An arrangement of lasers and mirrors is used to map the topology patterns of quasicrystals.

[Phys. Rev. Lett. 119, 215304] Published Wed Nov 22, 2017

]]>Researchers characterize the spin couplings in the prototypical single-molecule magnet Mn${}_{12}$ using an advanced neutron scattering technique.

[Phys. Rev. Lett. 119, 217202] Published Wed Nov 22, 2017

]]>A mysterious gamma-ray emission from the Crab Nebula—a giant interstellar cloud of gas—may be due to fluctuations in the wind blown out from the pulsar in the nebula’s center.

[Phys. Rev. Lett. 119, 211101] Published Tue Nov 21, 2017

]]>A gauge-invariant calculation of the decay rate of the metastable vacuum removes some theoretical uncertainty in the Universe’s estimated lifetime.

[Phys. Rev. Lett. 119, 211801] Published Tue Nov 21, 2017

]]>We study a binary spin mixture of a zero-temperature repulsively interacting ${}^{6}\mathrm{Li}$ atoms using both the atomic-orbital and density-functional approaches. The gas is initially prepared in a configuration of two magnetic domains and we determine the frequency of the spin-dipole oscillations which are em...

[Phys. Rev. Lett. 119, 215303] Published Tue Nov 21, 2017

]]>The conversion efficiency ($zT$) of thermoelectric (TE) materials has been enhanced over the last two decades, but their engineering applications are hindered by the poor mechanical properties, especially the low strength at working conditions. Here we used density functional theory (DFT) to show a st...

[Phys. Rev. Lett. 119, 215503] Published Tue Nov 21, 2017

]]>Cracks in brittle materials produce two types of generic surface structures: facets at low velocities and microbranches at higher ones. Here we observe a transition from faceting to microbranching in polyacrylamide gels that is characterized by nonlinear dynamic localization of crack fronts. To bett...

[Phys. Rev. Lett. 119, 215505] Published Tue Nov 21, 2017

]]>The low-temperature thermal and transport properties of an unusual kind of crystal exhibiting minimal molecular positional and tilting disorder have been measured. The material, namely, low-dimensional, *highly anisotropic* pentachloronitrobenzene has a layered structure of rhombohedral parallel plane...

[Phys. Rev. Lett. 119, 215506] Published Tue Nov 21, 2017

]]>The convection or settling of matter in the deep Earth’s interior is mostly constrained by density variations between the different reservoirs. Knowledge of the density contrast between solid and molten silicates is thus of prime importance to understand and model the dynamic behavior of the past an...

[Phys. Rev. Lett. 119, 215701] Published Tue Nov 21, 2017

]]>We present the appearance of negative differential resistance (NDR) in spin-dependent electron transport through a few-atom spin chain. A chain of three antiferromagnetically coupled Fe atoms (Fe trimer) was positioned on a ${\mathrm{Cu}}_{2}\mathrm{N}/\mathrm{Cu}(100)$ surface and contacted with the spin-polarized tip of a scanning...

[Phys. Rev. Lett. 119, 217201] Published Tue Nov 21, 2017

]]>The emission rate of a point dipole can be strongly increased in the presence of a well-designed optical antenna. Yet, optical antenna design is largely based on radio-frequency rules, ignoring, e.g., Ohmic losses and non-negligible field penetration in metals at optical frequencies. Here, we combin...

[Phys. Rev. Lett. 119, 217401] Published Tue Nov 21, 2017

]]>We develop a lattice-based Monte Carlo simulation method for charged mixtures capable of treating dielectric heterogeneities. Using this method, we study oil-water mixtures containing an antagonistic salt, with hydrophilic cations and hydrophobic anions. Our simulations reveal several phases with a ...

[Phys. Rev. Lett. 119, 218001] Published Tue Nov 21, 2017

]]>Topological insulating phases are primarily associated with condensed-matter systems, which typically feature short-range interactions. Nevertheless, many realizations of quantum matter can exhibit long-range interactions, and it is still largely unknown the effect that these latter may exert upon t...

