Using a formalism based on the spectral decomposition of the replicated transfer matrix for disordered Ising models, we obtain several results that apply both to isolated one-dimensional systems and to locally treelike graph and factor graph (p-spin) ensembles. We present exact analytical expression...

[Phys. Rev. E 90, 012140] Published Wed Jul 30, 2014

]]>Relativistic effect is important in many quantum systems but theoretically complicated from both fundamental and practical perspectives. Herein we introduce an efficient computational procedure to predict the structure and energetic properties of relativistic quantum systems by mapping the Pauli pri...

[Phys. Rev. E 90, 012141] Published Wed Jul 30, 2014

]]>Computer simulations of the Ising model exhibit white noise if thermal fluctuations are governed by Boltzmann's factor alone; whereas we find that the same model exhibits 1/f noise if Boltzmann's factor is extended to include local alignment entropy to all orders. We show that this nonlinear correct...

[Phys. Rev. E 90, 012142] Published Wed Jul 30, 2014

]]>Condensation of fluctuations is an interesting phenomenon conceptually distinct from condensation on average. One striking feature is that, contrary to what happens on average, condensation of fluctuations may occur even in the absence of interaction. The explanation emerges from the duality between...

[Phys. Rev. E 90, 012143] Published Wed Jul 30, 2014

]]>Neural field theory insights are used to derive effective brain connectivity matrices from the functional connectivity matrix defined by activity covariances. The symmetric case is exactly solved for a resting state system driven by white noise, in which strengths of connections, often termed effect...

[Phys. Rev. E 90, 012707] Published Wed Jul 30, 2014

]]>The ability to understand the impact of adversarial processes on networks is crucial to various disciplines. The objects of study in this article are fitness-driven networks. Fitness-dependent networks are fully described by a probability distribution of fitness and an attachment kernel. Every node ...

[Phys. Rev. E 90, 012815] Published Wed Jul 30, 2014

]]>We explore the networks that yield the largest mean consensus time of voter models under different update rules. By analytical and numerical means, we show that the so-called lollipop graph, barbell graph, and double-star graph maximize the mean consensus time under the update rules called the link ...

[Phys. Rev. E 90, 012816] Published Wed Jul 30, 2014

]]>We study numerically joint mixing of salt and colloids by chaotic advection and how salt inhomogeneities accelerate or delay colloid mixing by inducing a velocity drift Vdp between colloids and fluid particles as proposed in recent experiments [J. Deseigne et al., Soft Matter 10, 4795 (2014)10.1039/...

[Phys. Rev. E 90, 013027] Published Wed Jul 30, 2014

]]>Immiscible displacement of viscous oil by water in a petroleum reservoir is often hydrodynamically unstable. Due to similarities between the physics of dielectric breakdown and immiscible flow in porous media, we extend the existing dielectric breakdown model to simulate viscous fingering patterns f...

[Phys. Rev. E 90, 013028] Published Wed Jul 30, 2014

]]>The object of experimental study is a fluid flow generated by differential rotation of a free light spherical body in a rotating cylindrical cavity. The body stays near the axis under the action of centrifugal force. The body rotation is generated by a force field oscillating in the cavity reference...

[Phys. Rev. E 90, 013029] Published Wed Jul 30, 2014

]]>The kinetic Monte Carlo method is used to model the dynamic properties of proton diffusion in anhydrous proton conductors. The results have been discussed with reference to a two-step process called the Grotthuss mechanism. There is a widespread belief that this mechanism is responsible for fast pro...

[Phys. Rev. E 90, 012135] Published Tue Jul 29, 2014

]]>The authors examine a number of two- and three-dimensional tiling models that, if cooled slowly, undergo an infinite sequence of phase transitions at which sublattices of increasing size crystallize. This cooling process can lead to an ordered nonperiodic state at zero temperature that is not necessarily the ground state of the system.

[Phys. Rev. E 90, 012136] Published Tue Jul 29, 2014

]]>In this paper we study the four-point correlation function χ4 of collective density fluctuations in a nonequilibrium liquid. The equilibration is controlled by a modified stretched exponential behavior {exp[−(tw/τ)β]} having the relaxation time τ dependent on the aging time tw. Similar aging behavio...

