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Preview: Recent Articles in Phys. Rev. Lett.

Recent Articles in Phys. Rev. Lett.

Recent articles in Physical Review Letters

Published: 2017-08-16T15:29:12-04:00


Determination of the Spin and Parity of the ${Z}_{c}(3900)$


Author(s): M. Ablikim et al. (BESIII Collaboration)

An analysis of electron-positron collision data has determined the spin and parity of a particle thought to consist of four quarks.

[Phys. Rev. Lett. 119, 072001] Published Wed Aug 16, 2017

Trapping of Molecular Oxygen together with Lithium Atoms


Author(s): Nitzan Akerman, Michael Karpov, Yair Segev, Natan Bibelnik, Julia Narevicius, and Edvardas Narevicius

We demonstrate simultaneous deceleration and trapping of a cold atomic and molecular mixture. This is the first step towards studies of cold atom-molecule collisions at low temperatures as well as application of sympathetic cooling. Both atoms and molecules are cooled in a supersonic expansion and a...

[Phys. Rev. Lett. 119, 073204] Published Wed Aug 16, 2017

Cutoff-Free Circuit Quantum Electrodynamics


Author(s): Moein Malekakhlagh, Alexandru Petrescu, and Hakan E. Türeci

Any quantum-confined electronic system coupled to the electromagnetic continuum is subject to radiative decay and renormalization of its energy levels. When coupled to a cavity, these quantities can be strongly modified with respect to their values in vacuum. Generally, this modification can be accu...

[Phys. Rev. Lett. 119, 073601] Published Wed Aug 16, 2017

Benchmark Experiment for Photoionized Plasma Emission from Accretion-Powered X-Ray Sources


Author(s): G. P. Loisel, J. E. Bailey, D. A. Liedahl, C. J. Fontes, T. R. Kallman, T. Nagayama, S. B. Hansen, G. A. Rochau, R. C. Mancini, and R. W. Lee

The interpretation of x-ray spectra emerging from x-ray binaries and active galactic nuclei accreted plasmas relies on complex physical models for radiation generation and transport in photoionized plasmas. These models have not been sufficiently experimentally validated. We have developed a highly ...

[Phys. Rev. Lett. 119, 075001] Published Wed Aug 16, 2017

Observation of Reverse Saturable Absorption of an X-ray Laser


Author(s): B. I. Cho, M. S. Cho, M. Kim, H.-K. Chung, B. Barbrel, K. Engelhorn, T. Burian, J. Chalupský, O. Ciricosta, G. L. Dakovski, V. Hájková, M. Holmes, L. Juha, J. Krzywinski, R. W. Lee, Chang Hee Nam, D. S. Rackstraw, S. Toleikis, J. J. Turner, S. M. Vinko, J. S. Wark, U. Zastrau, and P. A. Heimann

A nonlinear absorber in which the excited state absorption is larger than the ground state can undergo a process called reverse saturable absorption. It is a well-known phenomenon in laser physics in the optical regime, but is more difficult to generate in the x-ray regime, where fast nonradiative c...

[Phys. Rev. Lett. 119, 075002] Published Wed Aug 16, 2017

Melting and High $P\text{−}T$ Transitions of Hydrogen up to 300 GPa


Author(s): Chang-sheng Zha, Hanyu Liu, John S. Tse, and Russell J. Hemley

High $P\text{−}T$ Raman spectra of hydrogen in the vibron and lattice mode regions were measured up to 300 GPa and 900 K using externally heated diamond anvil cell techniques. A new melting line determined from the disappearance of lattice mode excitations was measured directly for the first time ab...

[Phys. Rev. Lett. 119, 075302] Published Wed Aug 16, 2017

Fixed Points of Wegner-Wilson Flows and Many-Body Localization


Author(s): David Pekker, Bryan K. Clark, Vadim Oganesyan, and Gil Refael

Many-body localization (MBL) is a phase of matter that is characterized by the absence of thermalization. Dynamical generation of a large number of local quantum numbers has been identified as one key characteristic of this phase, quite possibly the microscopic mechanism of breakdown of thermalizati...

[Phys. Rev. Lett. 119, 075701] Published Wed Aug 16, 2017

Two Universality Classes for the Many-Body Localization Transition


Author(s): Vedika Khemani, D. N. Sheng, and David A. Huse

We provide a systematic comparison of the many-body localization (MBL) transition in spin chains with nonrandom quasiperiodic versus random fields. We find evidence suggesting that these belong to two separate universality classes: the first dominated by “intrinsic” intrasample randomness, and the s...

[Phys. Rev. Lett. 119, 075702] Published Wed Aug 16, 2017

Spin Current Generation Using a Surface Acoustic Wave Generated via Spin-Rotation Coupling


Author(s): D. Kobayashi, T. Yoshikawa, M. Matsuo, R. Iguchi, S. Maekawa, E. Saitoh, and Y. Nozaki

We demonstrate the generation of alternating spin current (SC) via spin-rotation coupling (SRC) using a surface acoustic wave (SAW) in a Cu film. Ferromagnetic resonance caused by injecting SAWs was observed in a Ni-Fe film attached to a Cu film, with the resonance further found to be suppressed thr...

[Phys. Rev. Lett. 119, 077202] Published Wed Aug 16, 2017

Doubly Dressed Bosons: Exciton Polaritons in a Strong Terahertz Field


Author(s): B. Piętka, N. Bobrovska, D. Stephan, M. Teich, M. Król, S. Winnerl, A. Pashkin, R. Mirek, K. Lekenta, F. Morier-Genoud, H. Schneider, B. Deveaud, M. Helm, M. Matuszewski, and J. Szczytko

We demonstrate the existence of a novel quasiparticle, an exciton in a semiconductor doubly dressed with two photons of different wavelengths: a near infrared cavity photon and terahertz (THz) photon, with the THz coupling strength approaching the ultrastrong coupling regime. This quasiparticle is c...

[Phys. Rev. Lett. 119, 077403] Published Wed Aug 16, 2017

Fluctuating Elasticity Mode in Transient Molecular Networks


Author(s): Giovanni Nava, Marina Rossi, Silvia Biffi, Francesco Sciortino, and Tommaso Bellini

Transient molecular networks, a class of adaptive soft materials with remarkable application potential, display complex, and intriguing dynamic behavior. By performing dynamic light scattering on a wide angular range, we study the relaxation dynamics of a reversible network formed by DNA tetravalent...

[Phys. Rev. Lett. 119, 078002] Published Wed Aug 16, 2017

Continuous versus Arrested Spreading of Biofilms at Solid-Gas Interfaces: The Role of Surface Forces


Author(s): Sarah Trinschek, Karin John, Sigolène Lecuyer, and Uwe Thiele

We introduce and analyze a model for osmotically spreading bacterial colonies at solid-air interfaces that includes wetting phenomena, i.e., surface forces. The model is based on a hydrodynamic description for liquid suspensions which is supplemented by bioactive processes. We show that surface forc...

