Volume 118, Issue 18

5 May 2017

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On the Cover

Frequency as a function of wave number for a simulation of fast Alfven waves in a magnetically confined fusion plasma.

From the article:

Stimulated Emission of Fast Alfvén Waves within Magnetically Confined Fusion Plasmas
J. W. S. Cook, R. O. Dendy, and S. C. Chapman
Phys. Rev. Lett. 118, 185001 (2017)

HIGHLIGHTED ARTICLES

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Matter-Wave Tractor Beams

Alexey A. Gorlach, Maxim A. Gorlach, Andrei V. Lavrinenko, and Andrey Novitsky

Phys. Rev. Lett. 118, 180401 (2017) - Published 4 May, 2017

Theory shows that the quantum-mechanical wave of a beam of particles can exert a pulling force on a small particle, just as other waves do.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Observation of Five New Narrow $Ω_{c}^{0}$ States Decaying to $Ξ_{c}^{+} K^{-}$

R. Aaij et al. (LHCb Collaboration)

Phys. Rev. Lett. 118, 182001 (2017) - Published 2 May, 2017

The discovery of five new baryonic states at the Large Hadron Collider could shed light on the strong nuclear force.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Phase Shift in an Atom Interferometer due to Spacetime Curvature across its Wave Function

Peter Asenbaum, Chris Overstreet, Tim Kovachy, Daniel D. Brown, Jason M. Hogan, and Mark A. Kasevich

Phys. Rev. Lett. 118, 183602 (2017) - Published 1 May, 2017

The effect of the tidal force, which is directly related to the curvature of spacetime, on an individual particle’s wave function has been measured with an atom interferometer.

FEATURED IN PHYSICS

Cavity Cooling of Many Atoms

Mahdi Hosseini, Yiheng Duan, Kristin M. Beck, Yu-Ting Chen, and Vladan Vuletić

Phys. Rev. Lett. 118, 183601 (2017) - Published 1 May, 2017

A cavity-based method of cooling single atoms or other objects has now been used to cool multiple atoms simultaneously.

FEATURED IN PHYSICS

Holography of Wi-fi Radiation

Philipp M. Holl and Friedemann Reinhard

Phys. Rev. Lett. 118, 183901 (2017) - Published 5 May, 2017

The Wi-Fi signals that provide internet access can also produce images of the transmitter’s 3D surroundings, even through walls.

FEATURED IN PHYSICS

Facile Anhydrous Proton Transport on Hydroxyl Functionalized Graphane

Abhishek Bagusetty, Pabitra Choudhury, Wissam A. Saidi, Bridget Derksen, Elizabeth Gatto, and J. Karl Johnson

Phys. Rev. Lett. 118, 186101 (2017) - Published 3 May, 2017

A proposed graphene-based material could offer speedy transport of protons without the need for water.

EDITORS' SUGGESTION

Experimental Determination of Dynamical Lee-Yang Zeros

Kay Brandner, Ville F. Maisi, Jukka P. Pekola, Juan P. Garrahan, and Christian Flindt

Phys. Rev. Lett. 118, 180601 (2017) - Published 4 May, 2017

Lee-Yang zeros–complex singularities of the free energy in systems of finite size–are experimentally determined for the first time.

EDITORS' SUGGESTION

Violating the Weak Cosmic Censorship Conjecture in Four-Dimensional Anti–de Sitter Space

Toby Crisford and Jorge E. Santos

Phys. Rev. Lett. 118, 181101 (2017) - Published 2 May, 2017

Light could escape from highly curved regions embedded in four dimensional spacetimes of negative curvature, where gravitational forces are arbitrarily strong. This result provides a first possible counterexample to the conjecture that such singularities are hidden from view.

EDITORS' SUGGESTION

Transition from Collisional to Collisionless Regimes in Interpenetrating Plasma Flows on the National Ignition Facility

J. S. Ross et al.

Phys. Rev. Lett. 118, 185003 (2017) - Published 5 May, 2017

A transition from a Coulomb-collision-dominated regime to a collisionless-collective-scattering regime is observed at the NIF in plasmas with high Mach numbers.

EDITORS' SUGGESTION

Quantum Hall Spin Diode

J. P. Eisenstein, L. N. Pfeiffer, and K. W. West

Phys. Rev. Lett. 118, 186801 (2017) - Published 4 May, 2017

A bilayer two-dimensional electron system, known for its use as a magnetic tunnel junction, can also behave as a nearly ideal spin diode when the spins are antiparallel.

EDITORS' SUGGESTION

Strong Modulation of Spin Currents in Bilayer Graphene by Static and Fluctuating Proximity Exchange Fields

Simranjeet Singh, Jyoti Katoch, Tiancong Zhu, Keng-Yuan Meng, Tianyu Liu, Jack T. Brangham, Fengyuan Yang, Michael E. Flatté, and Roland K. Kawakami

Phys. Rev. Lett. 118, 187201 (2017) - Published 2 May, 2017

The spin current of graphene is modulated by coupling it to a ferromagnetic film. This allows the spin current to be adjusted with much lower magnetic fields that other methods.