[Phys. Rev. E 90, 012137] Published Tue Jul 29, 2014

]]>The spatial suppression of order parameter fluctuations in a critical media produces critical Casimir forces acting on confining surfaces. This scenario is realized in a critical binary mixture near the demixing transition point that corresponds to the second-order phase transition of the Ising univ...

[Phys. Rev. E 90, 012138] Published Tue Jul 29, 2014

]]>We investigate the nonequilibrium phase transition of the disordered contact process in five space dimensions by means of optimal fluctuation theory and Monte Carlo simulations. We find that the critical behavior is of mean-field type, i.e., identical to that of the clean five-dimensional contact pr...

[Phys. Rev. E 90, 012139] Published Tue Jul 29, 2014

]]>We evidence a Kovacs-like memory effect in a uniformly driven granular gas. A system of inelastic hard particles, in the low density limit, can reach a nonequilibrium steady state when properly forced. By following a certain protocol for the drive time dependence, we prepare the gas in a state where...

[Phys. Rev. E 90, 012204] Published Tue Jul 29, 2014

]]>System-environment interactions are intrinsically nonlinear and dependent on the interplay between many degrees of freedom. The complexity may be even more pronounced when one aims to describe biologically motivated systems. In that case, it is useful to resort to simplified models relying on effect...

[Phys. Rev. E 90, 012813] Published Tue Jul 29, 2014

]]>To understand the effects of nonidentical processing elements (PEs) on parallel discrete-event simulation (PDES) schemes, two stochastic growth models, the restricted solid-on-solid (RSOS) model and the Family model, are investigated by simulations. The RSOS model is the model for the PDES scheme go...

[Phys. Rev. E 90, 012814] Published Tue Jul 29, 2014

]]>Excitation of shape instabilities represents one route to bubble death in single-bubble sonoluminescence. This feature is satisfactorily explained by an expansion to first order in the amplitude of a shape distortion in the form of a spherical harmonic. By taking the expansion to second order, it is...

[Phys. Rev. E 90, 013026] Published Tue Jul 29, 2014

]]>Neural field models are used to study macroscopic spatiotemporal patterns in the cortex. Their derivation from networks of model neurons normally involves a number of assumptions, which may not be correct. Here we present an exact derivation of a neural field model from an infinite network of theta ...

[Phys. Rev. E 90, 010901] Published Mon Jul 28, 2014

]]>In order to elucidate the nature of hysteresis characteristics in a magnetic Ising-type thin film with a certain thickness, such as types of frequency dispersion curves, decay of hysteresis loop area, corresponding coercive field and remanent magnetization values, etc., we investigate the hysteretic...

[Phys. Rev. E 90, 012129] Published Mon Jul 28, 2014

]]>We consider the problem of two-point resistance in an (m−1)×n resistor network embedded on a globe, a geometry topologically equivalent to an m×n cobweb with its boundary collapsed into one single point. We deduce a concise formula for the resistance between any two nodes on the globe using a method...

[Phys. Rev. E 90, 012130] Published Mon Jul 28, 2014

]]>The transport properties of active Brownian particles driven by cross-correlated noises are investigated. Using the Langevin and Fokker-Planck approaches, the theoretical analysis of the model is presented. It is found that correlated noises can produce a net velocity, which stems from the symmetric...

[Phys. Rev. E 90, 012131] Published Mon Jul 28, 2014

]]>The mean-field (MF) approximation offers a simple, fast way to infer direct interactions between elements in a network of correlated variables, a common, computationally challenging problem with practical applications in fields ranging from physics and biology to the social sciences. However, MF met...

[Phys. Rev. E 90, 012132] Published Mon Jul 28, 2014

]]>In an exclusion process with avalanches, when a particle hops to a neighboring empty site which is adjacent to an island the particle on the other end of the island immediately hops, and if it joins another island this triggers another hop. There are no restrictions on the length of the islands and ...

