We study analytically and by numerical simulations the statistics of the aftershocks generated after large avalanches in models of interface depinning that include viscoelastic relaxation effects. We find in all the analyzed cases that the decay law of aftershocks with time can be understood by cons...

[Phys. Rev. E 90, 042129] Published Tue Oct 21, 2014

]]>We introduce an approximation for the pair distribution function of the inhomogeneous hard sphere fluid. Our approximation makes use of our recently published averaged pair distribution function at contact, which has been shown to accurately reproduce the averaged pair distribution function at conta...

[Phys. Rev. E 90, 042130] Published Tue Oct 21, 2014

]]>Fundamental measure theory (FMT) for hard particles has great potential for predicting the phase behavior of colloidal and nanometric shapes. The modern versions of FMT are usually derived from the zero-dimensional limit, a system of at most one particle confined in a collection of cavities in the l...

[Phys. Rev. E 90, 042131] Published Tue Oct 21, 2014

]]>We investigate the nonequilibrium phase transition in the disordered contact process in the presence of long-range spatial disorder correlations. These correlations greatly increase the probability for finding rare regions that are locally in the active phase while the bulk system is still in the in...

[Phys. Rev. E 90, 042132] Published Tue Oct 21, 2014

]]>We investigate the formation of fingered flow in dry granular media under simulated rainfall using a quasi-two-dimensional experimental setup composed of a random close packing of monodisperse glass beads. Using controlled experiments, we analyze the finger instabilities that develop from the wettin...

[Phys. Rev. E 90, 042205] Published Tue Oct 21, 2014

]]>Ferrogels and magnetic elastomers feature mechanical properties that can be reversibly tuned from outside through magnetic fields. Here we concentrate on the question of how their dynamic response can be adjusted. The influence of three factors on the dynamic behavior is demonstrated using appropria...

[Phys. Rev. E 90, 042311] Published Tue Oct 21, 2014

]]>Literature data for picosecond mean square displacements show that the anharmonicity explains only about half of the fragility (with different fractions for different glass formers). The other half must be ascribed to the Adam-Gibbs mechanism of a growing cooperatively rearranging region. One can me...

[Phys. Rev. E 90, 042312] Published Tue Oct 21, 2014

]]>Radical-ion-pair reactions, central in photosynthesis and the avian magnetic compass mechanism, have been recently shown to be a paradigm system for applying quantum information science in a biochemical setting. The fundamental quantum master equation describing radical-ion-pair reactions is still u...

[Phys. Rev. E 90, 042719] Published Tue Oct 21, 2014

]]>Optimal velocity (OV) car-following models give with few parameters stable stop-and -go waves propagating like in empirical data. Unfortunately, classical OV models locally oscillate with vehicles colliding and moving backward. In order to solve this problem, the models have to be completed with add...

[Phys. Rev. E 90, 042812] Published Tue Oct 21, 2014

]]>We study disease spreading in a system of agents moving in a space where the force of infection is not homogeneous. Agents are random walkers that additionally execute long-distance jumps, and the plane in which they move is divided into two regions where the force of infection takes different value...

[Phys. Rev. E 90, 042813] Published Tue Oct 21, 2014

]]>The Shannon entropy of a time series is a standard measure to assess the complexity of a dynamical process and can be used to quantify transitions between different dynamical regimes. An alternative way of quantifying complexity is based on state recurrences, such as those available in recurrence qu...

[Phys. Rev. E 90, 042919] Published Tue Oct 21, 2014

]]>We study a spatial evolutionary rock-paper-scissors game with synchronized strategy updating. Players gain their payoff from games with their four neighbors on a square lattice and can update their strategies simultaneously according to the logit rule, which is the noisy version of the best-response...

[Phys. Rev. E 90, 042920] Published Tue Oct 21, 2014

]]>We examine the distribution of the local dissipation scale η, Q(η), and its temporal evolution in two-dimensional (2D) Rayleigh-Taylor (RT) turbulence using direct numerical simulations at small Atwood number and unit Prandtl number. Within the self-similarity regime of the mixing zone evolution, di...

