The observation of dynamical quantum phase transitions in an interacting many-body system breaks new ground in the study of matter out of thermal equilibrium.

[Phys. Rev. Lett. 119, 080501] Published Mon Aug 21, 2017

]]>We establish the existence of bulk odd-frequency superconductivity in ${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$ and show that an intrinsic Kerr effect is direct evidence of this state. We use both general two- and three-orbital models, as well as a realistic tight-binding description of ${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$ to demonstrate that odd-frequency pair...

[Phys. Rev. Lett. 119, 087001] Published Mon Aug 21, 2017

]]>We introduce a new optimization procedure for Euclidean path integrals, which compute wave functionals in conformal field theories (CFTs). We optimize the background metric in the space on which the path integration is performed. Equivalently, this is interpreted as a position-dependent UV cutoff. F...

[Phys. Rev. Lett. 119, 071602] Published Fri Aug 18, 2017

]]>We perform the first next-to-leading order computation of the ${\gamma}^{(*)}\to V$ ($\rho ,\varphi ,\omega $) exclusive impact factor in the QCD shock-wave approach and in the most general kinematics. This paves the way to the very first quantitative study of high-energy nucleon and nucleus saturation beyond the leading order for a...

[Phys. Rev. Lett. 119, 072002] Published Fri Aug 18, 2017

]]>Two-leg bosonic ladders with flux harbor a remarkable vortex-hole duality between the weak-coupling vortex lattice superfluids and strong-coupling charge-density-wave crystals. The strong-coupling crystalline states, which are realized in the vicinity of $\pi $ flux, are independent of particle statistic...

[Phys. Rev. Lett. 119, 073401] Published Fri Aug 18, 2017

]]>We examine the momentum, spin, and orbital angular momentum of structured monochromatic optical fields in dispersive inhomogeneous isotropic media. There are two bifurcations in this general problem: the Abraham-Minkowski dilemma and the kinetic (Poynting-like) versus canonical (spin-orbital) pictur...

[Phys. Rev. Lett. 119, 073901] Published Fri Aug 18, 2017

]]>Nonlinear optical interactions of light with materials originate in the microscopic response of the molecular constituents to excitation by an optical field, and are expressed by the first ($\beta $) and second ($\gamma $) hyperpolarizabilities. Upper bounds to these quantities were derived seventeen years ago usi...

[Phys. Rev. Lett. 119, 073902] Published Fri Aug 18, 2017

]]>We derive the phonon dynamics of magnetic metals in the presence of strong spin-orbit coupling. We show that both a dissipationless viscosity and a dissipative viscosity arise in the dynamics. While the dissipationless viscosity splits the dispersion of left-handed and right-handed circularly polari...

[Phys. Rev. Lett. 119, 075301] Published Fri Aug 18, 2017

]]>X-ray reflectivity measurements of femtosecond laser-induced transient gratings (TG) are applied to demonstrate the spatiotemporal coherent control of thermally induced surface deformations on ultrafast time scales. Using grazing incidence x-ray diffraction we unambiguously measure the amplitude of ...

[Phys. Rev. Lett. 119, 075901] Published Fri Aug 18, 2017

]]>We use *ab initio* calculations to predict the thermal conductivity of cubic SiC with different types of defects. An excellent quantitative agreement with previous experimental measurements is found. The results unveil that ${\mathrm{B}}_{\mathrm{C}}$ substitution has a much stronger effect than any of the other defect types ...

[Phys. Rev. Lett. 119, 075902] Published Fri Aug 18, 2017

]]>The hallmark of Weyl semimetals is the existence of open constant-energy contours on their surface—the so-called Fermi arcs—connecting Weyl points. Here, we show that, for time-reversal symmetric realizations of Weyl semimetals, these Fermi arcs, in many cases, coexist with closed Fermi pockets orig...

[Phys. Rev. Lett. 119, 076801] Published Fri Aug 18, 2017

]]>Magnetic penetration depth measurements show that the superconducting gap in this iconic heavy-fermion superconductor is robust against the introduction of disorder, ruling out some superconductivity mechanisms as explanations.

[Phys. Rev. Lett. 119, 077001] Published Fri Aug 18, 2017

]]>We report the polarization rotation of terahertz light resonant with the magnetoelectric (ME) spin excitation in the multiferroic ${(\mathrm{Fe},\mathrm{Zn})}_{2}{\mathrm{Mo}}_{3}{\mathrm{O}}_{8}$. This resonance reflects the frequency dispersion of the diagonal ME susceptibility (axion term), with which we quantitatively reproduce the thermal and mag...

