The coupling of stochastic growth and shrinkage of one-dimensional structures to random aging of the constituting subunits defines the simple association-dissociation-aging process which captures the essential features of the nonequilibrium assembly of cytoskeletal filaments. Because of correlations…

[Phys. Rev. E 92, 052137] Published Wed Nov 25, 2015

]]>A general formalism is developed for constructing modified Hamiltonian dynamical systems which preserve a canonical equilibrium distribution by adding a time evolution equation for a single additional thermostat variable. When such systems are ergodic, canonical ensemble averages can be computed as …

[Phys. Rev. E 92, 052138] Published Wed Nov 25, 2015

]]>In this work, we consider a stochastic oscillator described by a discrete-state continuous-time Markov chain, in which the states are arranged in a circle, and there is a constant probability per unit time of jumping from one state to the next in a specified direction around the circle. At each of a…

[Phys. Rev. E 92, 052718] Published Wed Nov 25, 2015

]]>A diverse variety of processes—including recurrent disease episodes, neuron firing, and communication patterns among humans—can be described using interevent time (IET) distributions. Many such processes are ongoing, although event sequences are only available during a finite observation window. Bec…

[Phys. Rev. E 92, 052813] Published Wed Nov 25, 2015

]]>We present a systematic derivation of the Biot-Savart equation from the nonlinear Schrödinger equation, in the limit when the curvature radius of vortex lines and the intervortex distance are much greater than the vortex healing length, or core radius. We derive the Biot-Savart equations in Hamilton…

[Phys. Rev. E 92, 053019] Published Wed Nov 25, 2015

]]>Time-integrated x-ray emission spectra of laser-irradiated Au disks were recorded using transmission grating spectrometry, at laser intensities of ${10}^{13}$ to ${10}^{14}\phantom{\rule{4pt}{0ex}}\text{W}/{\mathrm{cm}}^{2}$. Radiation-hydrodynamics and atomic physics calculations were used to simulate the emitted spectra. Three major plasma regions can be r…

[Phys. Rev. E 92, 053111] Published Wed Nov 25, 2015

]]>Linear and nonlinear ion-acoustic waves are studied in a fluid model for nonrelativistic, unmagnetized quantum plasma with electrons with an arbitrary degeneracy degree. The equation of state for electrons follows from a local Fermi-Dirac distribution function and applies equally well both to fully …

[Phys. Rev. E 92, 053112] Published Wed Nov 25, 2015

]]>The effects of the helicity on the dynamics of turbulent flows are investigated. The aim is to disentangle the role of helicity in fixing the direction, the intensity, and the fluctuations of the energy transfer across the inertial range of scales. We introduce an external parameter $\alpha $ that controls …

[Phys. Rev. E 92, 051002(R)] Published Tue Nov 24, 2015

]]>A variability measure of the times of uniform events based on a shot-noise process is proposed and studied. The measure is inspired by the Fano factor, which we generalize by considering the time-weighted influence of the events given by a shot-noise response function. The sequence of events is assu…

[Phys. Rev. E 92, 052135] Published Tue Nov 24, 2015

]]>Information thermodynamics provides a framework for studying the effect of feedback loops on entropy production. It has enabled the understanding of novel thermodynamic systems such as the information engine, which can be seen as a modern version of “Maxwell's Dæmon,” whereby a feedback controller p…

[Phys. Rev. E 92, 052136] Published Tue Nov 24, 2015

]]>We report the observation of a surprising phenomenon consisting in a oscillating phase transition which appears in a binary mixture when this is enlightened by a strongly focused infrared laser beam. The mixture is poly-methyl-meth-acrylate (PMMA)–3-octanone, which has an upper critical solution tem…

[Phys. Rev. E 92, 052312] Published Tue Nov 24, 2015

]]>The evolution of the surface roughness $W$ of a thin film deposited on a rough substrate is studied with a model of temperature-activated adatom diffusion, irreversible lateral aggregation, and no step energy barrier, in which the main parameter is the ratio $R$ of diffusion and deposition rates. At suf…

[Phys. Rev. E 92, 052405] Published Tue Nov 24, 2015

]]>Anomalous spectral shift of transmission peaks is observed in a Fabry-Pérot cavity filled with a chiral anisotropic medium. The effective refractive index value resides out of the interval between the ordinary and the extraordinary refractive indices. The spectral shift is explained by contribution …