[Phys. Rev. Lett. 119, 078003] Published Wed Aug 16, 2017

Bridging Perturbative Expansions with Tensor Networks


Author(s): Laurens Vanderstraeten, Michaël Mariën, Jutho Haegeman, Norbert Schuch, Julien Vidal, and Frank Verstraete

We demonstrate that perturbative expansions for quantum many-body systems can be rephrased in terms of tensor networks, thereby providing a natural framework for interpolating perturbative expansions across a quantum phase transition. This approach leads to classes of tensor-network states parametri...

[Phys. Rev. Lett. 119, 070401] Published Tue Aug 15, 2017

Thermal Conductance of a Single-Electron Transistor


Author(s): B. Dutta, J. T. Peltonen, D. S. Antonenko, M. Meschke, M. A. Skvortsov, B. Kubala, J. König, C. B. Winkelmann, H. Courtois, and J. P. Pekola

A single-electron transistor carries more heat than that predicted by the Wiedemann-Franz law linking thermal and electrical conductivities.

[Phys. Rev. Lett. 119, 077701] Published Tue Aug 15, 2017

Mass–Angular-Momentum Inequality For Black Ring Spacetimes


Author(s): Aghil Alaee, Marcus Khuri, and Hari Kunduri

The inequality ${m}^{3}≥27π/4|{\mathcal{J}}_{2}||{\mathcal{J}}_{1}−{\mathcal{J}}_{2}|$ relating total mass and angular momenta is established for (possibly dynamical) spacetimes admitting black holes of ring (${S}^{1}×{S}^{2}$) topology. This inequality is shown to be sharp in the sense that it is s...

[Phys. Rev. Lett. 119, 071101] Published Mon Aug 14, 2017

Gluing Ladder Feynman Diagrams into Fishnets


Author(s): Benjamin Basso and Lance J. Dixon

We use integrability at weak coupling to compute fishnet diagrams for four-point correlation functions in planar ${ϕ}^{4}$ theory. The results are always multilinear combinations of ladder integrals, which are in turn built out of classical polylogarithms. The Steinmann relations provide a powerful ...

[Phys. Rev. Lett. 119, 071601] Published Mon Aug 14, 2017

Rotationally Cold ${\mathrm{OH}}^{−}$ Ions in the Cryogenic Electrostatic Ion-Beam Storage Ring DESIREE


Author(s): H. T. Schmidt, G. Eklund, K. C. Chartkunchand, E. K. Anderson, M. Kamińska, N. de Ruette, R. D. Thomas, M. K. Kristiansson, M. Gatchell, P. Reinhed, S. Rosén, A. Simonsson, A. Källberg, P. Löfgren, S. Mannervik, H. Zettergren, and H. Cederquist

Two research teams have created the coldest molecular beams ever, putting molecules in their ground states of rotation and providing improved experimental stand-ins for interstellar gas clouds.

[Phys. Rev. Lett. 119, 073001] Published Mon Aug 14, 2017

Equilibration Dynamics of Strongly Interacting Bosons in 2D Lattices with Disorder


Author(s): Mi Yan, Hoi-Yin Hui, Marcos Rigol, and V. W. Scarola

Motivated by recent optical lattice experiments [J.-y. Choi et al., Science 352, 1547 (2016)], we study the dynamics of strongly interacting bosons in the presence of disorder in two dimensions. We show that Gutzwiller mean-field theory (GMFT) captures the main experimental observations, which are ...

[Phys. Rev. Lett. 119, 073002] Published Mon Aug 14, 2017

Revealing the Sub-Barrier Phase using a Spatiotemporal Interferometer with Orthogonal Two-Color Laser Fields of Comparable Intensity


Author(s): Meng Han, Peipei Ge, Yun Shao, Ming-Ming Liu, Yongkai Deng, Chengyin Wu, Qihuang Gong, and Yunquan Liu

We measure photoelectron momentum distributions of Ar atoms in orthogonally polarized two-color laser fields with comparable intensities. The synthesized laser field is used to manipulate the oscillating tunneling barrier and the subsequent motion of electrons onto two spatial dimensions. The subcyc...

[Phys. Rev. Lett. 119, 073201] Published Mon Aug 14, 2017

Three-Dimensional Molecular Alignment Inside Helium Nanodroplets


Author(s): Adam S. Chatterley, Benjamin Shepperson, and Henrik Stapelfeldt

We demonstrate 3D spatial alignment of 3,5-dichloroiodobenzene molecules embedded in helium nanodroplets using nonresonant elliptically polarized 160 ps laser pulses at a 1 kHz repetition rate. Through Coulomb explosion imaging and ion-ion covariance mapping, the 3D alignment is characterized and fo...

[Phys. Rev. Lett. 119, 073202] Published Mon Aug 14, 2017

Observation and Control of Laser-Enabled Auger Decay


Author(s): D. Iablonskyi, K. Ueda, K. L. Ishikawa, A. S. Kheifets, P. Carpeggiani, M. Reduzzi, H. Ahmadi, A. Comby, G. Sansone, T. Csizmadia, S. Kuehn, E. Ovcharenko, T. Mazza, M. Meyer, A. Fischer, C. Callegari, O. Plekan, P. Finetti, E. Allaria, E. Ferrari, E. Roussel, D. Gauthier, L. Giannessi, and K. C. Prince

Single-photon laser-enabled Auger decay (spLEAD) is predicted theoretically [B. Cooper and V. Averbukh, Phys. Rev. Lett. 111, 083004 (2013)] and here we report its first experimental observation in neon. Using coherent, bichromatic free-electron laser pulses, we detect the process and coherently con...

[Phys. Rev. Lett. 119, 073203] Published Mon Aug 14, 2017

Stress Transmission and Failure in Disordered Porous Media


Author(s): Hadrien Laubie, Farhang Radjai, Roland Pellenq, and Franz-Josef Ulm

Simulations of porous materials exhibit internal stress patterns like those in granular materials, despite the fact that these two systems are practically “negative images” of each other.

[Phys. Rev. Lett. 119, 075501] Published Mon Aug 14, 2017

Temperature-Independent Nuclear Quantum Effects on the Structure of Water


Author(s): Kyung Hwan Kim, Harshad Pathak, Alexander Späh, Fivos Perakis, Daniel Mariedahl, Jonas A. Sellberg, Tetsuo Katayama, Yoshihisa Harada, Hirohito Ogasawara, Lars G. M. Pettersson, and Anders Nilsson

Nuclear quantum effects (NQEs) have a significant influence on the hydrogen bonds in water and aqueous solutions and have thus been the topic of extensive studies. However, the microscopic origin and the corresponding temperature dependence of NQEs have been elusive and still remain the subject of o...