[Phys. Rev. Lett. 119, 210401] Published Mon Nov 20, 2017

]]>When two identical fermions exchange their positions, their wave function gains a phase factor of $-1$. We show that this distance-independent effect can induce nonlocal entanglement in one-dimensional (1D) electron systems having Majorana fermions at the ends. It occurs in the system bulk and has a n...

[Phys. Rev. Lett. 119, 210501] Published Mon Nov 20, 2017

]]>We consider the problem of computing first-passage time distributions for reaction processes modeled by master equations. We show that this generally intractable class of problems is equivalent to a sequential Bayesian inference problem for an auxiliary observation process. The solution can be appro...

[Phys. Rev. Lett. 119, 210601] Published Mon Nov 20, 2017

]]>We compute the $\beta $ functions of marginal couplings in projectable Hořava gravity in $2+1$ spacetime dimensions. We show that the renormalization group flow has an asymptotically free fixed point in the ultraviolet (UV), establishing the theory as a UV-complete model with dynamical gravitational degrees ...

[Phys. Rev. Lett. 119, 211301] Published Mon Nov 20, 2017

]]>Using data from the $\nu $-cleus detector, based on the surface of Earth, we place constraints on dark matter in the form of strongly interacting massive particles (SIMPs) which interact with nucleons via nuclear-scale cross sections. For large SIMP-nucleon cross sections, the sensitivity of traditional ...

[Phys. Rev. Lett. 119, 211302] Published Mon Nov 20, 2017

]]>We explain how asymptotic safety arises in four-dimensional supersymmetric gauge theories. We provide asymptotically safe supersymmetric gauge theories together with their superconformal fixed points, $R$ charges, phase diagrams, and UV-IR connecting trajectories. Strict perturbative control is achiev...

[Phys. Rev. Lett. 119, 211601] Published Mon Nov 20, 2017

]]>We present the first threshold and jet radius jointly resummed cross section for single-inclusive hadronic jet production. We work at next-to-leading logarithmic accuracy and our framework allows for a systematic extension beyond the currently achieved precision. Long-standing numerical issues are o...

[Phys. Rev. Lett. 119, 212001] Published Mon Nov 20, 2017

]]>We propose a method for engineering spin dynamics in ensembles of integer-spin atoms confined within a high-finesse optical cavity. Our proposal uses cavity-assisted Raman transitions to engineer a Dicke model for integer-spin atoms, which, in a dispersive limit, reduces to effective atom-atom inter...

[Phys. Rev. Lett. 119, 213601] Published Mon Nov 20, 2017

]]>Topological semimetals, representing a new topological phase that lacks a full band gap in bulk states and exhibiting nontrivial topological orders, recently have been extended to photonic systems, predominantly in photonic crystals and to a lesser extent metamaterials. Photonic crystal realizations...

[Phys. Rev. Lett. 119, 213901] Published Mon Nov 20, 2017

]]>Thermo-osmotic and related thermophoretic phenomena can be found in many situations from biology to colloid science, but the underlying molecular mechanisms remain largely unexplored. Using molecular dynamics simulations, we measure the thermo-osmosis coefficient by both mechanocaloric and thermo-os...

[Phys. Rev. Lett. 119, 214501] Published Mon Nov 20, 2017

]]>Drops impacting on solid surfaces entrap small bubbles under their centers, owing to the lubrication pressure which builds up in the thin intervening air layer. We use ultrahigh-speed interference imaging, at 5 Mfps, to investigate how this air layer changes when the ambient air pressure is reduced ...

[Phys. Rev. Lett. 119, 214502] Published Mon Nov 20, 2017

]]>We consider a zero-temperature one-dimensional system of bosons interacting via the soft-shoulder potential in the continuum, typical of dressed Rydberg gases. We employ quantum Monte Carlo simulations, which allow for the exact calculation of imaginary-time correlations, and a stochastic analytic c...

[Phys. Rev. Lett. 119, 215301] Published Mon Nov 20, 2017

]]>We systematically investigate the zero temperature phase diagram of bosons interacting via dipolar interactions in three dimensions in free space via path integral Monte Carlo simulations with a few hundreds of particles and periodic boundary conditions based on the worm algorithm. Upon increasing t...

