Heat flow management at the nanoscale is of great importance for emergent quantum technologies. For instance, a thermal sink that can be activated on-demand is a highly desirable tool that may accommodate the need to evacuate excess heat at chosen times, e.g., to maintain cryogenic temperatures or r...

[Phys. Rev. E 102, 030102(R)] Published Fri Sep 18, 2020

]]>We investigate the phase transition of the dodecahedron model on the square lattice. The model is a discrete analog of the classical Heisenberg model, which has continuous $O\left(3\right)$ symmetry. In order to treat the large on-site degree of freedom $q=20$, we develop a massively parallelized numerical algorit...

[Phys. Rev. E 102, 032130] Published Fri Sep 18, 2020

]]>The statistics of chiral matrix ensembles with uncorrelated but multivariate Gaussian distributed elements is intuitively expected to be driven by many parameters. Contrary to intuition, however, our theoretical analysis reveals the existence of a single parameter, a function of all ensemble paramet...

[Phys. Rev. E 102, 032131] Published Fri Sep 18, 2020

]]>The statistics of self-avoiding random walks have been used to model polymer physics for decades. A self-avoiding walk that grows one step at a time on a lattice will eventually trap itself, which occurs after an average of 71 steps on a square lattice. Here, we consider the effect of nearest-neighb...

[Phys. Rev. E 102, 032132] Published Fri Sep 18, 2020

]]>Understanding the functional connectivity of the brain has become a major goal of neuroscience. In many situations the relative phase difference, together with coherence patterns, has been employed to infer the direction of the information flow. However, it has been recently shown in local field pot...

[Phys. Rev. E 102, 032216] Published Fri Sep 18, 2020

]]>The dynamics of pseudo-spin-1/2 Bose-Einstein condensates with weak spin-orbit coupling through a moving obstacle potential are studied numerically. Four types of wakes are observed and the phase diagrams are determined for different spin-orbit coupling strengths. The conditions to form Bénard–von K...

[Phys. Rev. E 102, 032217] Published Fri Sep 18, 2020

]]>We propose a tractable epidemic model that includes containment measures. In the absence of containment measures, the epidemics spread exponentially fast whenever the infectivity rate is positive $\lambda >0$. The containment measures are modeled by considering a time-dependent modulation of the bare infe...

[Phys. Rev. E 102, 032305] Published Fri Sep 18, 2020

]]>The purpose of this work is to derive a small turbulent Péclet–small turbulent Mach number approximation for hydroradiative turbulent mixing zones encountered in stellar interiors where the radiative conductivity can overwhelms the turbulent transport. To this end, we proceed to an asymptotic analys...

[Phys. Rev. E 102, 033111] Published Fri Sep 18, 2020

]]>Nowadays hydrodynamic equations coupled with external equation of states provided by quantum mechanical calculations is a widely used approach for simulations of macroscopic degenerate plasmas. Although such an approach is proven to be efficient and shows many good features, especially for large sca...

[Phys. Rev. E 102, 033312] Published Fri Sep 18, 2020

]]>In this paper, we study quantum phase transitions and magnetic properties of a one-dimensional spin-1/2 Gamma model, which describes the off-diagonal exchange interactions between edge-shared octahedra with strong spin-orbit couplings along the sawtooth chain. The competing exchange interactions bet...

[Phys. Rev. E 102, 032127] Published Thu Sep 17, 2020

]]>In this paper, we develop a large $N$ field theory for a system of $N$ classical particles in one dimension at thermal equilibrium. The particles are confined by an arbitrary external potential, ${V}_{\text{ex}}\left(x\right)$, and repel each other via a class of pairwise interaction potentials ${V}_{\text{int}}\left(r\right)$ (where $r$ is distance bet...

[Phys. Rev. E 102, 032128] Published Thu Sep 17, 2020

]]>We consider Brownian motion under resetting in higher dimensions for the case when the return of the particle to the origin occurs at a constant speed. We investigate the behavior of the probability density function (PDF) and of the mean-squared displacement (MSD) in this process. We study two diffe...

[Phys. Rev. E 102, 032129] Published Thu Sep 17, 2020

]]>We use the Gurevich-Pitaevskii approach based on the Whitham averaging method for studying the formation of dispersive shock waves in an intense light pulse propagating through a saturable nonlinear medium. Although the Whitham modulation equations cannot be diagonalized in this case, the main chara...