[Phys. Rev. Lett. 119, 075502] Published Mon Aug 14, 2017

Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in $({\mathrm{La}}_{1−x}{\mathrm{Sr}}_{x}{\mathrm{MnO}}_{3})/({\mathrm{SrIrO}}_{3})$ Superlattices


Author(s): Di Yi, Charles L. Flint, Purnima P. Balakrishnan, Krishnamurthy Mahalingam, Brittany Urwin, Arturas Vailionis, Alpha T. N’Diaye, Padraic Shafer, Elke Arenholz, Yongseong Choi, Kevin H. Stone, Jiun-Haw Chu, Brandon M. Howe, Jian Liu, Ian R. Fisher, and Yuri Suzuki

Perpendicular magnetic anisotropy (PMA) plays a critical role in the development of spintronics, thereby demanding new strategies to control PMA. Here we demonstrate a conceptually new type of interface induced PMA that is controlled by oxygen octahedral rotation. In superlattices comprised of ${\ma...

[Phys. Rev. Lett. 119, 077201] Published Mon Aug 14, 2017

Wetting Transitions Displayed by Persistent Active Particles


Author(s): Néstor Sepúlveda and Rodrigo Soto

A lattice model for active matter is studied numerically, showing that it displays wetting transitions between three distinctive phases when in contact with an impenetrable wall. The particles in the model move persistently, tumbling with a small rate $α$, and interact via exclusion volume only. Whe...

[Phys. Rev. Lett. 119, 078001] Published Mon Aug 14, 2017

Comment on “Finding the ${0}^{−−}$ Glueball”


Author(s): Alexandr Pimikov, Hee-Jung Lee, and Nikolai Kochelev
[Phys. Rev. Lett. 119, 079101] Published Mon Aug 14, 2017

Adiabatic Theorem for Quantum Spin Systems


Author(s): S. Bachmann, W. De Roeck, and M. Fraas

The first proof of the quantum adiabatic theorem was given as early as 1928. Today, this theorem is increasingly applied in a many-body context, e.g., in quantum annealing and in studies of topological properties of matter. In this setup, the rate of variation $ϵ$ of local terms is indeed small comp...

[Phys. Rev. Lett. 119, 060201] Published Fri Aug 11, 2017

Driven Anisotropic Diffusion at Boundaries: Noise Rectification and Particle Sorting


Author(s): Stefano Bo and Ralf Eichhorn

We study the diffusive dynamics of a Brownian particle in the proximity of a flat surface under nonequilibrium conditions, which are created by an anisotropic thermal environment with different temperatures being active along distinct spatial directions. By presenting the exact time-dependent soluti...

[Phys. Rev. Lett. 119, 060603] Published Fri Aug 11, 2017

Solutions to Yang-Mills Equations on Four-Dimensional de Sitter Space


Author(s): Tatiana A. Ivanova, Olaf Lechtenfeld, and Alexander D. Popov

We consider pure SU(2) Yang-Mills theory on four-dimensional de Sitter space ${\mathrm{dS}}_{4}$ and construct a smooth and spatially homogeneous magnetic solution to the Yang-Mills equations. Slicing ${\mathrm{dS}}_{4}$ as $\mathbb{R}×{S}^{3}$, via an SU(2)-equivariant ansatz, we reduce the Yang-Mi...

[Phys. Rev. Lett. 119, 061601] Published Fri Aug 11, 2017

Strong Evidence for Nucleon Resonances near 1900 MeV


Author(s): A. V. Anisovich, V. Burkert, M. Hadžimehmedović, D. G. Ireland, E. Klempt, V. A. Nikonov, R. Omerović, H. Osmanović, A. V. Sarantsev, J. Stahov, A. Švarc, and U. Thoma

Data on the reaction $γp→{K}^{+}\mathrm{Λ}$ from the CLAS experiments are used to derive the leading multipoles, ${E}_{0+}$, ${M}_{1−}$, ${E}_{1+}$, and ${M}_{1+}$, from the production threshold to 2180 MeV in 24 slices of the invariant mass. The four multipoles are determined without any constraint...

[Phys. Rev. Lett. 119, 062004] Published Fri Aug 11, 2017

Quenching of Hadron Spectra in Heavy Ion Collisions at the LHC


Author(s): François Arleo

The ${p}_{⊥}$ dependence of the nuclear modification factor ${R}_{AA}$ measured in PbPb collisions at the LHC exhibits a universal shape, which can be very well reproduced in a simple energy loss model based on the Baier-Dokshitzer-Mueller-Peigné-Schiff medium-induced gluon spectrum. The scaling is ...

[Phys. Rev. Lett. 119, 062302] Published Fri Aug 11, 2017

Global Method for Electron Correlation


Author(s): Mario Piris

The current work presents a new single-reference method for capturing at the same time the static and dynamic electron correlation. The starting point is a determinant wave function formed with natural orbitals obtained from a new interacting-pair model. The latter leads to a natural orbital functio...

[Phys. Rev. Lett. 119, 063002] Published Fri Aug 11, 2017

Spontaneous Polariton Currents in Periodic Lateral Chains


Author(s): A. V. Nalitov, T. C. H. Liew, A. V. Kavokin, B. L. Altshuler, and Y. G. Rubo

We predict spontaneous generation of superfluid polariton currents in planar microcavities with lateral periodic modulation of both the potential and decay rate. A spontaneous breaking of spatial inversion symmetry of a polariton condensate emerges at a critical pumping, and the current direction is...

[Phys. Rev. Lett. 119, 067406] Published Fri Aug 11, 2017

Equation of State and Duration to Radiation Domination after Inflation


Author(s): Kaloian D. Lozanov and Mustafa A. Amin

We calculate the equation of state after inflation and provide an upper bound on the duration before radiation domination by taking the nonlinear dynamics of the fragmented inflaton field into account. A broad class of single-field inflationary models with observationally consistent flattening of th...

[Phys. Rev. Lett. 119, 061301] Published Thu Aug 10, 2017

Proton-Proton Fusion and Tritium $β$ Decay from Lattice Quantum Chromodynamics


Author(s): Martin J. Savage, Phiala E. Shanahan, Brian C. Tiburzi, Michael L. Wagman, Frank Winter, Silas R. Beane, Emmanuel Chang, Zohreh Davoudi, William Detmold, and Kostas Orginos (NPLQCD Collaboration)

A quark-based model called lattice QCD provides theoretical predictions for two weak-force-driven reactions—proton fusion and tritium decay.

[Phys. Rev. Lett. 119, 062002] Published Thu Aug 10, 2017

Isotensor Axial Polarizability and Lattice QCD Input for Nuclear Double-$β$ Decay Phenomenology


Author(s): Phiala E. Shanahan, Brian C. Tiburzi, Michael L. Wagman, Frank Winter, Emmanuel Chang, Zohreh Davoudi, William Detmold, Kostas Orginos, and Martin J. Savage (NPLQCD Collaboration)

The potential importance of short-distance nuclear effects in double-$β$ decay is assessed using a lattice QCD calculation of the $nn→pp$ transition and effective field theory methods. At the unphysical quark masses used in the numerical computation, these effects, encoded in the isotensor axial pol...

