelli

Phys. Rev. Lett. 122, 103901 (2019) - Published 11 March, 2019

3D maps of a sample’s refractive index—used in some biomedical tests—can be directly derived from angle-dependent measurements of light scattering from the sample.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Laser-Driven Electron Lensing in Silicon Microstructures

Dylan S. Black, Kenneth J. Leedle, Yu Miao, Uwe Niedermayer, Robert L. Byer, and Olav Solgaard (ACHIP Collaboration)

Phys. Rev. Lett. 122, 104801 (2019) - Published 12 March, 2019

An array of silicon pillars could focus and confine an electron beam in future computer-chip-sized electron accelerators, allowing faster acceleration of electrons using this technology.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Measurement of the Electrical Properties of a Thundercloud Through Muon Imaging by the GRAPES-3 Experiment

B. Hariharan, A. Chandra, S. R. Dugad, S. K. Gupta, P. Jagadeesan, A. Jain, P. K. Mohanty, S. D. Morris, P. K. Nayak, P. S. Rakshe, K. Ramesh, B. S. Rao, L. V. Reddy, M. Zuberi, Y. Hayashi, S. Kawakami, S. Ahmad, H. Kojima, A. Oshima, S. Shibata, Y. Muraki, and K. Tanaka (GRAPES-3 Collaboration)

Phys. Rev. Lett. 122, 105101 (2019) - Published 15 March, 2019

A thunderstorm probed with atmospheric muons had an electric potential exceeding one billion volts, much higher than values measured previously.

FEATURED IN PHYSICS

Adaptive Compressive Tomography with No a priori Information

D. Ahn, Y. S. Teo, H. Jeong, F. Bouchard, F. Hufnagel, E. Karimi, D. Koutný, J. Řeháček, Z. Hradil, G. Leuchs, and L. L. Sánchez-Soto

Phys. Rev. Lett. 122, 100404 (2019) - Published 15 March, 2019

FEATURED IN PHYSICS

Droplet Coalescence is Initiated by Thermal Motion

Sreehari Perumanath, Matthew K. Borg, Mykyta V. Chubynsky, James E. Sprittles, and Jason M. Reese

Phys. Rev. Lett. 122, 104501 (2019) - Published 13 March, 2019

Simulations reveal that nanometer-scale droplets merge via a zipping-like action initiated by molecular-sized waves on their surfaces.

EDITORS' SUGGESTION

Benchmarking Theory with an Improved Measurement of the Ionization and Dissociation Energies of $H_{2}$

Nicolas Hölsch, Maximilian Beyer, Edcel J. Salumbides, Kjeld S. E. Eikema, Wim Ubachs, Christian Jungen, and Frédéric Merkt

Phys. Rev. Lett. 122, 103002 (2019) - Published 15 March, 2019

High precision determination of the molecular hydrogen dissociation energy is now sensitive to the finite size of the proton.

EDITORS' SUGGESTION

Observation of Hourglass Nodal Lines in Photonics

Lingbo Xia, Qinghua Guo, Biao Yang, Jiaguang Han, Chao-Xing Liu, Weili Zhang, and Shuang Zhang

Phys. Rev. Lett. 122, 103903 (2019) - Published 15 March, 2019

An hourglass nodal line observed in a nonsymmorphic photonic crystal is immune to symmetry preserving perturbation and provides an ideal robust platform for photonic applications.

EDITORS' SUGGESTION

Multistable Free States of an Active Particle from a Coherent Memory Dynamics

V. Bacot, S. Perrard, M. Labousse, Y. Couder, and E. Fort

Phys. Rev. Lett. 122, 104303 (2019) - Published 14 March, 2019

A drop bouncing on a liquid stores information in a wave and rereads it later.