[Phys. Rev. E 92, 052504] Published Tue Nov 24, 2015

]]>We study a nonlinear $q$-voter model with stochastic noise, interpreted in the social context as independence, on a duplex network. To study the role of the multilevelness in this model we propose three methods of transferring the model from a mono- to a multiplex network. They take into account two c…

[Phys. Rev. E 92, 052812] Published Tue Nov 24, 2015

]]>In this paper, we report the synchronized dynamics of cells with activator-inhibitor pathways via an adaptive environment-mediated coupling scheme with feedbacks and control mechanisms. The adaptive character of the extracellular medium is modeled via its damping parameter as a physiological respons…

[Phys. Rev. E 92, 052911] Published Tue Nov 24, 2015

]]>We conducted a molecular dynamics simulation to investigate current inversions in a nanosized water pump based on a single-walled carbon nanotube powered by mechanical vibration. It was found that the water current depended sensitively on the frequency of mechanical vibration. Especially in the reso…

[Phys. Rev. E 92, 053017] Published Tue Nov 24, 2015

]]>We investigate the Taylor-Couette system where the radius ratio is close to unity. Systematically increasing the Reynolds number, we observe a number of previously known transitions, such as one from the classical Taylor vortex flow (TVF) to wavy vortex flow (WVF) and the transition to fully develop…

[Phys. Rev. E 92, 053018] Published Tue Nov 24, 2015

]]>The energy loss of light ions in dense plasmas is investigated with special focus on low to medium projectile energies, i.e., at velocities where the maximum of the stopping power occurs. In this region, exceptionally large theoretical uncertainties remain and no conclusive experimental data are ava…

[Phys. Rev. E 92, 053109] Published Tue Nov 24, 2015

]]>We present molecular dynamics (MD) calculations of shear viscosity for asymmetric mixed plasma for thermodynamic conditions relevant to astrophysical and inertial confinement fusion plasmas. Specifically, we consider mixtures of deuterium and argon at temperatures of 100–500 eV and a number density …

[Phys. Rev. E 92, 053110] Published Tue Nov 24, 2015

]]>We have studied Markov processes on denumerable state space and continuous time. We found that all these processes are connected via gauge transformations. We have used this result before as a method to resolve equations, included the case in a previous work in which the sample space is time-depende…

[Phys. Rev. E 92, 052132] Published Mon Nov 23, 2015

]]>We consider local heating of a part of a two-dimensional bilobal enclosure of a varying cross section confining a system of overdamped Brownian particles. Since varying cross section in higher dimension results in an entropic potential in lower dimension, local heating alters the relative stability …

[Phys. Rev. E 92, 052133] Published Mon Nov 23, 2015

]]>We show that the complex connectivity of percolating networks of nanoparticles provides a natural solid-state system in which bottom-up assembly provides a route to realization of neuromorphic behavior. Below the percolation threshold the networks comprise groups of particles separated by tunnel gap…

[Phys. Rev. E 92, 052134] Published Mon Nov 23, 2015

]]>A granular front emerges whenever the free-surface flow of a concentrated suspension spontaneously alters its internal structure, exhibiting a higher concentration of particles close to its front. This is a common and yet unexplained phenomenon, which is usually believed to be the result of fluid co…

[Phys. Rev. E 92, 052204] Published Mon Nov 23, 2015

]]>We consider a clustered network with small-world subnetworks of inhibitory fast spiking interneurons and investigate the effect of intermodular connection on the emergence of fast sparsely synchronized rhythms by varying both the intermodular coupling strength ${J}_{\mathrm{inter}}$ and the average number of interm…

[Phys. Rev. E 92, 052716] Published Mon Nov 23, 2015

]]>In this work we investigate a modified version of the Daisyworld model, originally introduced by Lovelock and Watson to describe in a simple way the interactions between an Earth-like planet, its biosphere, and the incoming solar radiation. Here a spatial dependency on latitude is included, and both…

[Phys. Rev. E 92, 052717] Published Mon Nov 23, 2015

]]>We investigate the survivor distributions of a spatially extended model of competitive dynamics in different geometries. The model consists of a deterministic dynamical system of individual agents at specified nodes, which might or might not survive the predatory dynamics: all stochasticity is broug…