[Phys. Rev. E 90, 012133] Published Mon Jul 28, 2014

]]>We study the stochastic behavior of heterogeneous diffusion processes with the power-law dependence D(x)∼|x|α of the generalized diffusion coefficient encompassing sub- and superdiffusive anomalous diffusion. Based on statistical measures such as the amplitude scatter of the time-averaged mean-squar...

[Phys. Rev. E 90, 012134] Published Mon Jul 28, 2014

]]>For the last 50 years, the flow of a granular material through an aperture has been intensely studied in gravity-driven vertical systems (e.g., silos and hoppers). Nevertheless, in many industrial applications, grains are horizontally transported at constant velocity, lying on conveyor belts or floa...

[Phys. Rev. E 90, 012203] Published Mon Jul 28, 2014

]]>In this paper, an imaging mode (called the adaptive multiloop mode) of atomic force microscope (AFM) is proposed to substantially increase the speed of tapping mode (TM) imaging while preserving the advantages of TM imaging over contact mode (CM) imaging. Due to its superior image quality and less s...

[Phys. Rev. E 90, 012405] Published Mon Jul 28, 2014

]]>The structure of a network dramatically affects the spreading phenomena unfolding upon it. The contact distribution of the nodes has long been recognized as the key ingredient in influencing the outbreak events. However, limited knowledge is currently available on the role of the weight of the edges...

[Phys. Rev. E 90, 012812] Published Mon Jul 28, 2014

]]>In this study, symbolic dynamics is used to research the error of chaos synchronization via noisy channels. The theory of symbolic dynamics reduces chaos to a shift map that acts on a discrete set of symbols, each of which contains information about the system state. Using this transformation, a cod...

[Phys. Rev. E 90, 012908] Published Mon Jul 28, 2014

]]>How to freely enhance or suppress synchronization of networked dynamical systems is of great importance in many disciplines. A unified precise control method for a synchronization-desynchronization switch, called the pull-push control method, is suggested. Namely, synchronization can be achieved whe...

[Phys. Rev. E 90, 012909] Published Mon Jul 28, 2014

]]>We study numerically liquid-vapor phase separation in two-dimensional, nonisothermal, van der Waals (vdW) liquid drops using the method of smoothed particle hydrodynamics (SPH). In contrast to previous SPH simulations of drop formation, our approach is fully adaptive and follows the diffuse-interfac...

[Phys. Rev. E 90, 013021] Published Mon Jul 28, 2014

]]>It was shown by Oberlack and Rosteck [Discr. Cont. Dyn. Sys. S, 3, 451 201010.3934/dcdss.2010.3.451] that the infinite set of multipoint correlation (MPC) equations of turbulence admits a considerable extended set of Lie point symmetries compared to the Galilean group, which is implied by the origin...

[Phys. Rev. E 90, 013022] Published Mon Jul 28, 2014

]]>Accurate models for the water vapor flux at a water-air interface are required in various scientific, reliability and civil engineering aspects. Here, a study of humidity distribution in a container with air and freely exposed water is presented. A model predicting a spatial distribution and time ev...

[Phys. Rev. E 90, 013023] Published Mon Jul 28, 2014

]]>We show that the Casimir effect can emerge in microswimmer suspensions. In principle, two effects conspire against the development of Casimir effects in swimmer suspensions. First, at low Reynolds number, the force on any closed volume vanishes, but here the relevant effect is the drag by the flow p...

[Phys. Rev. E 90, 013024] Published Mon Jul 28, 2014

]]>Using a combined experimental-numerical approach, we study the first-passage time distributions (FPTD) of small particles in two-dimensional porous materials. The distributions in low-porosity structures show persistent long-time tails, which are independent of the Péclet number and therefore cannot...

[Phys. Rev. E 90, 013025] Published Mon Jul 28, 2014

]]>Stochastic transport of a two-dimensional (2D) dusty plasma liquid with a perpendicular magnetic field is studied. Superdiffusion is found to occur especially at higher magnetic fields with β of order unity. Here, β=ωc/ωpd is the ratio of the cyclotron and plasma frequencies for dust particles. The ...