[Phys. Rev. Lett. 119, 215302] Published Mon Nov 20, 2017

]]>Although nanoscale spatial heterogeneity of metallic glasses has been demonstrated by extensive experimental and theoretical investigations, the nature of spatial heterogeneity remains poorly known owing to the absence of a structural depiction of the inhomogeneity from experimental insight. Here we...

[Phys. Rev. Lett. 119, 215501] Published Mon Nov 20, 2017

]]>We consider the contribution to the density of vibrational states and the distribution of energy barrier heights of incipient instabilities in a glass modeled by a jammed packing of spheres. On approaching an instability, the frequency of a normal mode and the height of the energy barrier to cross i...

[Phys. Rev. Lett. 119, 215502] Published Mon Nov 20, 2017

]]>A combination of imaging techniques provides an unprecedented 3D view of a network of crystal defects known as dislocations.

[Phys. Rev. Lett. 119, 215504] Published Mon Nov 20, 2017

]]>Prominent systems like the high-${T}_{c}$ cuprates and heavy fermions display intriguing features going beyond the quasiparticle description. The Sachdev-Ye-Kitaev (SYK) model describes a $(0+1)\mathrm{D}$ quantum cluster with random all-to-all *four*-fermion interactions among $N$ fermion modes which becomes exactly sol...

[Phys. Rev. Lett. 119, 216601] Published Mon Nov 20, 2017

]]>The experimental observation of band hybridization in a cuprate superconductor explains why the highest superconducting transition temperatures occur in samples with only three coupled copper dioxide layers.

[Phys. Rev. Lett. 119, 217001] Published Mon Nov 20, 2017

]]>We investigate the magnetic phase diagram near the upper critical field of ${\mathrm{KFe}}_{2}{\mathrm{As}}_{2}$ by magnetic torque and specific heat experiments using a high-resolution piezorotary positioner to precisely control the parallel alignment of the magnetic field with respect to the FeAs layers. We observe a clear dou...

[Phys. Rev. Lett. 119, 217002] Published Mon Nov 20, 2017

]]>Parafermionic zero modes are a novel set of excitations displaying non-Abelian statistics somewhat richer than that of Majorana modes. These modes are predicted to occur when nearby fractional quantum Hall edge states are gapped by an interposed superconductor. Despite substantial experimental progr...

[Phys. Rev. Lett. 119, 217701] Published Mon Nov 20, 2017

]]>[Phys. Rev. Lett. 119, 219901] Published Mon Nov 20, 2017

]]>This Letter considers stellar core collapse in massive scalar-tensor theories of gravity. The presence of a mass term for the scalar field allows for dramatic increases in the radiated gravitational wave signal. There are several potential *smoking gun* signatures of a departure from general relativit...

[Phys. Rev. Lett. 119, 201103] Published Fri Nov 17, 2017

]]>In this Letter, it is shown that interactions can facilitate the emergence of topological edge states of quantum-degenerate bosonic systems in the presence of a harmonic potential. This effect is demonstrated with the concrete model of a hexagonal lattice populated by spin-one bosons under a synthet...

[Phys. Rev. Lett. 119, 203204] Published Fri Nov 17, 2017

]]>Nitrogen molecules in ambient air exposed to an intense near-infrared femtosecond laser pulse give rise to cavity-free superradiant emission at 391.4 and 427.8 nm. An unexpected pulse duration-dependent cyclic variation of the superradiance intensity is observed when the central wavelength of the fe...

[Phys. Rev. Lett. 119, 203205] Published Fri Nov 17, 2017

]]>While the saturated magnetic energy is independent of viscosity in dynamo experiments, it remains viscosity dependent in state-of-the-art 3D direct numerical simulations (DNS). Extrapolating such viscous scaling laws to realistic parameter values leads to an underestimation of the magnetic energy by...

[Phys. Rev. Lett. 119, 204503] Published Fri Nov 17, 2017

]]>An experiment in a linear device, the Large Plasma Device, is used to study sheaths caused by an actively powered radio frequency (rf) antenna. The rf antenna used in the experiment consists of a single current strap recessed inside a copper box enclosure without a Faraday screen. A large increase i...