[Phys. Rev. E 102, 032215] Published Thu Sep 17, 2020

]]>We present a complete theory of the scattering of a particle in a Yukawa potential when the screening length is much larger than the classical impact parameter for ${90}^{\circ}$ deflection and than the de Broglie length. The classical limit, the quantum limit, and the intermediate case are investigated, enabl...

[Phys. Rev. E 102, 033206] Published Thu Sep 17, 2020

]]>Dynamics of a particle diffusing in a confinement can be seen a sequence of bulk-diffusion-mediated hops on the confinement surface. Here, we investigate the surface hopping propagator that describes the position of the diffusing particle after a prescribed number of encounters with that surface. Th...

[Phys. Rev. E 102, 032125] Published Wed Sep 16, 2020

]]>Thermodynamic uncertainty relations (TURs) set fundamental bounds on the fluctuation and dissipation of stochastic systems. Here, we examine these bounds, in experiment and theory, by exploring the entire phase space of a cyclic information engine operating in a nonequilibrium steady state. Close to...

[Phys. Rev. E 102, 032126] Published Wed Sep 16, 2020

]]>Near the melting transition the bending elastic constant $\kappa $, an emergent property of double-stranded DNA (dsDNA), is shown not to follow the rodlike scaling for small-length $N$. The reduction in $\kappa $ with temperature is determined by the denatured bubbles for a continuous transition, e.g., when the two s...

[Phys. Rev. E 102, 032407] Published Wed Sep 16, 2020

]]>We propose a model of antibiotic diffusion through a bacterial biofilm when diffusion and/or absorption barriers develop in the biofilm. The idea of this model is: We deduce details of the diffusion process in a medium in which direct experimental study is difficult, based on probing diffusion in ex...

[Phys. Rev. E 102, 032408] Published Wed Sep 16, 2020

]]>It has long been known that transients in many excitable systems can be dramatically amplified, even when resulting from perturbations that are too small to excite spikes. The authors study noise amplification in three types of excitable systems commonly studied in mathematical biology. They find general conditions for dramatic amplification of fluctuations that are insensitive to system details.

[Phys. Rev. E 102, 032409] Published Wed Sep 16, 2020

]]>Molecular motion in polymers is frozen below the glass transition temperature ${T}_{g}$ and changes of viscoelastic functions are most spectacular near ${T}_{g}$. Exceptional enhancement of molecular mobility and a decrease of polymer viscosity, by several orders of magnitude, down to the viscous flow regime, ar...

[Phys. Rev. E 102, 032501] Published Wed Sep 16, 2020

]]>Swimmers and self-propelled particles are physical models for the collective behavior and motility of a wide variety of living systems, such as bacteria colonies, bird flocks, and fish schools. Such artificial active materials are amenable to physical models which reveal the microscopic mechanisms u...

[Phys. Rev. E 102, 032609] Published Wed Sep 16, 2020

]]>Intuition tells us that a rolling or spinning sphere will eventually stop due to the presence of friction and other dissipative interactions. The resistance to rolling and spinning or twisting torque that stops a sphere also changes the microstructure of a granular packing of frictional spheres by i...

[Phys. Rev. E 102, 032903] Published Wed Sep 16, 2020

]]>Design of slender artificial materials and morphogenesis of thin biological tissues typically involve stimulation of isolated regions (inclusions) in the growing body. These inclusions apply internal stresses on their surrounding areas that are ultimately relaxed by out-of-plane deformation (bucklin...

[Phys. Rev. E 102, 033004] Published Wed Sep 16, 2020

]]>This paper reports on the molecular dynamics simulations of classical two-dimensional (2D) electric dipole systems. The properties of 2D systems with bare (nonscreened) and screened dipole-dipole interactions have been investigated. Based on the polygon construction method, we present simulation res...

[Phys. Rev. E 102, 033205] Published Wed Sep 16, 2020

]]>Particle-in-cell and Monte Carlo collision (PIC-MCC) has been widely adopted as a simulation method for electric propulsion. However, neutral atoms move much more slowly than other species, which can cause a serious reduction in simulation speed. In this work, we investigate the view factor model in...