[Phys. Rev. E 90, 013105] Published Mon Jul 28, 2014

]]>Using the self-excited dust acoustic wave as a platform, we demonstrate experimental observation of self-excited fluctuating acoustic vortex pairs with ±1 topological charges through spontaneous waveform undulation in defect-mediated turbulence for three-dimensional traveling nonlinear longitudinal ...

[Phys. Rev. E 90, 013106] Published Mon Jul 28, 2014

]]>In this paper, two modified lattice Boltzmann Bhatnagar-Gross-Krook (LBGK) models for incompressible Navier-Stokes equations and convection-diffusion equations are proposed via the addition of correction terms in the evolution equations. Utilizing this modification, the value of the dimensionless re...

[Phys. Rev. E 90, 013309] Published Mon Jul 28, 2014

]]>Recently, a maximum pseudolikelihood (MPL) inference method has been successfully applied to statistical physics models with intractable likelihoods. We use information theory to derive a relation between the pseudolikelihood and likelihood functions. Furthermore, we show the consistency of the pseu...

[Phys. Rev. E 90, 010101] Published Fri Jul 25, 2014

]]>We present a method which uses Feynman-like diagrams to calculate the statistical quantities of embedded many-body random matrix problems. The method provides a promising alternative to existing techniques and offers many important simplifications. We use it here to find the fourth, sixth, and eight...

[Phys. Rev. E 90, 010102] Published Fri Jul 25, 2014

]]>Hydrodynamic instabilities are a major obstacle in the quest to achieve ignition as they cause preexisting capsule defects to grow and ultimately quench the fusion burn in experiments at the National Ignition Facility. Unstable growth at the ablation front has been dramatically reduced in implosions...

[Phys. Rev. E 90, 011102] Published Fri Jul 25, 2014

]]>Passive states of quantum systems are states from which no system energy can be extracted by any cyclic (unitary) process. Gibbs states of all temperatures are passive. Strong local (SL) passive states are defined to allow any general quantum operation, but the operation is required to be local, bei...

[Phys. Rev. E 90, 012127] Published Fri Jul 25, 2014

]]>The interfacial tension between coexisting phases is a fundamental quantity, but its computation by computer simulations remains a challenging problem. The authors analyze the origins of finite-size effects in such computations, tracing one of the corrections to a “domain breathing” mechanism where order parameter fluctuations in the bulk and the motion of the interface are correlated.

[Phys. Rev. E 90, 012128] Published Fri Jul 25, 2014

]]>We propose an integral equation theory for a mixture of macroions, counterions, and co-ions in a waterlike fluid in which all the components are accounted for explicitly. The macroions can carry positive and negative surface charges simultaneously, mimicking in this way the situation occurring in pr...

[Phys. Rev. E 90, 012308] Published Fri Jul 25, 2014

]]>Self-healing of polymer films often takes place as the molecules diffuse across a damaged region, above their melting temperature. Using molecular dynamics simulations we probe the healing of polymer films and compare the results with those obtained for thermal welding of homopolymer slabs. These tw...

[Phys. Rev. E 90, 012602] Published Fri Jul 25, 2014

]]>A persistent alternation in the cardiac action potential duration has been linked to the onset of ventricular arrhythmia, which may lead to sudden cardiac death. A coupling between these cardiac alternans and the intracellular calcium dynamics has also been identified in previous studies. In this pa...

[Phys. Rev. E 90, 012706] Published Fri Jul 25, 2014

]]>We introduce a quantum Monte Carlo algorithm to measure the Rényi entanglement entropies in systems of interacting bosons in the continuum. This approach is based on a path-integral ground state method that can be applied to interacting itinerant bosons in any spatial dimension with direct relevance...

[Phys. Rev. E 90, 013308] Published Fri Jul 25, 2014

]]>We construct a structural order parameter from the energy equipartition of normal modes of vibration to quantify the structural heterogeneity in disordered solids. The order parameter exhibits strong spatial correlations with low-temperature dynamics and local structural entropy. To characterize the...