[Phys. Rev. Lett. 119, 205002] Published Fri Nov 17, 2017

]]>Ultrafast laser annealing of ion implanted Si has led to thermodynamically unexpected large $\{001\}$ self-interstitial loops, and the failure of Ostwald ripening models for describing self-interstitial cluster growth. We have carried out molecular dynamics simulations in combination with focused experi...

[Phys. Rev. Lett. 119, 205503] Published Fri Nov 17, 2017

]]>The theoretical proposal of chiral fermions in topological semimetals has led to a significant effort towards their experimental realization. In particular, the Fermi surfaces of chiral semimetals carry quantized Chern numbers, making them an attractive platform for the observation of exotic transpo...

[Phys. Rev. Lett. 119, 206401] Published Fri Nov 17, 2017

]]>Exotic massless fermionic excitations with nonzero Berry flux, other than the Dirac and Weyl fermions, could exist in condensed matter systems under the protection of crystalline symmetries, such as spin-1 excitations with threefold degeneracy and spin-$3/2$ Rarita-Schwinger-Weyl fermions. Herein, by ...

[Phys. Rev. Lett. 119, 206402] Published Fri Nov 17, 2017

]]>A low temperature superconducting phase (3-4K) in ferroelectric SnP is experimentally observed when its ferroelectric phase is suppressed through hydrostatic pressure.

[Phys. Rev. Lett. 119, 207001] Published Fri Nov 17, 2017

]]>Experiments mimicking a common oil drilling technique, in which fluid is forced into an oil-filled, porous medium, have uncovered four different flow patterns.

[Phys. Rev. Lett. 119, 208005] Published Fri Nov 17, 2017

]]>Experiments confirm that photon interactions cause heating of ultracold atoms in a periodically driven optical lattice. Driving at higher frequencies causes the highest-energy atoms to leave the trap, which cools the system.

[Phys. Rev. Lett. 119, 200402] Published Thu Nov 16, 2017

]]>Quantum metrology calculates the ultimate precision of all estimation strategies, measuring what is their root-mean-square error (RMSE) and their Fisher information. Here, instead, we ask *how many bits* of the parameter we can recover; namely, we derive an information-theoretic quantum metrology. In ...

[Phys. Rev. Lett. 119, 200502] Published Thu Nov 16, 2017

]]>Two independent studies show no evidence that a fundamental symmetry in relativity, known as Lorentz invariance, breaks down.

[Phys. Rev. Lett. 119, 201101] Published Thu Nov 16, 2017

]]>Two independent studies show no evidence that a fundamental symmetry in relativity, known as Lorentz invariance, breaks down.

[Phys. Rev. Lett. 119, 201102] Published Thu Nov 16, 2017

]]>A variety of new physics models allows for neutrinos to up-scatter into heavier states. If the incident neutrino is energetic enough, the heavy neutrino may travel some distance before decaying. In this work, we consider the atmospheric neutrino flux as a source of such events. At IceCube, this woul...

[Phys. Rev. Lett. 119, 201804] Published Thu Nov 16, 2017

]]>We investigate the influence of a strong laser electromagnetic field on the $\alpha $-decay rate by using the Hennenberger frame of reference. We introduce an adimensional parameter $D={S}_{0}/{R}_{0}$, where ${R}_{0}$ is the geometrical nuclear radius and ${S}_{0}\sim \sqrt{I}/{\omega}^{2}$ is a length parameter depending on the laser intensity $I$ and f...

[Phys. Rev. Lett. 119, 202501] Published Thu Nov 16, 2017

]]>Positron cooling and annihilation in room temperature noble gases is simulated using accurate scattering and annihilation cross sections calculated with many-body theory, enabling the first simultaneous probing of the energy dependence of the scattering and annihilation cross sections. A strikingly ...

[Phys. Rev. Lett. 119, 203403] Published Thu Nov 16, 2017

]]>$\gamma $ spectra for positron annihilation in noble-gas atoms are calculated using many-body theory for positron momenta up to the positronium-formation threshold. These data are used, together with time-evolving positron-momentum distributions determined in the preceding Letter [Phys. Rev. Lett. **119**, 2034...