EDITORS' SUGGESTION

Local versus Global Stretched Mechanical Response in a Supercooled Liquid near the Glass Transition

Baoshuang Shang, Jörg Rottler, Pengfei Guan, and Jean-Louis Barrat

Phys. Rev. Lett. 122, 105501 (2019) - Published 12 March, 2019

The stretching exponent of the mechanical relaxation spectrum is spatially homogeneous, as shown by molecular dynamics simulations.

EDITORS' SUGGESTION

Origin of Magic Angles in Twisted Bilayer Graphene

Grigory Tarnopolsky, Alex Jura Kruchkov, and Ashvin Vishwanath

Phys. Rev. Lett. 122, 106405 (2019) - Published 15 March, 2019

The angles at which flat bands emerge to produce superconductivity in twisted bilayer graphene are shown to be fundamentally connected to quantum Hall wave functions.

LETTERS

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

Entropic Energy-Time Uncertainty Relation

Patrick J. Coles, Vishal Katariya, Seth Lloyd, Iman Marvian, and Mark M. Wilde

Phys. Rev. Lett. 122, 100401 (2019) - Published 12 March, 2019

Elastic Scattering Time of Matter Waves in Disordered Potentials

Jérémie Richard, Lih-King Lim, Vincent Denechaud, Valentin V. Volchkov, Baptiste Lecoutre, Musawwadah Mukhtar, Fred Jendrzejewski, Alain Aspect, Adrien Signoles, Laurent Sanchez-Palencia, and Vincent Josse

Phys. Rev. Lett. 122, 100403 (2019) - Published 13 March, 2019

FEATURED IN PHYSICS

Adaptive Compressive Tomography with No a priori Information

D. Ahn, Y. S. Teo, H. Jeong, F. Bouchard, F. Hufnagel, E. Karimi, D. Koutný, J. Řeháček, Z. Hradil, G. Leuchs, and L. L. Sánchez-Soto

Phys. Rev. Lett. 122, 100404 (2019) - Published 15 March, 2019

Measurements of Nonlocal Variables and Demonstration of the Failure of the Product Rule for a Pre- and Postselected Pair of Photons

Xiao-Ye Xu, Wei-Wei Pan, Qin-Qin Wang, Jan Dziewior, Lukas Knips, Yaron Kedem, Kai Sun, Jin-Shi Xu, Yong-Jian Han, Chuan-Feng Li, Guang-Can Guo, and Lev Vaidman

Phys. Rev. Lett. 122, 100405 (2019) - Published 15 March, 2019

Nanoscale Vector dc Magnetometry via Ancilla-Assisted Frequency Up-Conversion

Yi-Xiang Liu (刘仪襄), Ashok Ajoy, and Paola Cappellaro

Phys. Rev. Lett. 122, 100501 (2019) - Published 13 March, 2019

Gravitation and Astrophysics

Towards Understanding the Origin of Cosmic-Ray Electrons

M. Aguilar et al. (AMS Collaboration)

Phys. Rev. Lett. 122, 101101 (2019) - Published 13 March, 2019

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Test of the Einstein Equivalence Principle near the Galactic Center Supermassive Black Hole

A. Amorim et al. (GRAVITY Collaboration)

Phys. Rev. Lett. 122, 101102 (2019) - Published 14 March, 2019

Researchers test a key element of the theory of gravity in the strongest gravitational field to date—that produced by the supermassive black hole at the center of the Milky Way.

Primordial Black Holes from the QCD Axion

Francesc Ferrer, Eduard Masso, Giuliano Panico, Oriol Pujolas, and Fabrizio Rompineve