[Phys. Rev. E 90, 010401] Published Thu Jul 24, 2014

]]>We examine the average-case performance of a code-division multiple-access (CDMA) multiuser demodulator in which quantum fluctuations are utilized to demodulate the original message within the context of Bayesian inference. The quantum fluctuations are built into the system as a transverse field in ...

[Phys. Rev. E 90, 012126] Published Thu Jul 24, 2014

]]>We report numerical results which show the achievement of net transport of self-propelled particles (SPPs) in the presence of a two-dimensional regular array of convex, either symmetric or asymmetric, rigid obstacles. The repulsive interparticle (soft disks) and particle-obstacle interactions presen...

[Phys. Rev. E 90, 012307] Published Thu Jul 24, 2014

]]>We demonstrate distinct entanglement of single-walled carbon nanotube (SWCNT) and multiwalled carbon nanotube (MWCNT) clusters in nematic liquid crystal medium using scanning electron microscopy technique and the entanglement influence on electric field-induced stretching phenomena of the said clust...

[Phys. Rev. E 90, 012508] Published Thu Jul 24, 2014

]]>In this paper, we study the dynamics of freely falling plates based on the Kirchhoff equation and the quasisteady aerodynamic model. Motion transitions among fluttering, tumbling along a cusp-like trajectory, irregular, and tumbling along a straight trajectory are obtained by solving the dynamical e...

[Phys. Rev. E 90, 013020] Published Thu Jul 24, 2014

]]>Recent work has developed a nonlinear hydrodynamic fluctuation theory for a chain of coupled anharmonic oscillators governing the conserved fields, namely, stretch, momentum, and energy. The linear theory yields two propagating sound modes and one diffusing heat mode, all three with diffusive broade...

[Phys. Rev. E 90, 012124] Published Wed Jul 23, 2014

]]>We have applied both the master equation method and harmonic transition state theory to interpret the velocity-dependent friction behavior observed in atomic friction experiments. To understand the discrepancy between attempt frequencies measured in atomic force microscopy experiments and those esti...

[Phys. Rev. E 90, 012125] Published Wed Jul 23, 2014

]]>We study boundary lubrication characteristics of a liquid crystal (LC) monolayer sheared between two crystalline surfaces by nonequilibrium molecular dynamics simulations, using a simplified rigid bead-necklace model of the LC molecules. We consider LC monolayers confined by surfaces with three diff...

[Phys. Rev. E 90, 012404] Published Wed Jul 23, 2014

]]>Recent years have witnessed the development of a large body of algorithms for community detection in complex networks. Most of them are based upon the optimization of objective functions, among which modularity is the most common, though a number of alternatives have been suggested in the scientific...

[Phys. Rev. E 90, 012811] Published Wed Jul 23, 2014

]]>The effect of various velocity boundary condition is studied in two-dimensional Rayleigh-Bénard convection. Combinations of no-slip, stress-free, and periodic boundary conditions are used on both the sidewalls and the horizontal plates. For the studied Rayleigh numbers Ra between 108 and 1011 the he...

[Phys. Rev. E 90, 013017] Published Wed Jul 23, 2014

]]>We present a detailed direct numerical simulation of statistically steady, homogeneous, isotropic, two-dimensional magnetohydrodynamic turbulence. Our study concentrates on the inverse cascade of the magnetic vector potential. We examine the dependence of the statistical properties of such turbulenc...

[Phys. Rev. E 90, 013018] Published Wed Jul 23, 2014

]]>We numerically examine run-and-tumble active matter particles in Casimir geometries composed of two finite parallel walls. We find that there is an attractive force between the two walls of a magnitude that increases with increasing run length. The attraction exhibits an unusual exponential dependen...

[Phys. Rev. E 90, 013019] Published Wed Jul 23, 2014

]]>We study the k-NN hard-core lattice gas model in which the first k next-nearest-neighbor sites of a particle are excluded from occupation by other particles on a two-dimensional square lattice. This model is the lattice version of the hard-disk system with increasing k corresponding to decreasing la...