[Phys. Rev. E 102, 033311] Published Wed Sep 16, 2020

]]>In this paper we study the phase diagram of the five-state Potts antiferromagnet on the bisected-hexagonal lattice. This question is important since Delfino and Tartaglia recently showed that a second-order transition in a five-state Potts antiferromagnet is allowed, and the bisected-hexagonal latti...

[Phys. Rev. E 102, 032124] Published Tue Sep 15, 2020

]]>In this work, we show theoretically and numerically that a one-dimensional reaction-diffusion system, near the Turing bifurcation, produces different number of stripes when, in addition to random noise, the Fourier mode of a prepattern used to initialize the system changes. We also show that the Fou...

[Phys. Rev. E 102, 032214] Published Tue Sep 15, 2020

]]>Exploration of granular physics for three-dimensional geometries interacting with deformable media is crucial for further understanding of granular mechanics and vehicle-terrain dynamics. A modular screw propelled vehicle is, therefore, designed for testing the accuracy of a novel helical granular s...

[Phys. Rev. E 102, 032902] Published Tue Sep 15, 2020

]]>The mechanism of pressure-driven transport of simple liquid through a nanoporous graphene membrane has been analyzed using nonequilibrium molecular dynamics simulation. In this study, we investigate liquid dynamics properties such as local density, pressure variation, and local viscosity depending o...

[Phys. Rev. E 102, 033110] Published Tue Sep 15, 2020

]]>In a recent paper by Fronczak *et al.* [Phys. Rev. E **101**, 022111 (2020)], a simple spin model has been studied in full detail via microcanonical approaches. The authors stress that the range of microcanonical temperature ${\beta}_{m}\phantom{\rule{0.16em}{0ex}}>\phantom{\rule{0.16em}{0ex}}1$ is unattainable in this model and the system undergoes a phase transition...

[Phys. Rev. E 102, 036101] Published Tue Sep 15, 2020

]]>In the present Reply we show that a Comment casting doubts on the results of our recent paper [Fronczak, Fronczak, and Siudem, Phys. Rev. E **101**, 022111 (2020)] results from a misunderstanding of the assumptions of our model and from overinterpretation based on this misunderstanding.

[Phys. Rev. E 102, 036102] Published Tue Sep 15, 2020

]]>The success of deep-learning algorithms is surprising in light of the limited theoretical results available from statistical physics and computer science. The authors develop tools that show how specific properties of the data structure influence the effectiveness of these algorithms.

[Phys. Rev. E 102, 032119] Published Mon Sep 14, 2020

]]>Imitation and aspiration update rules are frequently observed in human and animal populations. While the imitation process entails payoff comparisons with surroundings, the aspiration process refers to self-evaluation. This work explores the evolution of cooperation in dyadic games under the coexist...

[Phys. Rev. E 102, 032120] Published Mon Sep 14, 2020

]]>We focus here on the thermodynamic properties of adsorbates formed by two-species $A+B\to \oslash $ reactions on a one-dimensional infinite lattice with heterogeneous “catalytic” properties. In our model hard-core $A$ and $B$ particles undergo continuous exchanges with their reservoirs and react when dissimilar spe...

[Phys. Rev. E 102, 032121] Published Mon Sep 14, 2020

]]>For a classical system with long-range interactions, a soft mode exists whenever a stationary state spontaneously breaks a continuous symmetry of the Hamiltonian. Besides that, if the corresponding coordinate associated to the symmetry breaking is periodic, then the same energy of the different stat...

[Phys. Rev. E 102, 032122] Published Mon Sep 14, 2020

]]>Numerical simulations and finite-size scaling analysis have been performed to study the jamming and percolation behavior of elongated objects deposited on two-dimensional honeycomb lattices. The depositing particle is modeled as a linear array of length $k$ (so-called $k$-mer), maximizing the distance b...

[Phys. Rev. E 102, 032123] Published Mon Sep 14, 2020

]]>We carry out Monte Carlo simulations of a colloidal fluid membrane with a free edge and composed of chiral rodlike viruses. The membrane is modeled by a triangular mesh of beads connected by bonds in which the bonds and beads are free to move at each Monte Carlo step. Since the constituent viruses a...