[Phys. Rev. Lett. 119, 062003] Published Thu Aug 10, 2017

Dijet imbalance measurements in $\mathrm{Au}+\mathrm{Au}$ and $pp$ collisions at $\sqrt{{s}_{NN}}=200\text{ }\text{ }\mathrm{GeV}$ at STAR


Author(s): L. Adamczyk et al. (STAR Collaboration)

Analysis of the energy imbalance of dijet pairs in Au-Au collisions at RHIC shows how jets lose energy as they propagate through a quark-gluon plasma.

[Phys. Rev. Lett. 119, 062301] Published Thu Aug 10, 2017

Superfluid Density of Neutrons in the Inner Crust of Neutron Stars: New Life for Pulsar Glitch Models


Author(s): Gentaro Watanabe and C. J. Pethick

Calculations of the effects of band structure on the neutron superfluid density in the crust of neutron stars made under the assumption that the effects of pairing are small [N. Chamel, Phys. Rev. C 85, 035801 (2012)] lead to moments of inertia of superfluid neutrons so small that the crust alone is...

[Phys. Rev. Lett. 119, 062701] Published Thu Aug 10, 2017

Scaling Fixed-Field Alternating-Gradient Accelerators with Reverse Bend and Spiral Edge Angle


Author(s): Shinji Machida

A novel scaling type of fixed-field alternating-gradient (FFAG) accelerator is proposed that solves the major problems of conventional scaling FFAGs. This scaling FFAG accelerator combines reverse bending magnets of the radial sector type and a spiral edge angle of the spiral sector type to ensure s...

[Phys. Rev. Lett. 119, 064802] Published Thu Aug 10, 2017

Continuum Lowering and Fermi-Surface Rising in Strongly Coupled and Degenerate Plasmas


Author(s): S. X. Hu (胡素兴)

Continuum lowering is a well known and important physics concept that describes the ionization potential depression (IPD) in plasmas caused by thermal- or pressure-induced ionization of outer-shell electrons. The existing IPD models are often used to characterize plasma conditions and to gauge opaci...

[Phys. Rev. Lett. 119, 065001] Published Thu Aug 10, 2017

Determination of the Density and Temperature Dependence of the Shear Viscosity of a Unitary Fermi Gas Based on Hydrodynamic Flow


Author(s): Marcus Bluhm, Jiaxun Hou, and Thomas Schäfer

We determine the shear viscosity of the ultracold Fermi gas at unitarity in the normal phase using hydrodynamic expansion data. The analysis is based on a generalized fluid dynamic framework which ensures a smooth transition between the fluid dynamic core of the cloud and the ballistic corona. We us...

[Phys. Rev. Lett. 119, 065302] Published Thu Aug 10, 2017

Linking Spatial Distributions of Potential and Current in Viscous Electronics


Author(s): Gregory Falkovich and Leonid Levitov

Viscous electronics is an emerging field dealing with systems in which strongly interacting electrons behave as a fluid. Electron viscous flows are governed by a nonlocal current-field relation which renders the spatial patterns of the current and electric field strikingly dissimilar. Notably, drive...

[Phys. Rev. Lett. 119, 066601] Published Thu Aug 10, 2017

Quantum Coherent Multielectron Processes in an Atomic Scale Contact


Author(s): Peter-Jan Peters, Fei Xu, Kristen Kaasbjerg, Gianluca Rastelli, Wolfgang Belzig, and Richard Berndt

The light emission from a scanning tunneling microscope operated on a Ag(111) surface at 6 K is analyzed from low conductances to values approaching the conductance quantum. Optical spectra recorded at sample voltages $V$ reveal emission with photon energies $hν>2eV$. A model of electrons interac...

[Phys. Rev. Lett. 119, 066803] Published Thu Aug 10, 2017

Metagratings: Beyond the Limits of Graded Metasurfaces for Wave Front Control


Author(s): Younes Ra’di, Dimitrios L. Sounas, and Andrea Alù

Light could be steered in any direction using specially designed periodic gratings that have metamaterial inclusions, according to predictions.

[Phys. Rev. Lett. 119, 067404] Published Thu Aug 10, 2017

Symmetry-Breaking Supercollisions in Landau-Quantized Graphene


Author(s): Florian Wendler, Martin Mittendorff, Jacob C. König-Otto, Samuel Brem, Claire Berger, Walter A. de Heer, Roman Böttger, Harald Schneider, Manfred Helm, Stephan Winnerl, and Ermin Malic

Recent pump-probe experiments performed on graphene in a perpendicular magnetic field have revealed carrier relaxation times ranging from picoseconds to nanoseconds depending on the quality of the sample. To explain this surprising behavior, we propose a novel symmetry-breaking defect-assisted relax...

[Phys. Rev. Lett. 119, 067405] Published Thu Aug 10, 2017

Room-Temperature Spin Polariton Diode Laser


Author(s): Aniruddha Bhattacharya, Md Zunaid Baten, Ivan Iorsh, Thomas Frost, Alexey Kavokin, and Pallab Bhattacharya

A spin-polarized laser offers inherent control of the output circular polarization. We have investigated the output polarization characteristics of a bulk GaN-based microcavity polariton diode laser at room temperature with electrical injection of spin-polarized electrons via a $\mathrm{FeCo}/\mathr...

[Phys. Rev. Lett. 119, 067701] Published Thu Aug 10, 2017

Determining the Gaussian Modulus and Edge Properties of 2D Materials: From Graphene to Lipid Bilayers


Author(s): Matthew Zelisko, Fatemeh Ahmadpoor, Huajian Gao, and Pradeep Sharma

The dominant deformation behavior of two-dimensional materials (bending) is primarily governed by just two parameters: bending rigidity and the Gaussian modulus. These properties also set the energy scale for various important physical and biological processes such as pore formation, cell fission an...

[Phys. Rev. Lett. 119, 068002] Published Thu Aug 10, 2017

Helical Locomotion in a Granular Medium


Author(s): Baptiste Darbois Texier, Alejandro Ibarra, and Francisco Melo

The physical mechanisms that bring about the propulsion of a rotating helix in a granular medium are considered. A propulsive motion along the axis of the rotating helix is induced by both symmetry breaking due to the helical shape, and the anisotropic frictional forces undergone by all segments of ...

[Phys. Rev. Lett. 119, 068003] Published Thu Aug 10, 2017

Erratum: Probing the Electronic Structure of the Hemoglobin Active Center in Physiological Solutions [Phys. Rev. Lett. 102, 068103 (2009)]


Author(s): Emad F. Aziz, Niklas Ottosson, Sébastien Bonhommeau, Nora Bergmann, Wolfgang Eberhardt, and Majed Chergui
[Phys. Rev. Lett. 119, 069902] Published Thu Aug 10, 2017

Degeneracy-Preserving Quantum Nondemolition Measurement of Parity-Type Observables for Cat Qubits


Author(s): Joachim Cohen, W. Clarke Smith, Michel H. Devoret, and Mazyar Mirrahimi

A central requirement for any quantum error correction scheme is the ability to perform quantum nondemolition measurements of an error syndrome, corresponding to a special symmetry property of the encoding scheme. It is in particular important that such a measurement does not introduce extra error m...