[Phys. Rev. Lett. 119, 077206] Published Fri Aug 18, 2017

]]>Fractionalization is a ubiquitous phenomenon in topological states of matter. In this work, we study the collective behavior of fractionalized topological charges and their instabilities, through the ${J}_{1}\text{\u2212}{J}_{2}\text{\u2212}{J}_{3}$ Ising model on a kagome lattice. This model can be mapped onto a Hamiltonian of interacting...

[Phys. Rev. Lett. 119, 077207] Published Fri Aug 18, 2017

]]>The strongly spin-momentum coupled electronic states in topological insulators (TI) have been extensively pursued to realize efficient magnetic switching. However, previous studies show a large discrepancy of the charge-spin conversion efficiency. Moreover, current-induced magnetic switching with TI...

[Phys. Rev. Lett. 119, 077702] Published Fri Aug 18, 2017

]]>The capture of CO, a standard lung function test, results from diffusion-reaction processes of CO with hemoglobin inside red blood cells (RBCs). In its current understanding, suggested by Roughton and Forster in 1957, the capture is represented by two *independent* resistances in series, one for diffu...

[Phys. Rev. Lett. 119, 078101] Published Fri Aug 18, 2017

]]>[Phys. Rev. Lett. 119, 079901] Published Fri Aug 18, 2017

]]>[Phys. Rev. Lett. 119, 079902] Published Fri Aug 18, 2017

]]>[Phys. Rev. Lett. 119, 079903] Published Fri Aug 18, 2017

]]>[Phys. Rev. Lett. 119, 079904] Published Fri Aug 18, 2017

]]>The existence of ${}^{26}\mathrm{Al}$ (${t}_{1/2}=7.17\times {10}^{5}\text{\hspace{0.17em}}\text{\hspace{0.17em}}\mathrm{yr}$) in the interstellar medium provides a direct confirmation of ongoing nucleosynthesis in the Galaxy. The presence of a low-lying ${0}^{+}$ isomer (${{}^{26}\mathrm{Al}}^{m}$), however, severely complicates the astrophysical calculations. We present for the first time a study of the ${{}^{26}\mathrm{Al}}^{\mathrm{...}}$

[Phys. Rev. Lett. 119, 072701] Published Thu Aug 17, 2017

]]>We investigate the effect of large curvature and dipolar energy in thin ferromagnetic films with periodically modulated top and bottom surfaces on magnetization behavior. We predict that the dipolar interaction and surface curvature can produce perpendicular anisotropy which can be controlled by eng...

[Phys. Rev. Lett. 119, 077203] Published Thu Aug 17, 2017

]]>Motivated by a recent experimental demonstration of a chiral edge mode in an array of spinning gyroscopes, we theoretically study the coupled gyration modes of topological magnetic solitons, vortices and magnetic bubbles, arranged as a honeycomb lattice. The soliton lattice under suitable conditions...

[Phys. Rev. Lett. 119, 077204] Published Thu Aug 17, 2017

]]>Magneto-optical Kerr effect (MOKE) microscopy measurements of magnetic bubble domains demonstrate that ${\mathrm{Ar}}^{+}$ irradiation around 100 eV can tune the Dzyaloshinskii-Moriya interaction (DMI) in $\mathrm{Pt}/\mathrm{Co}/\mathrm{Pt}$ trilayers. Varying the irradiation energy and dose changes the DMI sign and magnitude separately from ...

[Phys. Rev. Lett. 119, 077205] Published Thu Aug 17, 2017

]]>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

]]>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

]]>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

]]>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

]]>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

]]>High $P\text{\u2212}T$ 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 above 140 G...

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

]]>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

]]>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

]]>We show that semiconducting graphene nanoribbons (GNRs) of different width, edge, and end termination (synthesizable from molecular precursors with atomic precision) belong to different electronic topological classes. The topological phase of GNRs is protected by spatial symmetries and dictated by t...

[Phys. Rev. Lett. 119, 076401] Published Wed Aug 16, 2017

]]>An alternating spin current has been generated at unprecedented GHz frequencies in a copper film, by exploiting an acoustic phenomenon.