[Phys. Rev. Lett. 119, 203404] Published Thu Nov 16, 2017

]]>We theoretically analyze and experimentally measure the extrinsic angular momentum contribution of topologically structured darkness found within fractional vortex beams, and show that this structured darkness can be explained by evanescent waves at phase discontinuities in the generating optic. We ...

[Phys. Rev. Lett. 119, 203902] Published Thu Nov 16, 2017

]]>Phase singularities are locations where light is twisted like a corkscrew, with positive or negative topological charge depending on the twisting direction. Among the multitude of singularities arising in random wave fields, some can be found at the same location, but only when they exhibit opposite...

[Phys. Rev. Lett. 119, 203903] Published Thu Nov 16, 2017

]]>The collapse of a bubble of radius ${R}_{o}$ at the surface of a liquid generating a liquid jet and a subsequent first drop of radius $R$ is universally scaled using the Ohnesorge number $\mathrm{Oh}=\mu /(\rho \sigma {R}_{o}{)}^{1/2}$ and a critical value ${\mathrm{Oh}}^{*}$ below which no droplet is ejected; $\rho $, $\sigma $, and $\mu $ are the liquid density, surface ten...

[Phys. Rev. Lett. 119, 204502] Published Thu Nov 16, 2017

]]>Plasma turbulence is investigated using unprecedented high-resolution ion velocity distribution measurements by the Magnetospheric Multiscale mission (MMS) in the Earth’s magnetosheath. This novel observation of a highly structured particle distribution suggests a cascadelike process in velocity spa...

[Phys. Rev. Lett. 119, 205101] Published Thu Nov 16, 2017

]]>We present block analysis, an efficient method of performing finite-size scaling for obtaining the length scale of dynamic heterogeneity and the point-to-set length scale for generic glass-forming liquids. This method involves considering blocks of varying sizes embedded in a system of a fixed (larg...

[Phys. Rev. Lett. 119, 205502] Published Thu Nov 16, 2017

]]>A theoretical proposal suggests that a ferromagnet could be optically switched into an antiferromagnet by manipulating the double exchange interaction.

[Phys. Rev. Lett. 119, 207202] Published Thu Nov 16, 2017

]]>We reveal that concurrent events of inherent entropy boosting and increased synchronization between $A$- and $B$-site cation vibrations of an $AB{\mathrm{O}}_{3}$-type perovskite structure give rise to a larger piezoelectric response in a ferroelectric system at its morphotropic phase boundary (MPB). It is further evid...

[Phys. Rev. Lett. 119, 207604] Published Thu Nov 16, 2017

]]>Capillary and van der Waals forces cause nanotubes to deform or even collapse under metal contacts. Using *ab initio* band structure calculations, we find that these deformations reduce the band gap by as much as 30%, while fully collapsed nanotubes become metallic. Moreover, degeneracy lifting due to...

[Phys. Rev. Lett. 119, 207701] Published Thu Nov 16, 2017

]]>From well-controlled long creep tests, we show that the residual apparent yield stress observed with soft-jammed systems along smooth surfaces is an artifact due to edge effects. By removing these effects, we can determine the stress solely associated with steady-state wall slip below the material y...

[Phys. Rev. Lett. 119, 208004] Published Thu Nov 16, 2017

]]>In many contexts, it is extremely costly to perform enough high-quality experimental measurements to accurately parametrize a predictive quantitative model. However, it is often much easier to carry out large numbers of experiments that indicate whether each sample is above or below a given threshol...

[Phys. Rev. Lett. 119, 208101] Published Thu Nov 16, 2017

]]>We present a novel way of testing the seesaw origin of neutrino mass in the context of the minimal left-right symmetric model. It is based on the connection between the leptonic interactions of the doubly charged scalars, whose presence is at the core of the seesaw mechanism, and the neutrino Dirac ...

[Phys. Rev. Lett. 119, 201803] Published Wed Nov 15, 2017

]]>A pair of theory papers use the recently discovered double-charmed baryon to predict double-beauty tetraquarks.