[Phys. Rev. E 90, 043012] Published Tue Oct 21, 2014

]]>The dispersion of a cylindrical particle ring by a blast or shock wave induces the formation of coherent structures which take the form of particle jets. A blast wave, issuing from the discharge of a planar shock wave at the exit of a conventional shock tube, is generated in the center of a granular...

[Phys. Rev. E 90, 043013] Published Tue Oct 21, 2014

]]>This paper explains the gain window phenomenon seen in early experimental and computational studies on active, closed-loop control of vortex shedding, whereby shedding is completely suppressed only if the feedback gain lies within some narrow window of stabilizing gains. Using two-dimensional direct...

[Phys. Rev. E 90, 043014] Published Tue Oct 21, 2014

]]>In this paper, we present a numerical study on the deformation and breakup behavior of liquid droplet past a solid circular cylinder by using an improved interparticle-potential lattice Boltzmann method. The effects of the eccentric ratio β, viscosity ratio λ between the droplet and the surrounding ...

[Phys. Rev. E 90, 043015] Published Tue Oct 21, 2014

]]>We present a numerical study of thermoviscous effects on the acoustic streaming flow generated by an ultrasound standing-wave resonance in a long straight microfluidic channel containing a Newtonian fluid. These effects enter primarily through the temperature and density dependence of the fluid visc...

[Phys. Rev. E 90, 043016] Published Tue Oct 21, 2014

]]>We show that the state of amide-I excitations in proteins is modeled by the discrete nonlinear Schrödinger equation with saturable nonlinearities. This is done by extending the Davydov model to take into account the competition between local compression and local dilatation of the lattice, thus lead...

[Phys. Rev. E 90, 043203] Published Tue Oct 21, 2014

]]>Using numerical simulations, the onset of Poiseuille flow in a confined soft glass is investigated. Starting from the quiescent state, steady flow sets in at a time scale which increases with a decrease in applied forcing. At this onset time scale, a rapid transition occurs via the simultaneous flui...

[Phys. Rev. E 90, 040301] Published Mon Oct 20, 2014

]]>The long-time limit behavior of velocity correlation functions (VCFs) for an underdamped Brownian particle in an oscillatory viscoelastic shear flow is investigated using the generalized Langevin equation with a power-law memory kernel. The influence of a fluctuating environment is modeled by an add...

[Phys. Rev. E 90, 042127] Published Mon Oct 20, 2014

]]>We present an analytic expression for the heat current through a general harmonic network coupled with Ohmic reservoirs. We use a method that enables us to express the stationary state of the network in terms of the eigenvectors and eigenvalues of a generalized cubic eigenvalue problem. In this way,...

[Phys. Rev. E 90, 042128] Published Mon Oct 20, 2014

]]>We experimentally measure the effects of fluid inertia on the diffusion of a Brownian particle at very long time scales. In previous experiments, the use of standard optical tweezers introduced a cutoff in the free diffusion of the particle, which limited the measurement of these effects to times co...

[Phys. Rev. E 90, 042309] Published Mon Oct 20, 2014

]]>Koperwas et al. showed in a recent paper [Phys. Rev. Lett. 111, 125701 (2013)PRLTAO10.1103/PhysRevLett.111.125701] that the dynamic susceptibility χ4 as estimated by dielectric measurements for certain glass-forming liquids decreases substantially with increasing pressure along a curve of constant r...

[Phys. Rev. E 90, 042310] Published Mon Oct 20, 2014

]]>First return maps of interspike intervals for biological neurons that generate repetitive bursts of impulses can display stereotyped structures (neuronal signatures). Such structures have been linked to the possibility of multicoding and multifunctionality in neural networks that produce and control...

[Phys. Rev. E 90, 042718] Published Mon Oct 20, 2014

]]>In spatial evolutionary games the payoff matrices are used to describe pair interactions among neighboring players located on a lattice. Now we introduce a way how the payoff matrices can be built up as a sum of payoff components reflecting basic symmetries. For the two-strategy games this decomposi...

[Phys. Rev. E 90, 042811] Published Mon Oct 20, 2014

]]>A method of averaging is applied to study the dynamics of a kink in the damped double sine-Gordon equation driven by both external (nonparametric) and parametric periodic forces at high frequencies. This theoretical approach leads to the study of a double sine-Gordon equation with an effective poten...