[Phys. Rev. E 92, 052810] Published Mon Nov 23, 2015

]]>We examine Ising models with heat-bath dynamics on directed networks. Our simulations show that Ising models on directed triangular and simple cubic lattices undergo a phase transition that most likely belongs to the Ising universality class. On the directed square lattice the model remains paramagn…

[Phys. Rev. E 92, 052811] Published Mon Nov 23, 2015

]]>In vertically vibrated dense suspensions, several localized structures have been discovered, such as heaps, stable holes, expanding holes, and replicating holes. Because an inclined free fluid surface is difficult to maintain because of gravitational pressure, the mechanism of those structures is no…

[Phys. Rev. E 92, 053016] Published Mon Nov 23, 2015

]]>A high-order compact finite-difference lattice Boltzmann method (CFDLBM) is extended and applied to accurately simulate two-phase liquid-vapor flows with high density ratios. Herein, the He-Shan-Doolen-type lattice Boltzmann multiphase model is used and the spatial derivatives in the resulting equat…

[Phys. Rev. E 92, 053305] Published Mon Nov 23, 2015

]]>[Phys. Rev. E 92, 059902] Published Mon Nov 23, 2015

]]>[Phys. Rev. E 92, 059903] Published Mon Nov 23, 2015

]]>According to Rayleigh's criterion, rotating flows are linearly stable when their specific angular momentum increases radially outward. The celebrated magnetorotational instability opens a way to destabilize those flows, as long as the angular velocity is decreasing outward. Using a local approximati…

[Phys. Rev. E 92, 051001(R)] Published Fri Nov 20, 2015

]]>The special macroscopic properties of liquid water stem from its structure as a complex network of molecules connected by hydrogen bonds. While the dynamics of single molecules within this network has been extensively investigated, only little attention has been paid to the closed loops (meshes) of …

[Phys. Rev. E 92, 052130] Published Fri Nov 20, 2015

]]>We study the structure of quasiperiodic Lorentz gases, i.e., particles bouncing elastically off fixed obstacles arranged in quasiperiodic lattices. By employing a construction to embed such structures into a higher-dimensional periodic hyperlattice, we give a simple and efficient algorithm for numer…

[Phys. Rev. E 92, 052131] Published Fri Nov 20, 2015

]]>We investigate the nonequilibrium behavior of dense, plastic-crystalline suspensions of mildly anisotropic colloidal hard dumbbells under the action of an oscillatory shear field by employing Brownian dynamics computer simulations. In particular, we extend previous investigations, where we uncovered…

[Phys. Rev. E 92, 052311] Published Fri Nov 20, 2015

]]>We employ molecular dynamics simulations to study the wetting and evaporation of salt-water nanodroplets on platinum surfaces. Our results show that the contact angle of the droplets increases with the salt concentration. To verify this, a second simulation system of a thin salt-water film on a plat…

[Phys. Rev. E 92, 052403] Published Fri Nov 20, 2015

]]>Recent progress in material chemistry and surface engineering has led to emergence of new electrode materials with unique physical and electrochemical properties. Here, we introduce a physical model describing charging of ideal polarizable electrode-electrolyte interface where the electrode is chara…

[Phys. Rev. E 92, 052404] Published Fri Nov 20, 2015

]]>The entropic effects in the comicellization behavior of amphiphilic $AB$ copolymers differing in the chain size of solvophilic $A$ parts were studied by means of molecular dynamics simulations. In particular, mixtures of miktoarm star copolymers differing in the molecular weight of solvophilic arms were…

[Phys. Rev. E 92, 052601] Published Fri Nov 20, 2015

]]>Spontaneous calcium release (SCR) occurs when ion channel fluctuations lead to the nucleation of calcium waves in cardiac cells. This phenomenon is important since it has been implicated as a cause of various cardiac arrhythmias. However, to date, it is not understood what determines the timing and …

[Phys. Rev. E 92, 052715] Published Fri Nov 20, 2015

]]>The dynamics and bifurcations of convective waves in rotating and buoyancy-driven spherical Rayleigh-Bénard convection are investigated numerically. The solution branches that arise as rotating waves (RWs) are traced by means of path-following methods, by varying the Rayleigh number as a control par…