[Phys. Rev. E 102, 032608] Published Mon Sep 14, 2020

]]>Collapse modes in compressed simple cubic (SC) and body-centered cubic (BCC) periodic arrangements of elastic frictionless beads were studied numerically using the discrete element method. Under pure hydrostatic compression, the SC arrangement tends to transform into a defective hexagonal close-pack...

[Phys. Rev. E 102, 032901] Published Mon Sep 14, 2020

]]>Nowadays metamaterials are at the focus of an intense research as promising for thermal and acoustic engineering. However, the computational cost associated to the large system size required for correctly simulating them imposes the use of finite-elements simulations, developing continuum models, ab...

[Phys. Rev. E 102, 033003] Published Mon Sep 14, 2020

]]>We show that similarly to the logarithmic mean-velocity profile in wall-bounded turbulence, the landscape topography presents an intermediate region with a logarithmic mean-elevation profile. Such profiles are present in complex topographies with channel branching and fractal river networks resultin...

[Phys. Rev. E 102, 033107] Published Mon Sep 14, 2020

]]>When excited at sufficiently high acoustic pressures, a wall-attached bubble may exhibit asymmetric nonspherical modes. These vibration modes can be decomposed over the set of spherical harmonics ${Y}_{nm}(\theta ,\varphi )$ for a degree $n$ and order $m$. We experimentally capture the time-resolved dynamics of asymmetric ...

[Phys. Rev. E 102, 033108] Published Mon Sep 14, 2020

]]>Recent experimental results indicate that mixing is enhanced by a reciprocal flow induced inside a levitated droplet with an oscillatory deformation [T. Watanabe *et al.*, Sci. Rep. **8**, 10221 (2018)]. Generally, reciprocal flow cannot convect the solutes in time average, and agitation cannot take place...

[Phys. Rev. E 102, 033109] Published Mon Sep 14, 2020

]]>The resources needed for particle-in-cell simulations of laser wakefield acceleration can be greatly reduced in many cases of interest using an envelope model. However, the inclusion of tunneling ionization in this time-averaged treatment of laser-plasma acceleration is not straightforward, since th...

[Phys. Rev. E 102, 033204] Published Mon Sep 14, 2020

]]>A kinetic inviscid flux (KIF) is proposed for simulating incompressible and compressible flows. It is constructed based on the direct modeling of multiscale flow behaviors, which is used in the gas-kinetic scheme (GKS), the unified gas-kinetic scheme (UGKS), the discrete unified gas-kinetic scheme (...

[Phys. Rev. E 102, 033310] Published Mon Sep 14, 2020

]]>We investigate how confinement may drastically change both the probability density of the first-encounter time and the associated survival probability in the case of two diffusing particles. To obtain analytical insights into this problem, we focus on two one-dimensional settings: a half-line and an...

[Phys. Rev. E 102, 032118] Published Fri Sep 11, 2020

]]>The Bonabeau model of self-organized hierarchy formation is studied by using a piecewise linear approximation to the sigmoid function. Simulations of the piecewise-linear agent model show that there exist two-level and three-level hierarchical solutions and that each agent exhibits a transition from...

[Phys. Rev. E 102, 032213] Published Fri Sep 11, 2020

]]>We consider a red-versus-blue coupled synchronization and spatial swarming (i.e., swarmalator) model that incorporates attraction and repulsion terms and an adversarial game of phases. The model exhibits behaviors such as spontaneous emergence of tactical manoeuvres of envelopment (e.g., flanking, p...

[Phys. Rev. E 102, 032607] Published Fri Sep 11, 2020

]]>We present a method for evolving the projected Gross-Pitaevskii equation in an infinite rotating Bose-Einstein condensate, the ground state of which is a vortex lattice. We use quasiperiodic boundary conditions to investigate the behavior of the bulk superfluid in this system, in the absence of boun...

[Phys. Rev. E 102, 033309] Published Fri Sep 11, 2020

]]>The discrete circle map is the archetypical example of a driven periodic system, showing a complex resonance structure under a change of the forcing frequency known as the devil's staircase. Adler's equation can be seen as the direct continuous equivalent of the circle map, describing locking effect...