[Phys. Rev. E 90, 042916] Published Mon Oct 20, 2014

]]>We consider a general class of maps of the interval having Lyapunov subexponential instability |δxt|∼|δx0|exp[Λt(x0)ζ(t)], where ζ(t) grows sublinearly as t→∞. We outline here a scheme [J. Stat. Phys. 154, 988 (2014)JSTPBS10.1007/s10955-013-0895-5] whereby the choice of a characteristic function aut...

[Phys. Rev. E 90, 042917] Published Mon Oct 20, 2014

]]>Self-organized quasiperiodicity is one of the most puzzling dynamical phases observed in systems of nonlinear coupled oscillators. The single dynamical units are not locked to the periodic mean field they produce, but they still feature a coherent behavior, through an unexplained complex form of cor...

[Phys. Rev. E 90, 042918] Published Mon Oct 20, 2014

]]>The widely used Nose-Hoover chain (NHC) thermostat in molecular dynamics simulations is generally believed to impart the canonical distribution as well as quasi- (i.e., space-filling) ergodicity on the thermostatted physical system (PS). Working with the standard single harmonic oscillator, we prove...

[Phys. Rev. E 90, 043304] Published Mon Oct 20, 2014

]]>The driving mechanism and the swirl direction of the bathtub vortex are investigated by the linear stability analysis of the no-vortex flow as well as numerical simulations. We find that only systems having plane symmetries with respect to vertical planes deserve research for the swirl direction. Th...

[Phys. Rev. E 90, 041002] Published Fri Oct 17, 2014

]]>Two-dimensional hybrid simulations of super-Alfvénic expanding debris plasma interacting with an inhomogeneous ambient plasma are presented. The simulations demonstrate improved collisionless coupling of energy to the ambient ions when encountering a density gradient. Simulations of an expanding cyl...

[Phys. Rev. E 90, 041101] Published Fri Oct 17, 2014

]]>We carefully reexamine the conditions of validity for the consistent derivation of the Lifshitz-Matsubara sum formula for the Casimir pressure between metallic plane mirrors. We recover the usual expression for the lossy Drude model but not for the lossless plasma model. We give an interpretation of...

[Phys. Rev. E 90, 042125] Published Fri Oct 17, 2014

]]>We study the optimal exergy efficiency and power for thermodynamic systems with an Onsager-type “current-force” relationship describing the linear response to external influences. We derive, in analytic forms, the maximum efficiency and optimal efficiency for maximum power for a thermodynamic machin...

[Phys. Rev. E 90, 042126] Published Fri Oct 17, 2014

]]>Particle-stabilized emulsions are commonly used in various industrial applications. These emulsions can present in different forms, such as Pickering emulsions or bijels, which can be distinguished by their different topologies and rheology. We numerically investigate the effect of the volume fracti...

[Phys. Rev. E 90, 042307] Published Fri Oct 17, 2014

]]>We investigate the segregation pattern formation of strongly and weakly fluctuating Brownian particle mixtures confined in a three-dimensional spherical container. We consider systems where the particle motion is restricted by the harmonic external trapping potential and the container edge wall. In ...

[Phys. Rev. E 90, 042308] Published Fri Oct 17, 2014

]]>Using dynamical density functional theory we calculate the speed of solidification fronts advancing into a quenched two-dimensional model fluid of soft-core particles. We find that solidification fronts can advance via two different mechanisms, depending on the depth of the quench. For shallow quenc...

[Phys. Rev. E 90, 042404] Published Fri Oct 17, 2014

]]>The tunable optical diffractive properties of zenithal bistable nematic liquid-crystal gratings are theoretically investigated. The liquid-crystal orientation is rigorously solved via a tensorial formulation of the Landau–de Gennes theory and the optical transmission properties of the gratings are i...

[Phys. Rev. E 90, 042503] Published Fri Oct 17, 2014

]]>Polystyrene-grafted iron oxide nanoparticles have been shown to phase separate into ordered morphologies of strings, well-dispersed particles, and spherical aggregates at low graft densities in polymer matrices. In this work, small-angle neutron scattering experiments are performed to reveal the rol...