[Phys. Rev. E 92, 053015] Published Fri Nov 20, 2015

]]>We report on experimental and theoretical studies of the fluctuation-induced escape time from a metastable state of a nanomechanical Duffing resonator in a cryogenic environment. By tuning *in situ* the nonlinear coefficient $\gamma $ we could explore a wide range of the parameter space around the bifurcation…

[Phys. Rev. E 92, 050903(R)] Published Thu Nov 19, 2015

]]>The authors consider a one-dimensional random walk in which the walker can randomly reset its path by jumping to its farthest (rightmost) visited position. This scheme can be studied analytically, and may have applications to current problems in reactions, animal behavior, and search strategies.

[Phys. Rev. E 92, 052126] Published Thu Nov 19, 2015

]]>We consider the diffusive motion of a particle performing a random walk with Lévy distributed jump lengths and subject to a resetting mechanism, bringing the walker to an initial position at uniformly distributed times. In the limit of an infinite number of steps and for long times, the process conv…

[Phys. Rev. E 92, 052127] Published Thu Nov 19, 2015

]]>Studies over the past decade have reported power-law distributions for the areas of terrestrial lakes and Arctic melt ponds, as well as fractal relationships between their areas and coastlines. Here we report similar fractal structure of ponds in a tidal flat, thereby extending the spatial and tempo…

[Phys. Rev. E 92, 052128] Published Thu Nov 19, 2015

]]>This paper presents studies of dielectric response of chosen Schiff bases, which have similar molecular structures with different isomerizations of an azomethine bridging group, alkyloxy chain length with $n=5$ or $n=6$ carbon atoms, and a bromine or chlorine halogen terminal atom. Significant differenc…

[Phys. Rev. E 92, 052503] Published Thu Nov 19, 2015

]]>Using the totally asymmetric simple-exclusion-process and mean-field transport theory, we investigate the transport in closed random networks with simple crossing topology—two incoming, two outgoing segments, as a model for molecular motor motion along biopolymer networks. Inspired by *in vitro* obser…

[Phys. Rev. E 92, 052714] Published Thu Nov 19, 2015

]]>One of the most widely used methods for community detection in networks is the maximization of the quality function known as modularity. Of the many maximization techniques that have been used in this context, some of the most conceptually attractive are the spectral methods, which are based on the …

[Phys. Rev. E 92, 052808] Published Thu Nov 19, 2015

]]>We consider the question of determining how the topological structure influences a consensus dynamical processes taking place on a network. By considering a large data set of real-world networks we first determine that the removal of edges according to their communicability angle, an angle between p…

[Phys. Rev. E 92, 052809] Published Thu Nov 19, 2015

]]>We analyze the performance of quantum annealing as a heuristic optimization method to find the absolute minimum of various continuous models, including landscapes with only two wells and also models with many competing minima and with disorder. The simulations performed using a projective quantum Mo…

[Phys. Rev. E 92, 053304] Published Thu Nov 19, 2015

]]>[Phys. Rev. E 92, 059901] Published Thu Nov 19, 2015

]]>A universality in optimization of trade-off between power and efficiency for low-dissipation Carnot cycles is presented. It is shown that any trade-off measure expressible in terms of efficiency and the ratio of power to its maximum value can be optimized independently of most details of the dynamic…

[Phys. Rev. E 92, 052125] Published Wed Nov 18, 2015

]]>Lattice Boltzmann Stokesian dynamics (LBSD) is presented for simulation of particle suspension in Stokes flows. This method is developed from Stokesian dynamics (SD) with resistance and mobility matrices calculated using the time-independent lattice Boltzmann algorithm (TILBA). TILBA is distinguishe…

[Phys. Rev. E 92, 053303] Published Wed Nov 18, 2015

]]>It is well-known that the quantum linear response theory is based on the first-order perturbation theory for a system in thermal equilibrium. Hence, this theory breaks down when the system is in a steady state far from thermal equilibrium and the response up to higher order in perturbation is not ne…