Phys. Rev. Lett. 122, 101301 (2019) - Published 13 March, 2019

Elementary Particles and Fields

Polarized Scattering Equations for 6D Superamplitudes

Yvonne Geyer and Lionel Mason

Phys. Rev. Lett. 122, 101601 (2019) - Published 11 March, 2019

Spinor-Helicity Formalism for Massless Fields in ${AdS}_{4}$

Balakrishnan Nagaraj and Dmitry Ponomarev

Phys. Rev. Lett. 122, 101602 (2019) - Published 11 March, 2019

Thermal Emission from Semiclassical Dynamical Systems

Takeshi Morita

Phys. Rev. Lett. 122, 101603 (2019) - Published 13 March, 2019

Entanglement Suppression and Emergent Symmetries of Strong Interactions

Silas R. Beane, David B. Kaplan, Natalie Klco, and Martin J. Savage

Phys. Rev. Lett. 122, 102001 (2019) - Published 14 March, 2019

Evidence of a Resonant Structure in the $e^{+} e^{-} \to π^{+} D^{0} D^{* -}$ Cross Section between 4.05 and 4.60 GeV

M. Ablikim et al. (BESIII Collaboration)

Phys. Rev. Lett. 122, 102002 (2019) - Published 15 March, 2019

Nuclear Physics

Origins of Incomplete Fusion Products and the Suppression of Complete Fusion in Reactions of ${}^{7}{Li}$

K. J. Cook, E. C. Simpson, L. T. Bezzina, M. Dasgupta, D. J. Hinde, K. Banerjee, A. C. Berriman, and C. Sengupta

Phys. Rev. Lett. 122, 102501 (2019) - Published 15 March, 2019

Atomic, Molecular, and Optical Physics

Effective Three-Body Interactions in $Cs (6 s) − Cs (n d)$ Rydberg Trimers

Christian Fey, Jin Yang, Seth T. Rittenhouse, Fabian Munkes, Margarita Baluktsian, Peter Schmelcher, H. R. Sadeghpour, and James P. Shaffer

Phys. Rev. Lett. 122, 103001 (2019) - Published 11 March, 2019

EDITORS' SUGGESTION

Benchmarking Theory with an Improved Measurement of the Ionization and Dissociation Energies of $H_{2}$

Nicolas Hölsch, Maximilian Beyer, Edcel J. Salumbides, Kjeld S. E. Eikema, Wim Ubachs, Christian Jungen, and Frédéric Merkt

Phys. Rev. Lett. 122, 103002 (2019) - Published 15 March, 2019

High precision determination of the molecular hydrogen dissociation energy is now sensitive to the finite size of the proton.

Nonadiabatic QED Correction to the Dissociation Energy of the Hydrogen Molecule

Mariusz Puchalski, Jacek Komasa, Paweł Czachorowski, and Krzysztof Pachucki

Phys. Rev. Lett. 122, 103003 (2019) - Published 15 March, 2019

Raman Optical Activity Using Twisted Photons

Kayn A. Forbes

Phys. Rev. Lett. 122, 103201 (2019) - Published 14 March, 2019

Rapid Production of Many-Body Entanglement in Spin-1 Atoms via Cavity Output Photon Counting

Stuart J. Masson and Scott Parkins

Phys. Rev. Lett. 122, 103601 (2019) - Published 12 March, 2019

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, etc.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Direct Three-Dimensional Measurement of Refractive Index via Dual Photon-Phonon Scattering

Antonio Fiore, Carlo Bevilacqua, and Giuliano Scarcelli

Phys. Rev. Lett. 122, 103901 (2019) - Published 11 March, 2019

3D maps of a sample’s refractive index—used in some biomedical tests—can be directly derived from angle-dependent measurements of light scattering from the sample.

Hydrodynamic 2D Turbulence and Spatial Beam Condensation in Multimode Optical Fibers

E. V. Podivilov, D. S. Kharenko, V. A. Gonta, K. Krupa, O. S. Sidelnikov, S. Turitsyn, M. P. Fedoruk, S. A. Babin, and S. Wabnitz

Phys. Rev. Lett. 122, 103902 (2019) - Published 12 March, 2019

EDITORS' SUGGESTION

Observation of Hourglass Nodal Lines in Photonics

Lingbo Xia, Qinghua Guo, Biao Yang, Jiaguang Han, Chao-Xing Liu, Weili Zhang, and Shuang Zhang

Phys. Rev. Lett. 122, 103903 (2019) - Published 15 March, 2019

An hourglass nodal line observed in a nonsymmorphic photonic crystal is immune to symmetry preserving perturbation and provides an ideal robust platform for photonic applications.