[Phys. Rev. Lett. 119, 202001] Published Wed Nov 15, 2017

]]>A pair of theory papers use the recently discovered double-charmed baryon to predict double-beauty tetraquarks.

[Phys. Rev. Lett. 119, 202002] Published Wed Nov 15, 2017

]]>We report on the first measurement of the beam-spin asymmetry in the exclusive process of coherent deeply virtual Compton scattering off a nucleus. The experiment uses the 6 GeV electron beam from the Continuous Electron Beam Accelerator Facility (CEBAF) accelerator at Jefferson Lab incident on a pr...

[Phys. Rev. Lett. 119, 202004] Published Wed Nov 15, 2017

]]>High-harmonic spectroscopy driven by circularly polarized laser pulses and their counterrotating second harmonic is a new branch of attosecond science which currently lacks quantitative interpretations. We extend this technique to the midinfrared regime and record detailed high-harmonic spectra of s...

[Phys. Rev. Lett. 119, 203201] Published Wed Nov 15, 2017

]]>We experimentally investigate the single and double ionization of ${\mathrm{N}}_{2}$ and ${\mathrm{O}}_{2}$ molecules in bicircular two-color femtosecond laser pulses, and compare with their companion atoms of Ar and Xe with comparable ionization thresholds. Electron recollision assisted enhanced ionization is observed in ${\mathrm{N}}_{2}$ and A...

[Phys. Rev. Lett. 119, 203202] Published Wed Nov 15, 2017

]]>Fragmentation processes following C $1s\to \text{lowest}$ unoccupied molecular orbital core excitations in ${\mathrm{CF}}_{4}$ have been analyzed on the ground of the angular distribution of the ${\mathrm{CF}}_{3}^{+}$ emitted fragments by means of Auger electron-photoion coincidences. Different time scales have been enlightened, which correspon...

[Phys. Rev. Lett. 119, 203203] Published Wed Nov 15, 2017

]]>A novel method to determine the total hydrogen density and, accordingly, a precise plasma temperature in a lowly ionized hydrogen plasma is described. The key to the method is to analyze the energy loss of swift heavy ions interacting with the respective bound and free electrons of the plasma. A slo...

[Phys. Rev. Lett. 119, 204801] Published Wed Nov 15, 2017

]]>We propose a scheme to generate carrier-envelope-phase (CEP) stabilized few-cycle optical pulses from a free-electron laser oscillator. The CEP stabilization is realized by the continuous injection of CEP-stabilized seed pulses from an external laser to the free-electron laser oscillator whose cavit...

[Phys. Rev. Lett. 119, 204802] Published Wed Nov 15, 2017

]]>The propagation dynamics of resonant magnetic perturbation fields in KSTAR $H$-mode plasmas with injection of small edge perturbations produced by a supersonic molecular beam injection is reported for the first time. The results show that the perturbation field first excites a plasma response on the $q...$

[Phys. Rev. Lett. 119, 205001] Published Wed Nov 15, 2017

]]>Marginally stable solids have peculiar physical properties that were first analyzed in the context of the jamming transition. We theoretically investigate the existence of marginal stability in a prototypical model for structural glass formers, combining analytical calculations in infinite dimensio...

[Phys. Rev. Lett. 119, 205501] Published Wed Nov 15, 2017

]]>Many aspects of many-body localization (MBL) transitions remain elusive so far. Here, we propose a higher-dimensional generalization of the Sachdev-Ye-Kitaev (SYK) model and show that it exhibits a MBL transition. The model on a bipartite lattice has $N$ Majorana fermions with SYK interactions on each...

[Phys. Rev. Lett. 119, 206602] Published Wed Nov 15, 2017

]]>The Sachdev-Ye-Kitaev (SYK) model is a concrete solvable model to study non-Fermi liquid properties, holographic duality, and maximally chaotic behavior. In this work, we consider a generalization of the SYK model that contains two SYK models with a different number of Majorana modes coupled by quad...