[Phys. Rev. E 90, 012120] Published Tue Jul 22, 2014

]]>Considering any Hamiltonian, any initial state, and measurements with a small number of possible outcomes compared to the dimension, we show that most measurements are already equilibrated. To investigate nontrivial equilibration, we therefore consider a restricted set of measurements. When the init...

[Phys. Rev. E 90, 012121] Published Tue Jul 22, 2014

]]>Order-disorder phase transition of the ferromagnetic Ising model is investigated on a series of two-dimensional lattices that have negative Gaussian curvatures. Exceptional lattice sites of coordination number seven are distributed on the triangular lattice, where the typical distance between the ne...

[Phys. Rev. E 90, 012122] Published Tue Jul 22, 2014

]]>The temporal evolution of equilibrium fluctuations for surface steps of monatomic height is analyzed studying one-dimensional solid-on-solid models. Using Monte Carlo simulations, fluctuations due to periphery diffusion (PD) as well as due to evaporation and condensation are considered, both for iso...

[Phys. Rev. E 90, 012123] Published Tue Jul 22, 2014

]]>We study the dynamics of inertial particles in three-dimensional incompressible maps, as representations of volume-preserving flows. The impurity dynamics has been modeled, in the Lagrangian framework, by a six-dimensional dissipative bailout embedding map. The fluid-parcel dynamics of the base map ...

[Phys. Rev. E 90, 012906] Published Tue Jul 22, 2014

]]>An alternative way for the derivation of the new Korteweg–de Vries (KdV)-type equation is presented. The equation contains terms depending on the bottom topography (there are six new terms in all, three of which are caused by the unevenness of the bottom). It is obtained in the second-order perturba...

[Phys. Rev. E 90, 012907] Published Tue Jul 22, 2014

]]>Recently, anomalous scaling properties of front broadening during spontaneous imbibition of water in Vycor glass, a nanoporous medium, were reported: the mean height and the width of the propagating front increase with time t both proportional to t1/2. Here, we propose a simple lattice imbibition mo...

[Phys. Rev. E 90, 013016] Published Tue Jul 22, 2014

]]>The mechanical response of a circularly driven disk in a dissipative medium is considered. We focus on the role played by viscous friction in the spinning motion of the disk, especially on the effect called reverse rotation, where the intrinsic and orbital rotations are antiparallel. Contrary to wha...

[Phys. Rev. E 90, 013201] Published Tue Jul 22, 2014

]]>Kinetic and fluid equations are derived for the dynamics of classical inhomogeneous trapped plasmas in the strong coupling regime. The starting point is an extended Singwi-Tosi-Land-Sjölander (STLS) ansatz for the dynamic correlation function, which is allowed to depend on time and both particle coo...

[Phys. Rev. E 90, 011101] Published Mon Jul 21, 2014

]]>Mathematical tools from physics are enabling new ways to study a classic optimization problem.

[Phys. Rev. E 90, 012118] Published Mon Jul 21, 2014

]]>In this article we use optimal control to maximize the efficiency of a quantum heat engine executing the Otto cycle in the presence of external noise. We optimize the engine performance for both amplitude and phase noise. In the case of phase damping we additionally show that the ideal performance o...

[Phys. Rev. E 90, 012119] Published Mon Jul 21, 2014

]]>We present a detailed analysis of the morphology of granular systems composed of frictionless pentagonal particles by varying systematically both the size span and particle shape irregularity, which represent two polydispersity parameters of the system. The microstructure is characterized in terms o...

[Phys. Rev. E 90, 012202] Published Mon Jul 21, 2014

]]>Leukocytes and other circulating cells deform and move relatively to the channel flow in the lateral and translational directions. Their migratory property is important in immune response, hemostasis, cancer progression, delivery of nutrients, and microfluidic technologies such as cell separation an...

[Phys. Rev. E 90, 012705] Published Mon Jul 21, 2014

]]>We consider a model for the diffusion of epidemics in a population that is partitioned into local communities. In particular, assuming a mean-field approximation, we analyze a continuous-time susceptible-infected-susceptible (SIS) model that has appeared recently in the literature. The probability b...