[Phys. Rev. E 92, 052122] Published Tue Nov 17, 2015

]]>In the thermodynamic limit, systems with long-range interactions do not relax to equilibrium, but become trapped in nonequilibrium stationary states. For a finite number of particles a nonequilibrium state has a finite lifetime, so that eventually a system will relax to thermodynamic equilibrium. Th…

[Phys. Rev. E 92, 052123] Published Tue Nov 17, 2015

]]>We study the effects of rapid temperature and magnetic field changes on the nonequilibrium relaxation dynamics of magnetic vortex lines in disordered type-II superconductors by employing an elastic line model and performing Langevin molecular dynamics simulations. In a previously equilibrated system…

[Phys. Rev. E 92, 052124] Published Tue Nov 17, 2015

]]>When put in contact with a large liquid drop, dry foams wick owing to surface-tension-driven flows until reaching equilibrium. This work is devoted to the dynamics of this imbibition process. We consider imbibition of both wetting or nonwetting liquid, by putting the dry foam into contact either wit…

[Phys. Rev. E 92, 053014] Published Tue Nov 17, 2015

]]>A scheme for enhanced quantum electrodynamics (QED) production of electron-positron-pair plasmas is proposed that uses two ultraintense lasers irradiating a thin solid foil from opposite sides. In the scheme, under a proper matching condition, in addition to the skin-depth emission of $\gamma $-ray photons …

[Phys. Rev. E 92, 053107] Published Tue Nov 17, 2015

]]>We present a self-consistent semianalytical model of the relativistic plasma mirror, based on the *exact* computation of the laser-driven electron surface oscillations within the cold-fluid approximation. Valid for arbitrary solid densities, laser incidence angle, and a large set of laser intensities …

[Phys. Rev. E 92, 053108] Published Tue Nov 17, 2015

]]>We report here energetic $(>100\phantom{\rule{0.16em}{0ex}}\mathrm{keV})$ negative hydrogen ions $\left({\mathrm{H}}^{-}\right)$ generated in the interaction of moderately intense $\left({10}^{18}\phantom{\rule{0.16em}{0ex}}\mathrm{W}\phantom{\rule{0.16em}{0ex}}\mathrm{c}{\mathrm{m}}^{-2}\right)$ ultrashort laser pulses (45 fs) with transparent hydrogen containing solid targets. An unambiguous and consistent detection of negative hydrogen ions, with a flux of $8\times {10}^{\mathrm{1\dots}}$

[Phys. Rev. E 92, 051103(R)] Published Mon Nov 16, 2015

]]>In this work, a physical system described by the Hamiltonian ${\mathbf{H}}_{\omega}={\mathbf{H}}_{0}+{\mathbf{V}}_{\omega}\left(t\right)$ consisting of a solvable model ${\mathbf{H}}_{0}$ and external random and time-dependent potential ${\mathbf{V}}_{\omega}\left(t\right)$ is investigated. Under the conditions in which, for each realization, the potential changes smoothly so that the evolution of the system f…

[Phys. Rev. E 92, 052118] Published Mon Nov 16, 2015

]]>Many phenomena in nature are described by excitable systems driven by colored noise. The temporal correlations in the fluctuations hinder an analytical treatment. We here present a general method of reduction to a white-noise system, capturing the color of the noise by effective and time-dependent b…

[Phys. Rev. E 92, 052119] Published Mon Nov 16, 2015

]]>A long-standing goal of nonequilibrium statistical mechanics has been to extend the conceptual power of the Boltzmann distribution to driven systems. We report some new progress towards this goal. Instead of writing the nonequilibrium steady-state distribution in terms of perturbations around therma…

[Phys. Rev. E 92, 052120] Published Mon Nov 16, 2015

]]>In this paper we have presented the heat exchange between the two fermionic thermal reservoirs which are connected by a fermionic system. We have calculated the heat flux using solution of the $c$-number Langevin equation for the system. Assuming small temperature difference between the baths we have …

[Phys. Rev. E 92, 052121] Published Mon Nov 16, 2015

]]>We present a linear stability analysis of a planar metal electrode during steady electrodeposition. We extend the previous work of Sundstrom and Bark by accounting for the extended space-charge density, which develops at the cathode once the applied voltage exceeds a few thermal voltages. In accorda…