[Phys. Rev. Lett. 119, 207603] Published Wed Nov 15, 2017

]]>We study long range density fluctuations (hyperuniformity) in two-dimensional jammed packings of bidisperse droplets. Taking advantage of microfluidics, we systematically span a large range of size and concentration ratios of the two droplet populations. We identify various defects increasing long r...

[Phys. Rev. Lett. 119, 208001] Published Wed Nov 15, 2017

]]>We study the rheology of a suspension of soft deformable droplets subjected to a pressure-driven flow. Through computer simulations, we measure the apparent viscosity as a function of droplet concentration and pressure gradient, and provide evidence of a *discontinuous* shear thinning behavior, which ...

[Phys. Rev. Lett. 119, 208002] Published Wed Nov 15, 2017

]]>We derive the hydrodynamic equations with fluctuating currents for the density, momentum, and energy fields for an active system in the dilute limit. In our model, nonoverdamped self-propelled particles (such as grains or birds) move on a lattice, interacting by means of aligning dissipative forces ...

[Phys. Rev. Lett. 119, 208003] Published Wed Nov 15, 2017

]]>A rare decay ${K}_{L}\to {\mu}^{+}{\mu}^{-}$ has been measured precisely, while a rare decay ${K}_{S}\to {\mu}^{+}{\mu}^{-}$ will be observed by an upgrade of the LHCb experiment. Although both processes are almost $CP$-conserving decays, we point out that an interference contribution between ${K}_{L}$ and ${K}_{S}$ in the kaon beam emerges from a genuine direct...

[Phys. Rev. Lett. 119, 201802] Published Tue Nov 14, 2017

]]>We measure the mass difference, $\mathrm{\Delta}{m}_{+}$, between the ${D}^{*}(2010{)}^{+}$ and the ${D}^{+}$ using the decay chain ${D}^{*}(2010{)}^{+}\to {D}^{+}{\pi}^{0}$ with ${D}^{+}\to {K}^{-}{\pi}^{+}{\pi}^{+}$. The data were recorded with the *BABAR* detector at center-of-mass energies at and near the $\mathrm{\Upsilon}(4S)$ resonance, and correspond to an integrated luminosity of approximately $468\text{\hspace{0.17em}}\text{\hspace{0.17em}}{\text{fb}}^{-1}$....

[Phys. Rev. Lett. 119, 202003] Published Tue Nov 14, 2017

]]>Trilobites are exotic giant dimers with enormous dipole moments. They consist of a Rydberg atom and a distant ground-state atom bound together by short-range electron-neutral attraction. We show that highly polar, polyatomic trilobite states unexpectedly persist and thrive in a dense ultracold gas o...

[Phys. Rev. Lett. 119, 203001] Published Tue Nov 14, 2017

]]>A statistical model of drops merging and splitting as they slide down an inclined plane shows that the drop ensemble properties converge to a near stationary state.

[Phys. Rev. Lett. 119, 204501] Published Tue Nov 14, 2017

]]>It is shown that the enthalpy of any close packed structure for a given element can be characterized as a linear expansion in a set of continuous variables ${\alpha}_{n}$, which describe the stacking configuration. This enables us to represent the infinite, discrete set of stacking sequences within a finite, co...

[Phys. Rev. Lett. 119, 205701] Published Tue Nov 14, 2017

]]>We report on fundamental aspects of spin dynamics in heterostructures of graphene and transition metal dichalcogenides (TMDCs). By using realistic models derived from first principles we compute the spin lifetime anisotropy, defined as the ratio of lifetimes for spins pointing out of the graphene pl...

[Phys. Rev. Lett. 119, 206601] Published Tue Nov 14, 2017

]]>We study topological defects in anisotropic ferromagnets with competing interactions near the Lifshitz point. We show that Skyrmions and bimerons are stable in a large part of the phase diagram. We calculate Skyrmion-Skyrmion and meron-meron interactions and show that Skyrmions attract each other an...

[Phys. Rev. Lett. 119, 207201] Published Tue Nov 14, 2017

]]>The negative longitudinal piezoelectric effect is predicted to be a general phenomenon caused by the strong ionic bonds, whose origin lies in small effective charges and rigid potential energy surfaces.