[Phys. Rev. E 102, 030201(R)] Published Thu Sep 10, 2020

]]>We investigate a simple forced harmonic oscillator with a natural frequency varying with time. It is shown that the time evolution of such a system can be written in a simplified form with Fresnel integrals, as long as the variation of the natural frequency is sufficiently slow compared to the time ...

[Phys. Rev. E 102, 032211] Published Thu Sep 10, 2020

]]>The quantum localization is one of the remarkable phenomena in the studies of quantum chaos and plays an important role in various contexts. Thus, an understanding of the properties of quantum localization is essential. In spite of much effort dedicated to investigating the manifestations of localiz...

[Phys. Rev. E 102, 032212] Published Thu Sep 10, 2020

]]>The structure of an evolving network contains information about its past. Extracting this information efficiently, however, is, in general, a difficult challenge. We formulate a fast and efficient method to estimate the most likely history of growing trees, based on exact results on root finding. We...

[Phys. Rev. E 102, 032304] Published Thu Sep 10, 2020

]]>How can we develop simple yet realistic models of the small neural circuits known as central pattern generators (CPGs), which contribute to generate complex multiphase locomotion in living animals? In this paper we introduce a new model (with design criteria) of a generalized half-center oscillator,...

[Phys. Rev. E 102, 032406] Published Thu Sep 10, 2020

]]>A hydrogen-bonding network or hydrogen-bonded cluster is formed in many hydrogen-bonded glass formers. It determines the dynamics of structural α relaxation and the Johari-Goldstein (JG) β relaxation because breaking of hydrogen bonds is the prerequisite. However, the networks and clusters can be su...

[Phys. Rev. E 102, 032606] Published Thu Sep 10, 2020

]]>Smectic liquid crystals with a layering order of rodlike molecules can be drawn in the form of free standing films across holes. Extensive experimental studies have shown that smectic-*C* (Sm*C*) liquid crystals (LCs) with tilted molecules form periodic stripes in the thinner parts of the meniscus, whic...

[Phys. Rev. E 102, 032701] Published Thu Sep 10, 2020

]]>The dewetting dynamics of a supported bilayer polymer thin film on a solid substrate is investigated using grazing incidence x-ray photon correlation spectroscopy. We find that the top layer dewets via the spinodal mechanism. The kinetics of the dewetting is studied by monitoring the time evolution ...

[Phys. Rev. E 102, 032802] Published Thu Sep 10, 2020

]]>Two-dimensional surfaces in three-dimensional space, like sheets of paper or graphene, can deform by locally buckling out of the plane. The authors study a model of a membrane containing a periodic array of impurities that cause buckling, and find interesting effects such as pattern formation.

[Phys. Rev. E 102, 033002] Published Thu Sep 10, 2020

]]>We introduce an image-based algorithm to find the probability density function (PDF) of particle displacements from a sequence of images. Conventionally methods based on cross correlation (CC) of image ensembles estimate the standard deviation of an assumed Gaussian PDF from the width of the CC peak...

[Phys. Rev. E 102, 033305] Published Thu Sep 10, 2020

]]>We compare the convergence of several flat-histogram methods applied to the two-dimensional Ising model, including the recently introduced stochastic approximation with a dynamic update factor (SAD) method. We compare this method to the Wang-Landau (WL) method, the $1/t$ variant of the WL method, and ...

[Phys. Rev. E 102, 033306] Published Thu Sep 10, 2020

]]>One attractive feature of the original pseudopotential method consists on its simplicity of adding a force dependent on a nearest-neighbor potential function. In order to improve the method, regarding thermodynamic consistency and control of surface tension, different approaches were developed in th...

[Phys. Rev. E 102, 033307] Published Thu Sep 10, 2020

]]>We succeeded in simultaneously cloaking and concentrating direct current in a conducting material through topology optimization based on a level-set method. To design structures that perform these functions simultaneously, optimal topology is explored for improving two objective functions that gover...

[Phys. Rev. E 102, 033308] Published Thu Sep 10, 2020

]]>The validity of the fluctuation relations (FRs) for systems in a constant magnetic field is investigated. Recently introduced time-reversal symmetries that hold in the presence of static electric and magnetic fields and of deterministic thermostats are used to prove the transient FRs without invokin...