[Phys. Rev. E 90, 012810] Published Mon Jul 21, 2014

]]>We investigate numerically the dynamics of a propagating front in the presence of a spatiotemporally chaotic flow field. The flow field is the three-dimensional time-dependent state of spiral defect chaos generated by Rayleigh-Bénard convection in a spatially extended domain. Using large-scale paral...

[Phys. Rev. E 90, 012905] Published Mon Jul 21, 2014

]]>In the Leidenfrost effect a small drop of fluid is levitated, above a sufficiently hot surface, on a persistent vapor layer generated by evaporation from the drop. The vapor layer thermally insulates the drop from the surface leading to extraordinarily long drop lifetimes. The top-view shape of the ...

[Phys. Rev. E 90, 013014] Published Mon Jul 21, 2014

]]>We analyze both theoretically and experimentally the dynamical behavior of an isothermal axisymmetric liquid bridge close to the minimum-volume stability limit. First, the nature of this stability limit is investigated experimentally by determining the liquid bridge response to a mass force pulse fo...

[Phys. Rev. E 90, 013015] Published Mon Jul 21, 2014

]]>We propose a modified Poisson-Nernst-Planck (PNP) model to investigate charge transport in electrolytes of inhomogeneous dielectric environment. The model includes the ionic polarization due to the dielectric inhomogeneity and the ion-ion correlation. This is achieved by the self energy of test ions...

[Phys. Rev. E 90, 013307] Published Mon Jul 21, 2014

]]>We theoretically study energy pumping processes in an electrical circuit with avalanche diodes, where non-Gaussian athermal noise plays a crucial role. We show that a positive amount of energy (work) can be extracted by an external manipulation of the circuit in a cyclic way, even when the system is...

[Phys. Rev. E 90, 012115] Published Fri Jul 18, 2014

]]>We derive the Fokker-Planck equation for multivariable Langevin equations with cross-correlated Gaussian white noises for an arbitrary interpretation of the stochastic differential equation. We formulate the conditions when the solution of the Fokker-Planck equation does not depend on which stochast...

[Phys. Rev. E 90, 012116] Published Fri Jul 18, 2014

]]>We investigate the onset of the discontinuous percolation transition in small-world hyperbolic networks by studying the systems-size scaling of the typical largest cluster approaching the transition, p↗pc. To this end, we determine the average size of the largest cluster 〈smax〉∼NΨ(p) in the thermody...

[Phys. Rev. E 90, 012117] Published Fri Jul 18, 2014

]]>Pair potentials that are bounded at the origin provide an accurate description of the effective interaction for many systems of dissolved soft macromolecules (e.g., flexible dendrimers). Using numerical free-energy calculations, we reconstruct the equilibrium phase diagram of a system of particles i...

[Phys. Rev. E 90, 012305] Published Fri Jul 18, 2014

]]>Agglomeration processes occur in many different realms of science, such as colloid and aerosol formation or formation of bacterial colonies. We study the influence of primary-particle density in agglomerate structures using diffusion-controlled Monte Carlo simulations with realistic space scales thr...

[Phys. Rev. E 90, 012306] Published Fri Jul 18, 2014

]]>The existence, stability properties, and bifurcation diagram of the nematic umbilical defects is studied. Close to the Fréedericksz transition of nematic liquid crystals with negative anisotropic dielectric constant and homeotropic anchoring, an anisotropic Ginzburg-Landau equation for the amplitude...

[Phys. Rev. E 90, 012507] Published Fri Jul 18, 2014

]]>The interfacial pattern formation problem in an injection-driven radial Hele-Shaw flow is studied for the situation in which a Newtonian fluid of negligible viscosity displaces a viscous non-Newtonian power-law fluid. By utilizing a Darcy-law-like formulation, we tackle the fluid-fluid interface evo...

[Phys. Rev. E 90, 013013] Published Fri Jul 18, 2014

]]>We develop a semirelativistic quantum fluid theory based on the expansion of the Dirac Hamiltonian to second order in 1/c. By making use of the Madelung representation of the wave function, we derive a set of hydrodynamic equations that comprises a continuity equation, an Euler equation for the mean...