[Phys. Rev. Lett. 119, 060503] Published Wed Aug 09, 2017

Disorder-Driven Density and Spin Self-Ordering of a Bose-Einstein Condensate in a Cavity


Author(s): Farokh Mivehvar, Francesco Piazza, and Helmut Ritsch

We study spatial spin and density self-ordering of a two-component Bose-Einstein condensate via collective Raman scattering into a linear cavity mode. The onset of the Dicke superradiance phase transition is marked by a simultaneous appearance of a crystalline density order and a spin-wave order. Th...

[Phys. Rev. Lett. 119, 063602] Published Wed Aug 09, 2017

Bifurcation Dynamics of a Particle-Encapsulating Droplet in Shear Flow


Author(s): Lailai Zhu and François Gallaire

To understand the behavior of composite fluid particles such as nucleated cells and double emulsions in flow, we study a finite-size particle encapsulated in a deforming droplet under shear flow as a model system. In addition to its concentric particle-droplet configuration, we numerically explore o...

[Phys. Rev. Lett. 119, 064502] Published Wed Aug 09, 2017

Femtosecond Probing of Plasma Wakefields and Observation of the Plasma Wake Reversal Using a Relativistic Electron Bunch


Author(s): C. J. Zhang, J. F. Hua, Y. Wan, C.-H. Pai, B. Guo, J. Zhang, Y. Ma, F. Li, Y. P. Wu, H.-H. Chu, Y. Q. Gu, X. L. Xu, W. B. Mori, C. Joshi, J. Wang, and W. Lu

The electric-field structure in plasma wakefield accelerators has been detected experimentally with femtosecond resolution for the first time.

[Phys. Rev. Lett. 119, 064801] Published Wed Aug 09, 2017

Nanosecond X-Ray Photon Correlation Spectroscopy on Magnetic Skyrmions


Author(s): M. H. Seaberg, B. Holladay, J. C. T. Lee, M. Sikorski, A. H. Reid, S. A. Montoya, G. L. Dakovski, J. D. Koralek, G. Coslovich, S. Moeller, W. F. Schlotter, R. Streubel, S. D. Kevan, P. Fischer, E. E. Fullerton, J. L. Turner, F.-J. Decker, S. K. Sinha, S. Roy, and J. J. Turner

A new x-ray spectroscopy technique can measure magnetic fluctuations in vortex-like structures called Skyrmions with nanosecond resolution.

[Phys. Rev. Lett. 119, 067403] Published Wed Aug 09, 2017

Quantum State Transfer from a Single Photon to a Distant Quantum-Dot Electron Spin


Author(s): Yu He, Yu-Ming He, Yu-Jia Wei, Xiao Jiang, Kai Chen, Chao-Yang Lu, Jian-Wei Pan, Christian Schneider, Martin Kamp, and Sven Höfling

Quantum state transfer from flying photons to stationary matter qubits is an important element in the realization of quantum networks. Self-assembled semiconductor quantum dots provide a promising solid-state platform hosting both single photon and spin, with an inherent light-matter interface. Here...

[Phys. Rev. Lett. 119, 060501] Published Tue Aug 08, 2017

Simple Atomic Quantum Memory Suitable for Semiconductor Quantum Dot Single Photons


Author(s): Janik Wolters, Gianni Buser, Andrew Horsley, Lucas Béguin, Andreas Jöckel, Jan-Philipp Jahn, Richard J. Warburton, and Philipp Treutlein

Quantum memories matched to single photon sources will form an important cornerstone of future quantum network technology. We demonstrate such a memory in warm Rb vapor with on-demand storage and retrieval, based on electromagnetically induced transparency. With an acceptance bandwidth of $δf=0.66\t...

[Phys. Rev. Lett. 119, 060502] Published Tue Aug 08, 2017

Exact Extremal Statistics in the Classical 1D Coulomb Gas


Author(s): Abhishek Dhar, Anupam Kundu, Satya N. Majumdar, Sanjib Sabhapandit, and Grégory Schehr

We consider a one-dimensional classical Coulomb gas of $N$-like charges in a harmonic potential—also known as the one-dimensional one-component plasma. We compute, analytically, the probability distribution of the position ${x}_{\mathrm{max}}$ of the rightmost charge in the limit of large $N$. We sh...

[Phys. Rev. Lett. 119, 060601] Published Tue Aug 08, 2017

Observing Power-Law Dynamics of Position-Velocity Correlation in Anomalous Diffusion


Author(s): Gadi Afek, Jonathan Coslovsky, Arnaud Courvoisier, Oz Livneh, and Nir Davidson

In this Letter, we present a measurement of the phase-space density distribution (PSDD) of ultracold $^{87}\mathrm{Rb}$ atoms performing 1D anomalous diffusion. The PSDD is imaged using a direct tomographic method based on Raman velocity selection. It reveals that the position-velocity correlation f...

[Phys. Rev. Lett. 119, 060602] Published Tue Aug 08, 2017

Fourth Exception in the Calculation of Relic Abundances


Author(s): Raffaele Tito D’Agnolo, Duccio Pappadopulo, and Joshua T. Ruderman

A proposal for a new mechanism of dark matter production suggests that the abundance of dark matter may be set by its inelastic scattering rate, instead of its annihilation rate.

[Phys. Rev. Lett. 119, 061102] Published Tue Aug 08, 2017

Observation of the Decays ${\mathrm{Λ}}_{b}^{0}→{χ}_{c1}p{K}^{−}$ and ${\mathrm{Λ}}_{b}^{0}→{χ}_{c2}p{K}^{−}$


Author(s): R. Aaij et al. (LHCb Collaboration)

The first observation of the decays ${\mathrm{Λ}}_{b}^{0}→{χ}_{c1}p{K}^{−}$ and ${\mathrm{Λ}}_{b}^{0}→{χ}_{c2}p{K}^{−}$ is reported using a data sample corresponding to an integrated luminosity of $3.0\text{ }\text{ }{\mathrm{fb}}^{−1}$, collected by the LHCb experiment in $pp$ collisions at center-...

[Phys. Rev. Lett. 119, 062001] Published Tue Aug 08, 2017

Study of Nuclear Clustering from an Ab Initio Perspective


Author(s): Konstantinos Kravvaris and Alexander Volya

We put forward a new ab initio approach that seamlessly bridges the structure, clustering, and reactions aspects of the nuclear quantum many-body problem. The configuration interaction technique combined with the resonating group method based on a harmonic oscillator basis allows us to treat the rea...