[Phys. Rev. E 102, 030101(R)] Published Wed Sep 09, 2020

]]>We analyze the stochastic thermodynamics of systems with a continuous space of states. The evolution equation, the rate of entropy production, and other results are obtained by a continuous time limit of a discrete time formulation. We point out the role of time reversal and of the dissipation part ...

[Phys. Rev. E 102, 032114] Published Wed Sep 09, 2020

]]>Zero-determinant (ZD) strategies are a novel class of strategies in the repeated prisoner's dilemma (RPD) game discovered by Press and Dyson. This strategy set enforces a linear payoff relationship between a focal player and the opponent regardless of the opponent's strategy. In the RPD game, games ...

[Phys. Rev. E 102, 032115] Published Wed Sep 09, 2020

]]>Microorganisms such as bacteria are active matter which consume chemical energy and generate their unique run-and-tumble motion. A swarm of such microorganisms provide a nonequilibrium active environment whose noise characteristics are different from those of thermal equilibrium reservoirs. One impo...

[Phys. Rev. E 102, 032116] Published Wed Sep 09, 2020

]]>Deriving evolution equations accounting for both anomalous diffusion and reactions is notoriously difficult, even in the simplest cases. In contrast to normal diffusion, reaction kinetics cannot be incorporated into evolution equations modeling subdiffusion by merely adding reaction terms to the equ...

[Phys. Rev. E 102, 032117] Published Wed Sep 09, 2020

]]>The evaporation of the liquid droplet on a structured surface is numerically investigated using the lattice Boltzmann method. Simulations are carried out for different contact angles and pillar widths. From the simulation for the Cassie state, it is found that the evaporation starts in a pinned cont...

[Phys. Rev. E 102, 033106] Published Wed Sep 09, 2020

]]>We propose the use of Monte Carlo histogram reweighting to extrapolate predictions of machine learning methods. In our approach, we treat the output from a convolutional neural network as an observable in a statistical system, enabling its extrapolation over continuous ranges in parameter space. We ...

[Phys. Rev. E 102, 033303] Published Wed Sep 09, 2020

]]>This Rapid Communication reports on the observation of an interesting phenomenon: the shape, especially the length, of a microwave plasma jet (MPJ) can be clearly influenced by simply placing a conductor near the plasma source, particularly when the nearby conductor is in contact with the external c...

[Phys. Rev. E 102, 031201(R)] Published Tue Sep 08, 2020

]]>The correlated projection superoperator techniques provide a better understanding about how correlations lead to strong non-Markovian effects in open quantum systems. Their superoperators are independent of initial state, which may not be suitable for some cases. To improve this, we develop another ...

[Phys. Rev. E 102, 032107] Published Tue Sep 08, 2020

]]>Fractional Brownian motion (FBM), a non-Markovian self-similar Gaussian stochastic process with long-ranged correlations, represents a widely applied, paradigmatic mathematical model of anomalous diffusion. We report the results of large-scale computer simulations of FBM in one, two, and three dimen...

[Phys. Rev. E 102, 032108] Published Tue Sep 08, 2020

]]>We use queueing theory to develop a general framework for analyzing search processes with stochastic resetting, under the additional assumption that following absorption by a target, the particle (searcher) delivers a packet of resources to the target and the search process restarts at the reset poi...

[Phys. Rev. E 102, 032109] Published Tue Sep 08, 2020

]]>We develop a phenomenological model to describe the structure of radially symmetric paracrystals whose long-range order are destroyed by propagation of particle fluctuations. General expressions are derived for the spatial correlation functions in one-, two-, and three-dimensional spaces. And the sp...

[Phys. Rev. E 102, 032110] Published Tue Sep 08, 2020

]]>Reaction-diffusion equations are widely used as the governing evolution equations for modeling many physical, chemical, and biological processes. Here we derive reaction-diffusion equations to model transport with reactions on a one-dimensional domain that is evolving. The model equations, which hav...

[Phys. Rev. E 102, 032111] Published Tue Sep 08, 2020

]]>We study instantaneous quenches from infinite temperature to well below ${T}_{c}$ in the two-dimensional square lattice Ising antiferromagnet in the presence of a longitudinal external magnetic field. Under single-spin-flip Metropolis algorithm Monte Carlo dynamics, this protocol produces a pair of magneti...