[Phys. Rev. E 92, 052310] Published Mon Nov 16, 2015

]]>We describe experiments and computer simulations of molecular deposition on a substrate in which the molecules (substituted adenine derivatives) self-assemble into ordered structures. The resulting structures depend strongly on the deposition rate (flux). In particular, there are two competing surfa…

[Phys. Rev. E 92, 052402] Published Mon Nov 16, 2015

]]>Cyclic dominance models, such as the classic rock-paper-scissors (RPS) game, have found real-world applications in biology, ecology, and sociology. A key quantity of interest in such models is the coexistence time, i.e., the time until at least one population type goes extinct. Much recent research …

[Phys. Rev. E 92, 052807] Published Mon Nov 16, 2015

]]>We report on the multistability of chaotic networks of silicon neurons and demonstrate how spatiotemporal sequences of voltage oscillations are selected with timed current stimuli. A three neuron central pattern generator was built by interconnecting Hodgkin-Huxley neurons with mutually inhibitory l…

[Phys. Rev. E 92, 052910] Published Mon Nov 16, 2015

]]>The field-theoretic renormalization group and the operator product expansion are applied to the model of passive vector (magnetic) field advected by a random turbulent velocity field. The latter is governed by the Navier-Stokes equation for compressible fluid, subject to external random force with t…

[Phys. Rev. E 92, 053013] Published Mon Nov 16, 2015

]]>It is shown that the filamentation instability of relativistically intense laser pulses in plasmas can be mitigated in the case where the laser beam has an elliptically distributed beam profile. A high-power elliptical Gaussian laser beam would break up into a regular filamentation pattern—in contra…

[Phys. Rev. E 92, 053106] Published Mon Nov 16, 2015

]]>Measurements of the structure of the electrostatic fields produced by the expansion of a laser-produced plasma into a background magnetized plasma are presented. The three-dimensional measurements of the electrostatic field are made using an emissive probe that measures the time-varying plasma poten…

[Phys. Rev. E 92, 051102(R)] Published Fri Nov 13, 2015

]]>We reexamine the well-studied one-dimensional spin-$1/2XY$ model to reveal its nontrivial energy spectrum, in particular the energy gap between the ground state and the first excited state. In the case of the isotropic $XY$ model, the $XX$ model, the gap behaves very irregularly as a function of the syst…

[Phys. Rev. E 92, 052116] Published Fri Nov 13, 2015

]]>Purely dissipative evolution equations are often cast as gradient flow structures, $\stackrel{\u0307}{\mathbf{z}}=K\left(\mathbf{z}\right)DS\left(\mathbf{z}\right)$, where the variable $\mathbf{z}$ of interest evolves towards the maximum of a functional $S$ according to a metric defined by an operator $K$. While the functional often follows immediately from physical considerations …

[Phys. Rev. E 92, 052117] Published Fri Nov 13, 2015

]]>We study droplet formation in granular suspensions by systematically varying the volume fractions ($\phi $) and particle diameters ($d$). For suspensions with water as the suspending liquid, we find three different regimes. For dilute suspensions ($\phi \phantom{\rule{4pt}{0ex}}\le 45\%$), drop formation follows the predictions for inertial …

[Phys. Rev. E 92, 052203] Published Fri Nov 13, 2015

]]>To elucidate mechanisms of mesoscopic turbulence exhibited by active particles, we experimentally study turbulent states of nonliving self-propelled particles. We realize an experimental system with dense suspensions of asymmetrical colloidal particles (Janus particles) self-propelling on a two-dime…

[Phys. Rev. E 92, 052309] Published Fri Nov 13, 2015

]]>The authors explore the concept of shapeability, the capacity of a material to deform and then retain its shape under sufficiently weak external forces, in crumpled sheets. By modeling the material as a set of deformed spring lattices in different shapes, they explore the conditions for irreversible deformation and study the local configuration of the spring lattice, showing that a significant number of the elastic bonds retain their displaced position after relaxing the system. This opens the door for potential experimental applications on elastic sheets with shape memory.