[Phys. Rev. Lett. 119, 062501] Published Tue Aug 08, 2017

Unraveling the Structure of Ultracold Mesoscopic Collinear Molecular Ions


Author(s): J. M. Schurer, A. Negretti, and P. Schmelcher

We present an in-depth many-body investigation of the so-called mesoscopic molecular ions that can buildup when an ion is immersed into an atomic Bose-Einstein condensate in one dimension. To this end, we employ the multilayer multiconfiguration time-dependent Hartree method for mixtures of ultracol...

[Phys. Rev. Lett. 119, 063001] Published Tue Aug 08, 2017

Helicity-Selective Enhancement and Polarization Control of Attosecond High Harmonic Waveforms Driven by Bichromatic Circularly Polarized Laser Fields


Author(s): Kevin M. Dorney, Jennifer L. Ellis, Carlos Hernández-García, Daniel D. Hickstein, Christopher A. Mancuso, Nathan Brooks, Tingting Fan, Guangyu Fan, Dmitriy Zusin, Christian Gentry, Patrik Grychtol, Henry C. Kapteyn, and Margaret M. Murnane

High harmonics driven by two-color counterrotating circularly polarized laser fields are a unique source of bright, circularly polarized, extreme ultraviolet, and soft x-ray beams, where the individual harmonics themselves are completely circularly polarized. Here, we demonstrate the ability to pref...

[Phys. Rev. Lett. 119, 063201] Published Tue Aug 08, 2017

Transfer of Phase Information between Microwave and Optical Fields via an Electron Spin


Author(s): Ignas Lekavicius, D. Andrew Golter, Thein Oo, and Hailin Wang

We demonstrate the coherent coupling and the resulting transfer of phase information between microwave and optical fields in a single nitrogen vacancy center in diamond. The relative phase of two microwave fields is encoded in a coherent superposition spin state. This phase information is then retri...

[Phys. Rev. Lett. 119, 063601] Published Tue Aug 08, 2017

Probing Electron Spin Resonance in Monolayer Graphene


Author(s): T. J. Lyon, J. Sichau, A. Dorn, A. Centeno, A. Pesquera, A. Zurutuza, and R. H. Blick

Electron spin resonance experiments demonstrate that graphene possesses an intrinsic spin-orbit coupling.

[Phys. Rev. Lett. 119, 066802] Published Tue Aug 08, 2017

Multiply Quantized Vortices in Fermionic Superfluids: Angular Momentum, Unpaired Fermions, and Spectral Asymmetry


Author(s): Abhinav Prem, Sergej Moroz, Victor Gurarie, and Leo Radzihovsky

We compute the orbital angular momentum ${L}_{z}$ of an $s$-wave paired superfluid in the presence of an axisymmetric multiply quantized vortex. For vortices with a winding number $|k|>1$, we find that in the weak-pairing BCS regime, ${L}_{z}$ is significantly reduced from its value $ℏNk/2$ in th...

[Phys. Rev. Lett. 119, 067003] Published Tue Aug 08, 2017

How Correlated is the $\mathrm{FeSe}/{\mathrm{SrTiO}}_{3}$ System?


Author(s): Subhasish Mandal, Peng Zhang, Sohrab Ismail-Beigi, and K. Haule

Recent observation of $∼10$ times higher critical temperature in a FeSe monolayer compared with its bulk phase has drawn a great deal of attention because the electronic structure in the monolayer phase appears to be different than bulk FeSe. Using a combination of density functional theory and dyna...

[Phys. Rev. Lett. 119, 067004] Published Tue Aug 08, 2017

Raman Scattering from Higgs Mode Oscillations in the Two-Dimensional Antiferromagnet ${\mathrm{Ca}}_{2}{\mathrm{RuO}}_{4}$


Author(s): Sofia-Michaela Souliou, Jiří Chaloupka, Giniyat Khaliullin, Gihun Ryu, Anil Jain, B. J. Kim, Matthieu Le Tacon, and Bernhard Keimer

We present and analyze Raman spectra of the Mott insulator ${\mathrm{Ca}}_{2}{\mathrm{RuO}}_{4}$, whose quasi-two-dimensional antiferromagnetic order has been described as a condensate of low-lying spin-orbit excitons with angular momentum ${J}_{\text{eff}}=1$. In the ${A}_{g}$ polarization geometry...

[Phys. Rev. Lett. 119, 067201] Published Tue Aug 08, 2017

Spin Order and Phase Transitions in Chains of Polariton Condensates


Author(s): H. Ohadi, A. J. Ramsay, H. Sigurdsson, Y. del Valle-Inclan Redondo, S. I. Tsintzos, Z. Hatzopoulos, T. C. H. Liew, I. A. Shelykh, Y. G. Rubo, P. G. Savvidis, and J. J. Baumberg

We demonstrate that multiply coupled spinor polariton condensates can be optically tuned through a sequence of spin-ordered phases by changing the coupling strength between nearest neighbors. For closed four-condensate chains these phases span from ferromagnetic (FM) to antiferromagnetic (AFM), sepa...

[Phys. Rev. Lett. 119, 067401] Published Tue Aug 08, 2017

Large Bulk Photovoltaic Effect and Spontaneous Polarization of Single-Layer Monochalcogenides


Author(s): Tonatiuh Rangel, Benjamin M. Fregoso, Bernardo S. Mendoza, Takahiro Morimoto, Joel E. Moore, and Jeffrey B. Neaton

We use a first-principles density functional theory approach to calculate the shift current and linear absorption of uniformly illuminated single-layer Ge and Sn monochalcogenides. We predict strong absorption in the visible spectrum and a large effective three-dimensional shift current ($∼100\text{...

[Phys. Rev. Lett. 119, 067402] Published Tue Aug 08, 2017

Hydrodynamics Defines the Stable Swimming Direction of Spherical Squirmers in a Nematic Liquid Crystal


Author(s): J. S. Lintuvuori, A. Würger, and K. Stratford

We present a study of the hydrodynamics of an active particle—a model squirmer—in an environment with a broken rotational symmetry: a nematic liquid crystal. By combining simulations with analytic calculations, we show that the hydrodynamic coupling between the squirmer flow field and liquid crystal...

[Phys. Rev. Lett. 119, 068001] Published Tue Aug 08, 2017

Triggering Processes in Rock Fracture


Author(s): Jörn Davidsen, Grzegorz Kwiatek, Elli-Maria Charalampidou, Thomas Goebel, Sergei Stanchits, Marc Rück, and Georg Dresen

We study triggering processes in triaxial compression experiments under a constant displacement rate on sandstone and granite samples using spatially located acoustic emission events and their focal mechanisms. We present strong evidence that event-event triggering plays an important role in the pre...