[Phys. Rev. E 102, 032112] Published Tue Sep 08, 2020

]]>Critical properties of a geometrically frustrated generalized $XY$ model with antiferromagnetic (AFM) and third-order antinematic (AN3) couplings on a triangular lattice are studied by Monte Carlo simulation. It is found that such a generalization leads to a phase diagram consisting of three different...

[Phys. Rev. E 102, 032113] Published Tue Sep 08, 2020

]]>A theoretical study is presented for the random aspect of an optical vortex inherent in the nonlinear birefringent Kerr effect, which is called the optical spin vortex. We start with the two-component nonlinear Schrödinger equation. The vortex is inherent in the spin texture caused by an anisotropy ...

[Phys. Rev. E 102, 032204] Published Tue Sep 08, 2020

]]>The present paper shows that the amplitudes of oscillators in delay-coupled oscillator networks can be suppressed by switching the network topology at a rate much lower than the oscillator frequencies. The mechanism of suppression was clarified numerically, and a procedure for determining the connec...

[Phys. Rev. E 102, 032206] Published Tue Sep 08, 2020

]]>We investigate analytically and numerically the existence and dynamical stability of different localized modes in a two-dimensional photonic lattice comprising a square plaquette inscribed in the dodecagon lattices. The eigenvalue spectrum of the underlying linear lattice is characterized by a net f...

[Phys. Rev. E 102, 032207] Published Tue Sep 08, 2020

]]>We study dynamical signatures of quantum chaos in one of the most relevant models in many-body quantum mechanics, the Bose-Hubbard model, whose high degree of symmetries yields a large number of invariant subspaces and degenerate energy levels. The standard procedure to reveal signatures of quantum ...

[Phys. Rev. E 102, 032208] Published Tue Sep 08, 2020

]]>The Van der Pol equation is a paradigmatic model of relaxation oscillations. This remarkable nonlinear phenomenon of self-sustained oscillatory motion underlies important rhythmic processes in nature and electrical engineering. Relaxation oscillations in a real system are usually coupled to environm...

[Phys. Rev. E 102, 032209] Published Tue Sep 08, 2020

]]>Many complex systems occurring in the natural or social sciences or economics are frequently described on a microscopic level, e.g., by lattice- or agent-based models. To analyze the states of such systems and their bifurcation structure on the level of macroscopic observables, one has to rely on eq...

[Phys. Rev. E 102, 032210] Published Tue Sep 08, 2020

]]>We provide a general framework to model the growth of networks consisting of different coupled layers. Our aim is to estimate the impact of one such layer on the dynamics of the others. As an application, we study a scientometric network, where one layer consists of publications as nodes and citatio...

[Phys. Rev. E 102, 032303] Published Tue Sep 08, 2020

]]>Base pairing is a fundamental phenomenon in RNA structure and function. However, although there have been considerable recent advances, some important aspects of base-pair formation are still unknown, including the ways of base-pair formation and detailed roles of metal ions. Here we show that base ...

[Phys. Rev. E 102, 032403] Published Tue Sep 08, 2020

]]>The phenomenology of Landau theory with spatial coupling through diffusion has been widely used in the study of phase transitions and patterning. Here we follow this theory and apply it to study theoretically and numerically continuous and discontinuous transitions to periodic spatial cellular patte...

[Phys. Rev. E 102, 032404] Published Tue Sep 08, 2020

]]>We study the effects of the intrinsic curvature (IC), intrinsic twist rate (ITR), anisotropic bending rigidities, sequence disorder, and temperature ($T$) on the persistence length (${l}_{p}$) of a two- or three-dimensional semiflexible biopolymer. We develop some general expressions to evaluate exactly thes...

[Phys. Rev. E 102, 032405] Published Tue Sep 08, 2020

]]>We present theoretical calculations of the characteristics of the static magnetic response of multicore magnetic nanoparticles. These particles contain a considerable number ($\sim {10}^{2}$) of single-domain magnetic nanocrystallites, which are modeled as uniformly magnetized balls with uniaxial magnetocrysta...

[Phys. Rev. E 102, 032603] Published Tue Sep 08, 2020

]]>We show that the self-part of the Van Hove function—the correlation function describing the dynamics of a single molecule—of water can be determined through a high-resolution inelastic x-ray scattering experiment. The measurement of inelastic x-ray scattering up to $10\phantom{\rule{0.16em}{0ex}}\phantom{\rule{0.16em}{0ex}}{\AA}^{-1}$ makes it possible to convert...