[Phys. Rev. E 90, 013103] Published Fri Jul 18, 2014

]]>We investigate subpicosecond dynamics of warm dense hydrogen at the XUV free-electron laser facility (FLASH) at DESY (Hamburg). Ultrafast impulsive electron heating is initiated by a ≤300-fs short x-ray burst of 92-eV photon energy. A second pulse probes the sample via x-ray scattering at jitter-fre...

[Phys. Rev. E 90, 013104] Published Fri Jul 18, 2014

]]>Generalized Bloch wave functions of bulk structures, which are composed of not only propagating waves but also decaying and growing evanescent waves, are known to be essential for defining the open boundary conditions in the calculations of the electronic surface states and scattering wave functions...

[Phys. Rev. E 90, 013306] Published Fri Jul 18, 2014

]]>[Phys. Rev. E 90, 019904] Published Fri Jul 18, 2014

]]>[Phys. Rev. E 90, 019905] Published Fri Jul 18, 2014

]]>Nonreciprocal shape deformations can drive inertialess cellular swimming, as first explored by Taylor and Lighthill in the 1950s, for the small-amplitude squirming of a planar and a spherical surface, respectively. Lighthill's squirmer, in particular, has been extensively studied for large wave numb...

[Phys. Rev. E 90, 012704] Published Thu Jul 17, 2014

]]>We present analytic and numeric results for percolation in a network formed of interdependent spatially embedded networks. We show results for a treelike and a random regular network of networks each with (i) unconstrained dependency links and (ii) dependency links restricted to a maximum Euclidean ...

[Phys. Rev. E 90, 012809] Published Thu Jul 17, 2014

]]>Spatiotemporal patterns, indicating the spatiotemporal variability of individual abundance, are a pronounced scenario in ecological interactions. Most of the existing models for spatiotemporal patterns treat species as homogeneous groups of individuals with average characteristics by ignoring intras...

[Phys. Rev. E 90, 012904] Published Thu Jul 17, 2014

]]>One of the most efficient actuation methods of robotic microswimmers for biomedical applications is by applying time-varying external magnetic fields. In order to improve the design of the swimmer and optimize its performance, one needs to develop simple theoretical models that enable explicit analy...

[Phys. Rev. E 90, 013012] Published Thu Jul 17, 2014

]]>[Phys. Rev. E 90, 019903] Published Thu Jul 17, 2014

]]>We analyze an open system comprised of two parallel totally asymmetric simple exclusion processes with particle attachment and detachment in the bulk under partially asymmetric coupling conditions. The phase diagrams are obtained using boundary layer analysis of continuum mean-field equations and ch...

[Phys. Rev. E 90, 012114] Published Wed Jul 16, 2014

]]>While a leading-edge vortex on an infinite translating wing is shed after a short distance of travel, its counterpart on a finite span revolving insect wing or maple seed membrane exhibits robust attachment. The latter explains the aerodynamic lift generated by such biological species. Here we analy...

[Phys. Rev. E 90, 013011] Published Wed Jul 16, 2014

]]>We show how the formalism used for thermoelectric transport may be adapted to Smoluchowski's seminal thought experiment, also known as Feynman's ratchet and pawl system. Our analysis rests on the notion of useful flux, which for a thermoelectric system is the electrical current and for Feynman's rat...

[Phys. Rev. E 90, 012113] Published Tue Jul 15, 2014

]]>The hydrodynamics of an archetypal low-Reynolds number swimmer, called “squirmer,” near a wall has been numerically studied. For a single squirmer, depending on the swimming mechanism, three different modes are distinguished: (a) the squirmer escaping from the wall, (b) the squirmer swimming along t...

[Phys. Rev. E 90, 013010] Published Tue Jul 15, 2014

]]>The absolute values of the effective attenuation length of an electron in liquid water are determined using soft x-ray O1s photoemission spectroscopy of a liquid beam of water without employing any theoretical estimation or computationally obtained value. The effective attenuation length is greater ...

[Phys. Rev. E 90, 010302] Published Mon Jul 14, 2014

]]>