[Phys. Rev. Lett. 119, 068501] Published Tue Aug 08, 2017

Comment on “Self-Referenced Coherent Diffraction X-Ray Movie of Ångstrom- and Femtosecond-Scale Atomic Motion”


Author(s): Kochise Bennett, Markus Kowalewski, and Shaul Mukamel
[Phys. Rev. Lett. 119, 069301] Published Tue Aug 08, 2017

Glownia et al. Reply:


Author(s): J. M. Glownia, A. Natan, J. P. Cryan, R. Hartsock, M. Kozina, M. P. Minitti, S. Nelson, J. Robinson, T. Sato, T. van Driel, G. Welch, C. Weninger, D. Zhu, and P. H. Bucksbaum
[Phys. Rev. Lett. 119, 069302] Published Tue Aug 08, 2017

Comment on “Ortho-Para-Dependent Pressure Effects Observed in the Near Infrared Band of Acetylene by Dual-Comb Spectroscopy”


Author(s): Jean-Michel Hartmann and Ha Tran
[Phys. Rev. Lett. 119, 069401] Published Tue Aug 08, 2017

Iwakuni et al. Reply:


Author(s): Kana Iwakuni, Sho Okubo, Koichi M. T. Yamada, Hajime Inaba, Atsushi Onae, Feng-Lei Hong, and Hiroyuki Sasada
[Phys. Rev. Lett. 119, 069402] Published Tue Aug 08, 2017

Erratum: Role of Tensorial Electronic Friction in Energy Transfer at Metal Surfaces [Phys. Rev. Lett. 116, 217601 (2016)]


Author(s): Mikhail Askerka, Reinhard J. Maurer, Victor S. Batista, and John C. Tully
[Phys. Rev. Lett. 119, 069901] Published Tue Aug 08, 2017

Primordial Black Holes and $r$-Process Nucleosynthesis


Author(s): George M. Fuller, Alexander Kusenko, and Volodymyr Takhistov

A dramatic scenario in which a compact black hole eats a spinning neutron star from inside might explain a nearby galaxy’s unexpectedly high abundance of heavy elements.

[Phys. Rev. Lett. 119, 061101] Published Mon Aug 07, 2017

Dark Matter Decay between Phase Transitions at the Weak Scale


Author(s): Michael J. Baker and Joachim Kopp

We propose a new alternative to the weakly interacting massive particle paradigm for dark matter. Rather than being determined by thermal freeze-out, the dark matter abundance in this scenario is set by dark matter decay, which is allowed for a limited amount of time just before the electroweak phas...

[Phys. Rev. Lett. 119, 061801] Published Mon Aug 07, 2017

Confined Rayleigh-Bénard, Rotating Rayleigh-Bénard, and Double Diffusive Convection: A Unifying View on Turbulent Transport Enhancement through Coherent Structure Manipulation


Author(s): Kai Leong Chong, Yantao Yang, Shi-Di Huang, Jin-Qiang Zhong, Richard J. A. M. Stevens, Roberto Verzicco, Detlef Lohse, and Ke-Qing Xia

Many natural and engineering systems are simultaneously subjected to a driving force and a stabilizing force. The interplay between the two forces, especially for highly nonlinear systems such as fluid flow, often results in surprising features. Here we reveal such features in three different types ...

[Phys. Rev. Lett. 119, 064501] Published Mon Aug 07, 2017

High-Pressure Behavior of Hydrogen and Deuterium at Low Temperatures


Author(s): Xiao-Di Liu, Ross T. Howie, Hui-Chao Zhang, Xiao-Jia Chen, and Eugene Gregoryanz

In situ high-pressure low-temperature high-quality Raman data for hydrogen and deuterium demonstrate the presence of a novel phase, phase ${\mathrm{II}}^{′}$, unique to deuterium and distinct from the known phase II. Phase ${\mathrm{II}}^{′}$ of ${\mathrm{D}}_{2}$ is not observed in hydrogen, making...

[Phys. Rev. Lett. 119, 065301] Published Mon Aug 07, 2017

Successive Dimensional Transition in ${(\mathrm{TMTTF})}_{2}{\mathrm{PF}}_{6}$ Revealed by Synchrotron X-ray Diffraction


Author(s): Shunsuke Kitou, Tatsuya Fujii, Tadashi Kawamoto, Naoyuki Katayama, Sachiko Maki, Eiji Nishibori, Kunihisa Sugimoto, Masaki Takata, Toshikazu Nakamura, and Hiroshi Sawa

A quasi-one-dimensional organic charge-transfer salt ${(\mathrm{TMTTF})}_{2}{\mathrm{PF}}_{6}$ undergoes a multistep phase transition as the temperature decreases. One of these transitions is called a “structureless transition,” and these detailed structures were unknown for many years. With synchro...

[Phys. Rev. Lett. 119, 065701] Published Mon Aug 07, 2017

Conductance of a Freestanding Conjugated Molecular Wire


Author(s): Torben Jasper-Tönnies, Aran Garcia-Lekue, Thomas Frederiksen, Sandra Ulrich, Rainer Herges, and Richard Berndt

The conductance of a molecule standing perpendicular to a substrate is found to be dependent on the geometry, orbital symmetries, and bonds of the molecule.

[Phys. Rev. Lett. 119, 066801] Published Mon Aug 07, 2017

Transport Properties of an Electron-Hole Bilayer in Contact with a Superconductor Hybrid Junction


Author(s): D. Bercioux, T. M. Klapwijk, and F. S. Bergeret

We investigate the transport properties of a junction consisting of an electron-hole bilayer in contact with normal and superconducting leads. The electron-hole bilayer is considered as a semimetal with two electronic bands. We assume that in the region between the contacts the system hosts an excit...

[Phys. Rev. Lett. 119, 067001] Published Mon Aug 07, 2017

Holon Wigner Crystal in a Lightly Doped Kagome Quantum Spin Liquid


Author(s): Hong-Chen Jiang, T. Devereaux, and S. A. Kivelson

We address the problem of a lightly doped spin liquid through a large-scale density-matrix renormalization group study of the $t\text{−}J$ model on a kagome lattice with a small but nonzero concentration $δ$ of doped holes. It is now widely accepted that the undoped ($δ=0$) spin-$1/2$ Heisenberg ant...

[Phys. Rev. Lett. 119, 067002] Published Mon Aug 07, 2017

Stepwise Bose-Einstein Condensation in a Spinor Gas


Author(s): C. Frapolli, T. Zibold, A. Invernizzi, K. Jiménez-García, J. Dalibard, and F. Gerbier

We observe multistep condensation of sodium atoms with spin $F=1$, where the different Zeeman components ${m}_{F}=0,±1$ condense sequentially as the temperature decreases. The precise sequence changes drastically depending on the magnetization ${m}_{z}$ and on the quadratic Zeeman energy $q$ (QZE) i...

[Phys. Rev. Lett. 119, 050404] Published Fri Aug 04, 2017

Determining Complementary Properties with Quantum Clones


Author(s): G. S. Thekkadath, R. Y. Saaltink, L. Giner, and J. S. Lundeen

In a classical world, simultaneous measurements of complementary properties (e.g., position and momentum) give a system’s state. In quantum mechanics, measurement-induced disturbance is largest for complementary properties and, hence, limits the precision with which such properties can be determined...