Space-Time Folding of the Wake Produced by a Supervelocity Rotating Point Source

Chloé d’Hardemare, Sander Wildeman, Antonin Eddi, and Emmanuel Fort

Phys. Rev. Lett. 122, 104301 (2019) - Published 13 March, 2019

Experimental Realization of Type-II Weyl Points and Fermi Arcs in Phononic Crystal

Boyang Xie, Hui Liu, Hua Cheng, Zhengyou Liu, Shuqi Chen, and Jianguo Tian

Phys. Rev. Lett. 122, 104302 (2019) - Published 14 March, 2019

EDITORS' SUGGESTION

Multistable Free States of an Active Particle from a Coherent Memory Dynamics

V. Bacot, S. Perrard, M. Labousse, Y. Couder, and E. Fort

Phys. Rev. Lett. 122, 104303 (2019) - Published 14 March, 2019

A drop bouncing on a liquid stores information in a wave and rereads it later.

FEATURED IN PHYSICS

Droplet Coalescence is Initiated by Thermal Motion

Sreehari Perumanath, Matthew K. Borg, Mykyta V. Chubynsky, James E. Sprittles, and Jason M. Reese

Phys. Rev. Lett. 122, 104501 (2019) - Published 13 March, 2019

Simulations reveal that nanometer-scale droplets merge via a zipping-like action initiated by molecular-sized waves on their surfaces.

Plasma and Beam Physics

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Laser-Driven Electron Lensing in Silicon Microstructures

Dylan S. Black, Kenneth J. Leedle, Yu Miao, Uwe Niedermayer, Robert L. Byer, and Olav Solgaard (ACHIP Collaboration)

Phys. Rev. Lett. 122, 104801 (2019) - Published 12 March, 2019

An array of silicon pillars could focus and confine an electron beam in future computer-chip-sized electron accelerators, allowing faster acceleration of electrons using this technology.

Electron Beam Driven Generation of Frequency-Tunable Isolated Relativistic Subcycle Pulses

I. Thiele, E. Siminos, and T. Fülöp

Phys. Rev. Lett. 122, 104803 (2019) - Published 14 March, 2019

Direct Measurement of a Toroidally Directed Zonal Flow in a Toroidal Plasma

T. Nishizawa, A. F. Almagri, J. K. Anderson, W. Goodman, M. J. Pueschel, M. D. Nornberg, S. Ohshima, J. S. Sarff, P. W. Terry, and Z. R. Williams

Phys. Rev. Lett. 122, 105001 (2019) - Published 15 March, 2019

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Measurement of the Electrical Properties of a Thundercloud Through Muon Imaging by the GRAPES-3 Experiment

Phys. Rev. Lett. 122, 105101 (2019) - Published 15 March, 2019

A thunderstorm probed with atmospheric muons had an electric potential exceeding one billion volts, much higher than values measured previously.

Condensed Matter: Structure, etc.

Liquid State of One-Dimensional Bose Mixtures: A Quantum Monte Carlo Study

L. Parisi, G. E. Astrakharchik, and S. Giorgini

Phys. Rev. Lett. 122, 105302 (2019) - Published 14 March, 2019

EDITORS' SUGGESTION

Local versus Global Stretched Mechanical Response in a Supercooled Liquid near the Glass Transition

Baoshuang Shang, Jörg Rottler, Pengfei Guan, and Jean-Louis Barrat

Phys. Rev. Lett. 122, 105501 (2019) - Published 12 March, 2019

The stretching exponent of the mechanical relaxation spectrum is spatially homogeneous, as shown by molecular dynamics simulations.