LETTERS

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

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Matter-Wave Tractor Beams

Alexey A. Gorlach, Maxim A. Gorlach, Andrei V. Lavrinenko, and Andrey Novitsky

Phys. Rev. Lett. 118, 180401 (2017) - Published 4 May, 2017

Theory shows that the quantum-mechanical wave of a beam of particles can exert a pulling force on a small particle, just as other waves do.

Experimental Demonstration of Uncertainty Relations for the Triple Components of Angular Momentum

Wenchao Ma, Bin Chen, Ying Liu, Mengqi Wang, Xiangyu Ye, Fei Kong, Fazhan Shi, Shao-Ming Fei, and Jiangfeng Du

Phys. Rev. Lett. 118, 180402 (2017) - Published 4 May, 2017

EDITORS' SUGGESTION

Experimental Determination of Dynamical Lee-Yang Zeros

Kay Brandner, Ville F. Maisi, Jukka P. Pekola, Juan P. Garrahan, and Christian Flindt

Phys. Rev. Lett. 118, 180601 (2017) - Published 4 May, 2017

Lee-Yang zeros–complex singularities of the free energy in systems of finite size–are experimentally determined for the first time.

Gravitation and Astrophysics

EDITORS' SUGGESTION

Violating the Weak Cosmic Censorship Conjecture in Four-Dimensional Anti–de Sitter Space

Toby Crisford and Jorge E. Santos

Phys. Rev. Lett. 118, 181101 (2017) - Published 2 May, 2017

Constraints on the Dynamical Environments of Supermassive Black-Hole Binaries Using Pulsar-Timing Arrays

Stephen R. Taylor, Joseph Simon, and Laura Sampson

Phys. Rev. Lett. 118, 181102 (2017) - Published 3 May, 2017

Detecting Gravitational Wave Memory without Parent Signals

Lucy O. McNeill, Eric Thrane, and Paul D. Lasky

Phys. Rev. Lett. 118, 181103 (2017) - Published 4 May, 2017

New Probe of Departures from General Relativity Using Minkowski Functionals

Wenjuan Fang, Baojiu Li, and Gong-Bo Zhao

Phys. Rev. Lett. 118, 181301 (2017) - Published 2 May, 2017

Elementary Particles and Fields

Chiral Shock Waves

Srimoyee Sen and Naoki Yamamoto

Phys. Rev. Lett. 118, 181601 (2017) - Published 3 May, 2017

Gravity Amplitudes as Generalized Double Copies of Gauge-Theory Amplitudes

Zvi Bern, John Joseph Carrasco, Wei-Ming Chen, Henrik Johansson, and Radu Roiban

Phys. Rev. Lett. 118, 181602 (2017) - Published 5 May, 2017

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Observation of Five New Narrow $Ω_{c}^{0}$ States Decaying to $Ξ_{c}^{+} K^{-}$

R. Aaij et al. (LHCb Collaboration)

Phys. Rev. Lett. 118, 182001 (2017) - Published 2 May, 2017

The discovery of five new baryonic states at the Large Hadron Collider could shed light on the strong nuclear force.

Nuclear Physics

van der Waals Interactions in Hadron Resonance Gas: From Nuclear Matter to Lattice QCD

Volodymyr Vovchenko, Mark I. Gorenstein, and Horst Stoecker

Phys. Rev. Lett. 118, 182301 (2017) - Published 3 May, 2017

Atomic, Molecular, and Optical Physics

Electron-Nuclear Coupling through Autoionizing States after Strong-Field Excitation of $H_{2}$ Molecules

Yonghao Mi, Nicolas Camus, Lutz Fechner, Martin Laux, Robert Moshammer, and Thomas Pfeifer

Phys. Rev. Lett. 118, 183201 (2017) - Published 2 May, 2017

FEATURED IN PHYSICS

Cavity Cooling of Many Atoms

Mahdi Hosseini, Yiheng Duan, Kristin M. Beck, Yu-Ting Chen, and Vladan Vuletić

Phys. Rev. Lett. 118, 183601 (2017) - Published 1 May, 2017

A cavity-based method of cooling single atoms or other objects has now been used to cool multiple atoms simultaneously.

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Phase Shift in an Atom Interferometer due to Spacetime Curvature across its Wave Function

Peter Asenbaum, Chris Overstreet, Tim Kovachy, Daniel D. Brown, Jason M. Hogan, and Mark A. Kasevich

Phys. Rev. Lett. 118, 183602 (2017) - Published 1 May, 2017

The effect of the tidal force, which is directly related to the curvature of spacetime, on an individual particle’s wave function has been measured with an atom interferometer.

Generation of Counterpropagating Path-Entangled Photon Pairs in a Single Periodic Waveguide

Sina Saravi, Thomas Pertsch, and Frank Setzpfandt

Phys. Rev. Lett. 118, 183603 (2017) - Published 3 May, 2017

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, etc.