[Phys. Rev. E 92, 052401] Published Fri Nov 13, 2015

]]>It has been hypothesized that in the era just before the last universal common ancestor emerged, life on earth was fundamentally collective. Ancient life forms shared their genetic material freely through massive horizontal gene transfer (HGT). At a certain point, however, life made a transition to …

[Phys. Rev. E 92, 052909] Published Fri Nov 13, 2015

]]>A mechanical model of swimming and flying in an incompressible viscous fluid in the absence of gravity is studied on the basis of assumed equations of motion. The system is modeled as an assembly of rigid spheres subject to elastic direct interactions and to periodic actuating forces which sum to ze…

[Phys. Rev. E 92, 053011] Published Fri Nov 13, 2015

]]>We present a collision model for particle-particle and particle-wall interactions in interface-resolved simulations of particle-laden flows. Three types of interparticle interactions are taken into account: (1) long- and (2) short-range hydrodynamic interactions, and (3) solid-solid contact. Long-ra…

[Phys. Rev. E 92, 053012] Published Fri Nov 13, 2015

]]>The neutron population in a nuclear reactor is subject to fluctuations in time and in space due to the competition of diffusion by scattering, births by fission events, and deaths by absorptions. As such, fission chains provide a prototype model for the study of spatial clustering phenomena. In orde…

[Phys. Rev. E 92, 052114] Published Thu Nov 12, 2015

]]>We analyze a one-dimensional model of hard particles, within ensembles of trajectories that are conditioned (or biased) to atypical values of the time-averaged dynamical activity. We analyze two phenomena that are associated with these large deviations of the activity: phase separation (at low activ…

[Phys. Rev. E 92, 052115] Published Thu Nov 12, 2015

]]>The revival of oscillation and maintaining rhythmicity in a network of coupled oscillators offer an open challenge to researchers as the cessation of oscillation often leads to a fatal system degradation and an irrecoverable malfunctioning in many physical, biological, and physiological systems. Rec…

[Phys. Rev. E 92, 052908] Published Thu Nov 12, 2015

]]>We study, by renormalization group methods, $\mathrm{O}\left(N\right)$ models with interactions decaying as power law with exponent $d+\sigma $. When only the long-range momentum term ${p}^{\sigma}$ is considered in the propagator, the critical exponents can be computed from those of the corresponding short-range $\mathrm{O}\left(N\right)$ models at an effective…

[Phys. Rev. E 92, 052113] Published Wed Nov 11, 2015

]]>We propose an elastic theory of epithelial monolayers based on a two-dimensional discrete model of dropletlike cells characterized by differential surface tensions of their apical, basal, and lateral sides. We show that the effective tissue bending modulus depends on the apicobasal differential tens…

[Phys. Rev. E 92, 052713] Published Wed Nov 11, 2015

]]>In this paper, we present an approach for predicting nanoscale capillary imbibitions using the Lucas-Washburn (LW) theory. Molecular dynamics (MD) simulations were employed to investigate the effects of surface forces on the viscosity of liquid water. This provides an update to the modified LW equat…

[Phys. Rev. E 92, 053009] Published Wed Nov 11, 2015

]]>A methodology for turbulence constitutive modeling is discussed on the basis of the square-root tensor of the Reynolds stress. The present methodology can satisfy the realizability condition for the Reynolds stress proposed by Schumann [Phys. Fluids **20**, 721 (1977)] in a more general manner than the …

[Phys. Rev. E 92, 053010] Published Wed Nov 11, 2015

]]>Disordered hyperuniform (DH) media have been recognized as a new state of disordered matter that broadens our vision of material engineering. Here, long-range correlated disordered two-dimensional patterns are fabricated by self-assembling of spherical diblock-copolymer (BCP) micelles. Control of th…

[Phys. Rev. E 92, 050601(R)] Published Tue Nov 10, 2015

]]>Using the Cayley-Dickson construction we rephrase and review the non-Hermitian diagrammatic formalism [R. A. Janik, M. A. Nowak, G. Papp, and I. Zahed, Nucl. Phys. B **501**, 603 (1997)], that generalizes the free probability calculus to asymptotically large non-Hermitian random matrices. The main objec…

[Phys. Rev. E 92, 052111] Published Tue Nov 10, 2015

]]>We describe a universality class for the transitions of a generalized Pólya urn by studying the asymptotic behavior of the normalized correlation function $C\left(t\right)$ using finite-size scaling analysis. $X\left(1\right),X\left(2\right),...$ are the successive additions of a red (blue) ball $\left[X\right(t)=1\phantom{\rule{0.16em}{0ex}}(0\left)\right]$ at stage $t$ and $C\left(t\right)\equiv \text{Cov}\left[X\right(1)\dots $