Formation of an r8-Dominant Si Material

S. Wong, B. Haberl, B. C. Johnson, A. Mujica, M. Guthrie, J. C. McCallum, J. S. Williams, and J. E. Bradby

Phys. Rev. Lett. 122, 105701 (2019) - Published 11 March, 2019

Anderson Localization Quenches Thermal Transport in Aperiodic Superlattices

Taneli Juntunen, Osmo Vänskä, and Ilkka Tittonen

Phys. Rev. Lett. 122, 105901 (2019) - Published 12 March, 2019

Direct Cation Exchange in Monolayer ${MoS}_{2}$ via Recombination-Enhanced Migration

Shi-Ze Yang, Weiwei Sun, Yu-Yang Zhang (张余洋), Yongji Gong, Mark P. Oxley, Andrew R. Lupini, Pulickel M. Ajayan, Matthew F. Chisholm, Sokrates T. Pantelides, and Wu Zhou (周武)

Phys. Rev. Lett. 122, 106101 (2019) - Published 11 March, 2019

Electrical Polarization in AlN/GaN Nanodisks Measured by Momentum-Resolved 4D Scanning Transmission Electron Microscopy

Knut Müller-Caspary, Tim Grieb, Jan Müßener, Nicolas Gauquelin, Pascal Hille, Jörg Schörmann, Johan Verbeeck, Sandra Van Aert, Martin Eickhoff, and Andreas Rosenauer

Phys. Rev. Lett. 122, 106102 (2019) - Published 11 March, 2019

Condensed Matter: Electronic Properties, etc.

Direct Detection of Dimer Orbitals in ${Ba}_{5} {AlIr}_{2} O_{11}$

Y. Wang, Ruitang Wang, Jungho Kim, M. H. Upton, D. Casa, T. Gog, G. Cao, G. Kotliar, M. P. M. Dean, and X. Liu

Phys. Rev. Lett. 122, 106401 (2019) - Published 11 March, 2019

Interaction-Induced Fractionalization and Topological Superconductivity in the Polar Molecules Anisotropic $t - J$ Model

Serena Fazzini, Luca Barbiero, and Arianna Montorsi

Phys. Rev. Lett. 122, 106402 (2019) - Published 11 March, 2019

Antidoping in Insulators and Semiconductors Having Intermediate Bands with Trapped Carriers

Qihang Liu, Gustavo M. Dalpian, and Alex Zunger

Phys. Rev. Lett. 122, 106403 (2019) - Published 11 March, 2019

Origin of the Insulating Phase and First-Order Metal-Insulator Transition in $1 T − {TaS}_{2}$

Sung-Hoon Lee, Jung Suk Goh, and Doohee Cho

Phys. Rev. Lett. 122, 106404 (2019) - Published 14 March, 2019

EDITORS' SUGGESTION

Origin of Magic Angles in Twisted Bilayer Graphene

Grigory Tarnopolsky, Alex Jura Kruchkov, and Ashvin Vishwanath

Phys. Rev. Lett. 122, 106405 (2019) - Published 15 March, 2019

The angles at which flat bands emerge to produce superconductivity in twisted bilayer graphene are shown to be fundamentally connected to quantum Hall wave functions.

Universal Scaling Theory of the Boundary Geometric Tensor in Disordered Metals

Miklós Antal Werner, Arne Brataas, Felix von Oppen, and Gergely Zaránd

Phys. Rev. Lett. 122, 106601 (2019) - Published 12 March, 2019

Planar Hall Effect in Antiferromagnetic MnTe Thin Films

Gen Yin, Jie-Xiang Yu, Yizhou Liu, Roger K. Lake, Jiadong Zang, and Kang L. Wang

Phys. Rev. Lett. 122, 106602 (2019) - Published 13 March, 2019

Many-Body Multifractality throughout Bosonic Superfluid and Mott Insulator Phases