FEATURED IN PHYSICS

Holography of Wi-fi Radiation

Philipp M. Holl and Friedemann Reinhard

Phys. Rev. Lett. 118, 183901 (2017) - Published 5 May, 2017

The Wi-Fi signals that provide internet access can also produce images of the transmitter’s 3D surroundings, even through walls.

Return to the Origin as a Probe of Atomic Phase Coherence

Clément Hainaut, Isam Manai, Radu Chicireanu, Jean-François Clément, Samir Zemmouri, Jean Claude Garreau, Pascal Szriftgiser, Gabriel Lemarié, Nicolas Cherroret, and Dominique Delande

Phys. Rev. Lett. 118, 184101 (2017) - Published 5 May, 2017

Plasma and Beam Physics

Stimulated Emission of Fast Alfvén Waves within Magnetically Confined Fusion Plasmas

J. W. S. Cook, R. O. Dendy, and S. C. Chapman

Phys. Rev. Lett. 118, 185001 (2017) - Published 4 May, 2017

Observation of Oscillatory Radial Electric Field Relaxation in a Helical Plasma

J. A. Alonso, E. Sánchez, I. Calvo, J. L. Velasco, K. J. McCarthy, A. Chmyga, L. G. Eliseev, T. Estrada, R. Kleiber, L. I. Krupnik, A. V. Melnikov, P. Monreal, F. I. Parra, S. Perfilov, and A. I. Zhezhera (the TJ-II Team)

Phys. Rev. Lett. 118, 185002 (2017) - Published 5 May, 2017

EDITORS' SUGGESTION

Transition from Collisional to Collisionless Regimes in Interpenetrating Plasma Flows on the National Ignition Facility

J. S. Ross et al.

Phys. Rev. Lett. 118, 185003 (2017) - Published 5 May, 2017

A transition from a Coulomb-collision-dominated regime to a collisionless-collective-scattering regime is observed at the NIF in plasmas with high Mach numbers.

Condensed Matter: Structure, etc.

Scheme to Measure the Topological Number of a Chern Insulator from Quench Dynamics

Ce Wang, Pengfei Zhang, Xin Chen, Jinlong Yu, and Hui Zhai

Phys. Rev. Lett. 118, 185701 (2017) - Published 5 May, 2017

FEATURED IN PHYSICS

Facile Anhydrous Proton Transport on Hydroxyl Functionalized Graphane

Abhishek Bagusetty, Pabitra Choudhury, Wissam A. Saidi, Bridget Derksen, Elizabeth Gatto, and J. Karl Johnson

Phys. Rev. Lett. 118, 186101 (2017) - Published 3 May, 2017

A proposed graphene-based material could offer speedy transport of protons without the need for water.

Condensed Matter: Electronic Properties, etc.

Filling-Enforced Magnetic Dirac Semimetals in Two Dimensions

Steve M. Young and Benjamin J. Wieder

Phys. Rev. Lett. 118, 186401 (2017) - Published 4 May, 2017

EDITORS' SUGGESTION

Quantum Hall Spin Diode

J. P. Eisenstein, L. N. Pfeiffer, and K. W. West

Phys. Rev. Lett. 118, 186801 (2017) - Published 4 May, 2017

A bilayer two-dimensional electron system, known for its use as a magnetic tunnel junction, can also behave as a nearly ideal spin diode when the spins are antiparallel.

EDITORS' SUGGESTION

Strong Modulation of Spin Currents in Bilayer Graphene by Static and Fluctuating Proximity Exchange Fields

Simranjeet Singh, Jyoti Katoch, Tiancong Zhu, Keng-Yuan Meng, Tianyu Liu, Jack T. Brangham, Fengyuan Yang, Michael E. Flatté, and Roland K. Kawakami

Phys. Rev. Lett. 118, 187201 (2017) - Published 2 May, 2017

The spin current of graphene is modulated by coupling it to a ferromagnetic film. This allows the spin current to be adjusted with much lower magnetic fields that other methods.

New Easy-Plane $C P^{N - 1}$ Fixed Points

Jonathan D’Emidio and Ribhu K. Kaul

Phys. Rev. Lett. 118, 187202 (2017) - Published 3 May, 2017

Anomalous Thermal Conductivity and Magnetic Torque Response in the Honeycomb Magnet $α − {RuCl}_{3}$

Ian A. Leahy, Christopher A. Pocs, Peter E. Siegfried, David Graf, S.-H. Do, Kwang-Yong Choi, B. Normand, and Minhyea Lee

Phys. Rev. Lett. 118, 187203 (2017) - Published 5 May, 2017

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

Linking Particle Dynamics to Local Connectivity in Colloidal Gels

Jan Maarten van Doorn, Jochem Bronkhorst, Ruben Higler, Ties van de Laar, and Joris Sprakel

Phys. Rev. Lett. 118, 188001 (2017) - Published 1 May, 2017