[Phys. Rev. E 92, 052112] Published Tue Nov 10, 2015

]]>The process of destroying a complex network through node removal has been the subject of extensive interest and research. Node loss typically leaves the network disintegrated into many small and isolated clusters. Here we show that these clusters typically remain close to each other and we suggest a…

[Phys. Rev. E 92, 052806] Published Tue Nov 10, 2015

]]>In the present work we study the motion of microorganisms swimming by an axisymmetric distribution of surface tangential velocity in a weakly viscoelastic fluid. The second-order fluid constitutive equation is used to model the suspending fluid, while the well-known “squirmer model” [M. J. Lighthill…

[Phys. Rev. E 92, 053008] Published Tue Nov 10, 2015

]]>It is well known that the Korteweg–de Vries (KdV) equation has an infinite set of conserved quantities. The first three are often considered to represent mass, momentum, and energy. Here we try to answer the question of how this comes about and also how these KdV quantities relate to those of the Eu…

[Phys. Rev. E 92, 053202] Published Tue Nov 10, 2015

]]>We first study fluctuating hydrodynamics (FH) at equilibrium in periodic domains by use of the smoothed dissipative particle dynamics (SDPD) method. We examine the performance of SDPD by comparing it with the theory of FH. We find that the spatial correlation of particle velocity is always the Dirac…

[Phys. Rev. E 92, 053302] Published Tue Nov 10, 2015

]]>The phase behavior of stabilized dispersions of macromolecules is most easily described in terms of the effective interaction between the centers of mass of solute particles. For molecules such as polymer chains, dendrimers, etc., the effective pair potential is *finite* at the origin, allowing “parti…

[Phys. Rev. E 92, 050301(R)] Published Mon Nov 09, 2015

]]>The well-known Kerr effect in isotropic fluids consists in the appearance of uniaxial orientational order and birefringence that grows as the square of the applied electric field. We predict and observe that at a high electric field, the Kerr effect displays features caused by the nonlinear dependen…

[Phys. Rev. E 92, 050501(R)] Published Mon Nov 09, 2015

]]>The assembly of monomeric constituents into molecular superstructures through sequential-arrival processes has been simulated and theoretically characterized. When the energetic interactions allow for complete overlap of the particles, the model is equivalent to that of the sequential absorption of …

[Phys. Rev. E 92, 052108] Published Mon Nov 09, 2015

]]>Recovering a stochastic process from noisy ensembles of single-particle trajectories is resolved here using the coarse-grained Langevin equation as a model. The massive redundancy contained in single-particle tracking data allows recovering local parameters of the underlying physical model. We use s…

[Phys. Rev. E 92, 052109] Published Mon Nov 09, 2015

]]>The proper definition of entropy is fundamental to the relationship between statistical mechanics and thermodynamics. It also plays a major role in the recent debate about the validity of the concept of negative temperature. In this paper, I analyze and calculate the thermodynamic entropy for large …

[Phys. Rev. E 92, 052110] Published Mon Nov 09, 2015

]]>The Boltzmann equation framework for inelastic Maxwell models is considered to determine the transport coefficients associated with the mass, momentum, and heat fluxes of a granular binary mixture in spatially inhomogeneous states close to the simple shear flow. The Boltzmann equation is solved by m…

[Phys. Rev. E 92, 052202] Published Mon Nov 09, 2015

]]>We study the phases and dynamics of a gas of monodisperse particles interacting via soft-core potentials in two spatial dimensions, which is of interest for soft-matter colloidal systems and quantum atomic gases. Using exact theoretical methods, we demonstrate that the equilibrium low-temperature cl…

[Phys. Rev. E 92, 052307] Published Mon Nov 09, 2015

]]>We explore the link between soft vibrational modes and local relaxation events in polymer glasses during physical aging, active deformation at constant strain rate, and subsequent recovery. A softness field is constructed out of the superposition of the amplitudes of the lowest energy normal modes, …

[Phys. Rev. E 92, 052308] Published Mon Nov 09, 2015

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