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

]]>We investigate the excitation and propagation of surface plasmon polaritons (SPPs) at a geometrically flat metal-dielectric interface with a parity-time ($\mathcal{P}\mathcal{T}$) symmetric modulation on the permittivity $\u03f5(x)$ of the dielectric medium. We show that two striking effects can be simultaneously achieved thank...

[Phys. Rev. Lett. 119, 077401] Published Wed Aug 16, 2017

]]>Using wide spectral range *in situ* spectroscopic ellipsometry with systematic ultrahigh vacuum annealing and *in situ* exposure to oxygen, we report the complex dielectric function of ${\mathrm{MoS}}_{2}$ isolating the environmental effects and revealing the crucial role of unpassivated and passivated sulphur vacancie...

[Phys. Rev. Lett. 119, 077402] Published Wed Aug 16, 2017

]]>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

]]>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

]]>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

]]>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

]]>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

]]>The inequality ${m}^{3}\ge 27\pi /4|{\mathcal{J}}_{2}||{\mathcal{J}}_{1}-{\mathcal{J}}_{2}|$ relating total mass and angular momenta is established for (possibly dynamical) spacetimes admitting black holes of ring (${S}^{1}\times {S}^{2}$) topology. This inequality is shown to be sharp in the sense that it is saturated precisely for the extreme Pomeransky-Sen’kov black ring...

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

]]>We use integrability at weak coupling to compute fishnet diagrams for four-point correlation functions in planar ${\varphi}^{4}$ 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 constra...

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

]]>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

]]>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

]]>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

]]>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

]]>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

]]>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

]]>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

]]>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 ${\mathrm{La}}_{1-x}{\mathrm{...}}_{}$

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

]]>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 $\alpha $, and interact via exclusion volume only. When ...

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

]]>[Phys. Rev. Lett. 119, 079101] Published Mon Aug 14, 2017

]]>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 $\u03f5$ of local terms is indeed small compar...

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

]]>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

]]>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 $\mathbb{R}\times {S}^{3}$, via an SU(2)-equivariant ansatz, we reduce the Yang-Mills equations to ordinary matrix differential eq...

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

]]>Data on the reaction $\gamma p\to {K}^{+}\mathrm{\Lambda}$ 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 constraints. The multipoles are fitted using a multich...

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

]]>The ${p}_{\perp}$ 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 observed for v...

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

]]>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

]]>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

]]>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

]]>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

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

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

]]>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

]]>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

]]>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 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

]]>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

]]>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

]]>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 $h\nu >2eV$. A model of electrons interacting...

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

]]>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

]]>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

]]>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 $\mathrm{FeCo}/\mathrm{MgO}$ spin injecto...

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

]]>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

]]>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

]]>[Phys. Rev. Lett. 119, 069902] Published Thu Aug 10, 2017

]]>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

]]>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

]]>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

]]>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

]]>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 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

]]>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 $\delta f=0.66\text{\hspace{0.17em}}\text{\hspace{0.17em}}\mathrm{G...}$

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

]]>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 show that the typical ...

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

]]>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 function ${C}_{xv}(t)$...

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

]]>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

]]>The first observation of the decays ${\mathrm{\Lambda}}_{b}^{0}\to {\chi}_{c1}p{K}^{-}$ and ${\mathrm{\Lambda}}_{b}^{0}\to {\chi}_{c2}p{K}^{-}$ is reported using a data sample corresponding to an integrated luminosity of $3.0\text{\hspace{0.17em}}\text{\hspace{0.17em}}{\mathrm{fb}}^{-1}$, collected by the LHCb experiment in $pp$ collisions at center-of-mass energies of 7 and 8 TeV. The following ratios of branching fractions are measured:...

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

]]>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

]]>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

]]>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

]]>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

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

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

]]>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 $\hslash Nk/2$ in the Bose-Einstein cond...

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

]]>Recent observation of $\sim 10$ 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 dynami...

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

]]>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, the amplitude (Higgs) mode of the spin-orbit cond...

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

]]>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

]]>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 ($\sim 100\text{\hspace{0.17em}}\text{\hspace{0.17em}}\mu \mathrm{A}/{\mathrm{V}}^{2}$...

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

]]>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

]]>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

]]>[Phys. Rev. Lett. 119, 069301] Published Tue Aug 08, 2017

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