[Phys. Rev. E 102, 032604] Published Tue Sep 08, 2020

]]>Here we report on compression experiments of colloidal pillars in which the evolution of a shear band can be followed at the particle level during deformation. Quasistatic deformation results in dilation and anisotropic changes in coordination in a localized band of material. Additionally, a transit...

[Phys. Rev. E 102, 032605] Published Tue Sep 08, 2020

]]>This paper is the second in a two-part exposition on *surface-directed spinodal decomposition* (SDSD), i.e., the interplay of kinetics of wetting and phase separation at a surface which is wetted by one of the components of a binary mixture. In our first paper [P. Das, P. K. Jaiswal, and S. Puri, Phys...

[Phys. Rev. E 102, 032801] Published Tue Sep 08, 2020

]]>The interaction between thin elastic films and soft-adhesive foundations has recently gained interest due to technological applications that require control over such objects. Motivated by these applications we investigate the equilibrium configuration of an open cylindrical shell with natural curva...

[Phys. Rev. E 102, 033001] Published Tue Sep 08, 2020

]]>Nondilute transport occurs routinely in porous medium systems. Experimental observations have revealed effects that seemingly depend upon density, viscosity, velocity, and chemical activity. Macroscale models based upon averaged behavior over many pores have been relied upon to describe such systems...

[Phys. Rev. E 102, 033104] Published Tue Sep 08, 2020

]]>We investigate the forcing strength needed to sustain a flow using linear forcing. A critical Reynolds number ${R}_{c}$ is determined, based on the longest wavelength allowed by the system, the forcing strength and the viscosity. A simple model is proposed for the dissipation rate, leading to a closed expr...

[Phys. Rev. E 102, 033105] Published Tue Sep 08, 2020

]]>We study the finite-time erasure of a one-bit memory consisting of a one-dimensional double-well potential, with each well encoding a memory macrostate. We focus on setups that provide full control over the form of the potential-energy landscape and derive protocols that minimize the average work ne...

[Phys. Rev. E 102, 032105] Published Thu Sep 03, 2020

]]>We develop the framework of classical observational entropy, which is a mathematically rigorous and precise framework for nonequilibrium thermodynamics, explicitly defined in terms of a set of observables. Observational entropy can be seen as a generalization of Boltzmann entropy to systems with ind...

[Phys. Rev. E 102, 032106] Published Thu Sep 03, 2020

]]>A novel type of waves is examined in the context of non-Hermitian photonics. We can identify a class of complex guided structures that support localized paraxial solutions whose intensity distribution is exactly the same as the intensity of a corresponding solution in homogeneous media (free or bulk...

[Phys. Rev. E 102, 032203] Published Thu Sep 03, 2020

]]>We investigate the heterogeneity of outcomes of repeated instances of percolation experiments in complex networks using a message-passing approach to evaluate heterogeneous, node-dependent probabilities of belonging to the giant or percolating cluster, i.e., the set of mutually connected nodes whose...

[Phys. Rev. E 102, 032302] Published Thu Sep 03, 2020

]]>We study both numerically and experimentally the breakup of a viscoelastic liquid bridge formed between two parallel electrodes. The polymer solutions and applied voltages are those commonly used in electrospinning and near-field electrospinning. We solve the leaky-dielectric finitely extensible non...

[Phys. Rev. E 102, 033103] Published Thu Sep 03, 2020

]]>Magnetic reconnection in a relativistic electron magnetization regime was observed in a laboratory plasma produced by a high-intensity, large energy, picoseconds laser pulse. Magnetic reconnection conditions realized with a laser-driven several kilotesla magnetic field is comparable to that in the a...

[Phys. Rev. E 102, 033202] Published Thu Sep 03, 2020

]]>In this paper we study thermodynamic properties of uniform electron gas (UEG) over wide density and temperature range, using the improved fermionic-path-integral Monte Carlo (FPIMC) method. This method demonstrates a significant reduction of the “fermionic sign problem,” which takes place in standar...

[Phys. Rev. E 102, 033203] Published Thu Sep 03, 2020

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