[Phys. Rev. Lett. 119, 050405] Published Fri Aug 04, 2017

Contextual Fraction as a Measure of Contextuality


Author(s): Samson Abramsky, Rui Soares Barbosa, and Shane Mansfield

We consider the contextual fraction as a quantitative measure of contextuality of empirical models, i.e., tables of probabilities of measurement outcomes in an experimental scenario. It provides a general way to compare the degree of contextuality across measurement scenarios; it bears a precise rel...

[Phys. Rev. Lett. 119, 050504] Published Fri Aug 04, 2017

Quantum Heat Engine Using Electromagnetically Induced Transparency


Author(s): Yueyang Zou, Yue Jiang, Yefeng Mei, Xianxin Guo, and Shengwang Du

We report an experiment demonstrating the generation of directional thermal radiation with a spectral brightness that is about 9 times greater than that of the ambient pumping reservoir. The experiment is based on the recent proposal for a nontraditional quantum heat engine and uses cold Rb atoms, e...

[Phys. Rev. Lett. 119, 050602] Published Fri Aug 04, 2017

Search for the Dimuon Decay of the Higgs Boson in $pp$ Collisions at $\sqrt{s}=13\text{ }\text{ }\mathrm{TeV}$ with the ATLAS Detector


Author(s): M. Aaboud et al. (ATLAS Collaboration)

The ATLAS collaboration has placed an upper limit on the decay rate of Higgs bosons into pairs of muons within a factor of three of the Standard Model prediction.

[Phys. Rev. Lett. 119, 051802] Published Fri Aug 04, 2017

Oscillation of Branching Ratios Between the $\mathrm{D}(2s)+\mathrm{D}(1s)$ and the $\mathrm{D}(2p)+\mathrm{D}(1s)$ Channels in Direct Photodissociation of ${\mathrm{D}}_{2}$


Author(s): Jie Wang, Qingnan Meng, and Yuxiang Mo

Previously predicted oscillations in the electronic states of atoms after the dissociation of a hydrogen molecule are observed experimentally.

[Phys. Rev. Lett. 119, 053002] Published Fri Aug 04, 2017

Emergence of a Higher Energy Structure in Strong Field Ionization with Inhomogeneous Electric Fields


Author(s): L. Ortmann, J. A. Pérez-Hernández, M. F. Ciappina, J. Schötz, A. Chacón, G. Zeraouli, M. F. Kling, L. Roso, M. Lewenstein, and A. S. Landsman

Studies of strong field ionization have historically relied on the strong field approximation, which neglects all spatial dependence in the forces experienced by the electron after ionization. More recently, the small spatial inhomogeneity introduced by the long-range Coulomb potential has been link...

[Phys. Rev. Lett. 119, 053204] Published Fri Aug 04, 2017

Longitudinal and Transverse Instability of Ion Acoustic Waves


Author(s): T. Chapman, R. L. Berger, B. I. Cohen, J. W. Banks, and S. Brunner

Ion acoustic waves are found to be susceptible to at least two distinct decay processes. Which process dominates depends on the parameters. In the cases examined, the decay channel where daughter modes propagate parallel to the mother mode is found to dominate at larger amplitudes, while the decay c...

[Phys. Rev. Lett. 119, 055002] Published Fri Aug 04, 2017

Stability of Electrodeposition at Solid-Solid Interfaces and Implications for Metal Anodes


Author(s): Zeeshan Ahmad and Venkatasubramanian Viswanathan

We generalize the conditions for stable electrodeposition at isotropic solid-solid interfaces using a kinetic model which incorporates the effects of stresses and surface tension at the interface. We develop a stability diagram that shows two regimes of stability: a previously known pressure-driven ...

[Phys. Rev. Lett. 119, 056003] Published Fri Aug 04, 2017

Towards a First-Principles Determination of Effective Coulomb Interactions in Correlated Electron Materials: Role of Intershell Interactions


Author(s): Priyanka Seth, Philipp Hansmann, Ambroise van Roekeghem, Loig Vaugier, and Silke Biermann

The determination of the effective Coulomb interactions to be used in low-energy Hamiltonians for materials with strong electronic correlations remains one of the bottlenecks for parameter-free electronic structure calculations. We propose and benchmark a scheme for determining the effective local C...

[Phys. Rev. Lett. 119, 056401] Published Fri Aug 04, 2017

Breakdown of Traditional Many-Body Theories for Correlated Electrons


Author(s): O. Gunnarsson, G. Rohringer, T. Schäfer, G. Sangiovanni, and A. Toschi

Starting from the (Hubbard) model of an atom, we demonstrate that the uniqueness of the mapping from the interacting to the noninteracting Green function, $G→{G}_{0}$, is strongly violated, by providing numerous explicit examples of different ${G}_{0}$ leading to the same physical $G$. We argue that...

[Phys. Rev. Lett. 119, 056402] Published Fri Aug 04, 2017

Enhanced Spin Conductance of a Thin-Film Insulating Antiferromagnet


Author(s): Scott A. Bender, Hans Skarsvåg, Arne Brataas, and Rembert A. Duine

We investigate spin transport by thermally excited spin waves in an antiferromagnetic insulator. Starting from a stochastic Landau-Lifshitz-Gilbert phenomenology, we obtain the out-of-equilibrium spin-wave properties. In linear response to spin biasing and a temperature gradient, we compute the spin...

[Phys. Rev. Lett. 119, 056804] Published Fri Aug 04, 2017

Transport through a Majorana Island in the Strong Tunneling Regime


Author(s): Roman M. Lutchyn and Leonid I. Glazman

In the presence of Rashba spin-orbit coupling, a magnetic field can drive a proximitized nanowire into a topological superconducting phase [R. M. Lutchyn, J. D. Sau, and S. Das Sarma, Phys. Rev. Lett. 105, 077001 (2010). and Y. Oreg, G. Refael, and F. von Oppen, Phys. Rev. Lett. 105, 177002 (2010).]...

[Phys. Rev. Lett. 119, 057002] Published Fri Aug 04, 2017

Skyrme Insulators: Insulators at the Brink of Superconductivity


Author(s): Onur Erten, Po-Yao Chang, Piers Coleman, and Alexei M. Tsvelik

Current theories of superfluidity are based on the idea of a coherent quantum state with topologically protected quantized circulation. When this topological protection is absent, as in the case of $^{3}\mathrm{He}\text{−}A$, the coherent quantum state no longer supports persistent superflow. Here, ...

[Phys. Rev. Lett. 119, 057603] Published Fri Aug 04, 2017

Terahertz-Range Polar Modes in Domain-Engineered ${\mathrm{BiFeO}}_{3}$


Author(s): Jirka Hlinka, Marek Paściak, Sabine Körbel, and Pavel Marton

The dielectric permittivity and properties of electrically active lattice resonances in nanotwinned ${\mathrm{BiFeO}}_{3}$ crystals have been studied theoretically using an earlier established interatomic potential. The results suggest that an array of 71° domain walls with about 2–5 nm spacing enha...

[Phys. Rev. Lett. 119, 057604] Published Fri Aug 04, 2017