[Phys. Rev. Lett. 119, 207601] Published Tue Nov 14, 2017

]]>Recently, a plastic crystal of quinuclidinium perrhenate (${\mathrm{HQReO}}_{4}$) was reported to have the feasibility of controlling the crystallographic orientation in the grown crystal, but the corresponding temperature window is only about 22 K (345–367 K). Such a narrow window and uncertain ferroelectricity at...

[Phys. Rev. Lett. 119, 207602] Published Tue Nov 14, 2017

]]>We develop a unified theory that encompasses the macroscopic dynamics of recurrent interactions of binary units within arbitrary network architectures. Using the martingale theory, our mathematical analysis provides a complete description of nonequilibrium fluctuations in networks with a finite size...

[Phys. Rev. Lett. 119, 208301] Published Tue Nov 14, 2017

]]>[Phys. Rev. Lett. 119, 209901] Published Tue Nov 14, 2017

]]>The adiabatic theorem is a fundamental result in quantum mechanics, which states that a system can be kept arbitrarily close to the instantaneous ground state of its Hamiltonian if the latter varies in time slowly enough. The theorem has an impressive record of applications ranging from foundations ...

[Phys. Rev. Lett. 119, 200401] Published Mon Nov 13, 2017

]]>A quantum cryptographic key using entangled photons is generated between a ground station and China’s satellite, Micius.

[Phys. Rev. Lett. 119, 200501] Published Mon Nov 13, 2017

]]>The lightlike cusp anomalous dimension is a universal function that controls infrared divergences in quite general gauge theories. In the maximally supersymmetric Yang-Mills theory this function is fixed fully by integrability to the three-loop order. At four loops a nonplanar correction appears whi...

[Phys. Rev. Lett. 119, 201601] Published Mon Nov 13, 2017

]]>We show that the high-energy cosmic neutrinos seen by the IceCube Neutrino Observatory can be used to probe interactions between neutrinos and the dark sector that cannot be reached by current cosmological methods. The origin of the observed neutrinos is still unknown, and their arrival directions a...

[Phys. Rev. Lett. 119, 201801] Published Mon Nov 13, 2017

]]>We measure the projectile $K$ x-ray spectra as a function of the beam energies around the Coulomb barrier in different collision systems. The energy is scanned in small steps around the barrier aiming to explore the nuclear effects on the elastically scattered projectile ions. The variation of the pro...

[Phys. Rev. Lett. 119, 203401] Published Mon Nov 13, 2017

]]>$d$-wave interactions like those thought to underlie unconventional superconductivity have been implemented in a cold-atom gas.

[Phys. Rev. Lett. 119, 203402] Published Mon Nov 13, 2017

]]>Experiments show that the nonlinear response of an optical system can enhance localization of energy, leading to the formation of rogue waves.

[Phys. Rev. Lett. 119, 203901] Published Mon Nov 13, 2017

]]>A measure ties quantum coherence inextricably to the nonclassicality of light, showing that resources underlying both phenomena are the same.

[Phys. Rev. Lett. 119, 190405] Published Fri Nov 10, 2017

]]>A vortex-like magnetic spin structure inside a small disk of material is stable without an external magnetic field and might be useful for information storage or processing.

[Phys. Rev. Lett. 119, 197205] Published Fri Nov 10, 2017

]]>[Phys. Rev. Lett. 119, 199902] Published Fri Nov 10, 2017

]]>A common assumption is that one applies a fault-tolerant quantum error correction (FTQEC) after every gate during quantum computing. However, it is known that this is not always optimal, since the FTQEC procedure itself can introduce errors. Here we vary the number of logical gates between FTQEC ope...

[Phys. Rev. Lett. 119, 190502] Published Thu Nov 09, 2017

]]>In order to realize fault-tolerant quantum computation, a tight evaluation of the error threshold under practical noise models is essential. While non-Clifford noise is ubiquitous in experiments, the error threshold under non-Clifford noise cannot be efficiently treated with known approaches. We con...

[Phys. Rev. Lett. 119, 190503] Published Thu Nov 09, 2017

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