Jakob Lindinger, Andreas Buchleitner, and Alberto Rodríguez

Phys. Rev. Lett. 122, 106603 (2019) - Published 12 March, 2019

Detection and Characterization of Anharmonic Overtone Vibrations of Single Molecules on a Metal Surface

Gregory Czap, Zhumin Han (韩竹敏), Peter J. Wagner, and W. Ho

Phys. Rev. Lett. 122, 106801 (2019) - Published 13 March, 2019

Elaboration of Nanomagnet Arrays: Organization and Magnetic Properties of Mass-Selected FePt Nanoparticles Deposited on Epitaxially Grown Graphene on Ir(111)

Pierre Capiod, Laurent Bardotti, Alexandre Tamion, Olivier Boisron, Clément Albin, Véronique Dupuis, Gilles Renaud, Philippe Ohresser, and Florent Tournus

Phys. Rev. Lett. 122, 106802 (2019) - Published 14 March, 2019

Evidence for Spin-Triplet Electron Pairing in the Proximity-Induced Superconducting State of an Fe-Doped InAs Semiconductor

Taketomo Nakamura, Le Duc Anh, Yoshiaki Hashimoto, Shinobu Ohya, Masaaki Tanaka, and Shingo Katsumoto

Phys. Rev. Lett. 122, 107001 (2019) - Published 15 March, 2019

Chiral Phonon Transport Induced by Topological Magnons

Even Thingstad, Akashdeep Kamra, Arne Brataas, and Asle Sudbø

Phys. Rev. Lett. 122, 107201 (2019) - Published 11 March, 2019

Unique Thickness-Dependent Properties of the van der Waals Interlayer Antiferromagnet ${MnBi}_{2} {Te}_{4}$ Films

M. M. Otrokov, I. P. Rusinov, M. Blanco-Rey, M. Hoffmann, A. Yu. Vyazovskaya, S. V. Eremeev, A. Ernst, P. M. Echenique, A. Arnau, and E. V. Chulkov

Phys. Rev. Lett. 122, 107202 (2019) - Published 13 March, 2019

Optically Driven Collective Spin Excitations and Magnetization Dynamics in the Néel-type Skyrmion Host ${GaV}_{4} S_{8}$

P. Padmanabhan, F. Sekiguchi, R. B. Versteeg, E. Slivina, V. Tsurkan, S. Bordács, I. Kézsmárki, and P. H. M. van Loosdrecht

Phys. Rev. Lett. 122, 107203 (2019) - Published 15 March, 2019

Wigner Time Delay Induced by a Single Quantum Dot

Max Strauß, Alexander Carmele, Julian Schleibner, Marcel Hohn, Christian Schneider, Sven Höfling, Janik Wolters, and Stephan Reitzenstein

Phys. Rev. Lett. 122, 107401 (2019) - Published 13 March, 2019

Terahertz Driven Amplification of Coherent Optical Phonons in GaAs Coupled to a Metasurface

Michael Woerner, Carmine Somma, Klaus Reimann, Thomas Elsaesser, Peter Q. Liu, Yuanmu Yang, John L. Reno, and Igal Brener

Phys. Rev. Lett. 122, 107402 (2019) - Published 15 March, 2019

Fractional Josephson Vortices and Braiding of Majorana Zero Modes in Planar Superconductor-Semiconductor Heterostructures

Ady Stern and Erez Berg

Phys. Rev. Lett. 122, 107701 (2019) - Published 14 March, 2019

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

Chiral Incommensurate Helical Phase in a Smectic of Achiral Bent-Core Mesogens

Adam A. S. Green, Michael R. Tuchband, Renfan Shao, Yongqiang Shen, Rayshan Visvanathan, Alexandra E. Duncan, Anne Lehmann, Carsten Tschierske, Eric D. Carlson, Edward Guzman, Maria Kolber, David M. Walba, Cheol S. Park, Matthew A. Glaser, Joseph E. Maclennan, and Noel A. Clark

Phys. Rev. Lett. 122, 107801 (2019) - Published 13 March, 2019