[Phys. Rev. E 90, 042601] Published Fri Oct 17, 2014

]]>Geophysical data contain stochastic noise that may mask their useful content. For example, ground roll (GR) is a coherent noise that is present in seismic data. Thus, such data are usually a mixture of useful information and useless coherent noise. The latter masks the relevant geologic information ...

[Phys. Rev. E 90, 042810] Published Fri Oct 17, 2014

]]>We explore the quantum dynamics of particles in a spatiotemporally driven lattice. A powerful numerical scheme is developed which provides us with the Floquet modes and thus enables a stroboscopic propagation of arbitrary initial states. A detailed symmetry analysis represents the cornerstone for an...

[Phys. Rev. E 90, 042913] Published Fri Oct 17, 2014

]]>We suggest an adaptive control scheme for the control of in-phase and cluster synchronization in delay-coupled networks. Based on the speed-gradient method, our scheme adapts the topology of a network such that the target state is realized. It is robust towards different initial conditions as well a...

[Phys. Rev. E 90, 042914] Published Fri Oct 17, 2014

]]>We present analytical and numerical results that demonstrate the presence of the Braess paradox in chaotic quantum dots. The paradox that we identify, originally perceived in classical networks, shows that the addition of more capacity to the network can suppress the current flow in the universal re...

[Phys. Rev. E 90, 042915] Published Fri Oct 17, 2014

]]>Evaporation of water out of a soil involves complicated and well-debated mechanisms. When plant roots are added into the soil, water transfer between the soil and the outside environment is even more complicated. Indeed, plants provide an additional process of water transfer. Water is pumped by the ...

[Phys. Rev. E 90, 042716] Published Thu Oct 16, 2014

]]>Molecular motors, by turning chemical energy into mechanical work, are responsible for active cellular processes. Often groups of these motors work together to perform their biological role. Motors in an ensemble are coupled and exhibit complex emergent behavior. Although large motor ensembles can b...

[Phys. Rev. E 90, 042717] Published Thu Oct 16, 2014

]]>In this work we consider the dynamics of vector rogue waves and dark-bright solitons in two-component nonlinear Schrödinger equations with various physically motivated time-dependent nonlinearity coefficients, as well as spatiotemporally dependent potentials. A similarity transformation is utilized ...

[Phys. Rev. E 90, 042912] Published Thu Oct 16, 2014

]]>Employing a simple ideal magnetohydrodynamic model in spherical geometry, we show that the presence of either rotation or finite magnetic helicity is sufficient to induce dynamical reversals of the magnetic dipole moment. The statistical character of the model is similar to that of terrestrial magne...

[Phys. Rev. E 90, 043010] Published Thu Oct 16, 2014

]]>We provide an analytical model to describe the filling dynamics of horizontal cylindrical capillaries having charged walls. The presence of surface charge leads to two distinct effects: It leads to a retarding electrical force on the liquid column and also causes a reduced viscous drag force because...

[Phys. Rev. E 90, 043011] Published Thu Oct 16, 2014

]]>We solve a simple model that supports a dynamic phase transition and show conditions for the existence of the transition. Using methods of large deviation theory we analytically compute the probability distribution for activity and entropy production rates of the trajectories on a large ring with a ...

[Phys. Rev. E 90, 042123] Published Wed Oct 15, 2014

]]>Using Monte Carlo calculations we analyze the order and the universality class of phase transitions into a low-density (honeycomb) phase of a triangular antiferromagnetic three-state Bell-Lavis model. The results are obtained in a whole interval of chemical potential μ corresponding to the honeycomb...

[Phys. Rev. E 90, 042124] Published Wed Oct 15, 2014

]]>Mullins-Sekerka's instability at 3D self-similar growth of a spherical seed crystal in an undercooled fluid is discussed. The exact solution of the linearized stability problem is obtained. It is quite different from the conventional results of the quasisteady approximation. The instability occurs m...

[Phys. Rev. E 90, 042403] Published Wed Oct 15, 2014

]]>Within the Oseen-Frank theory we derive numerically exact solutions for axisymmetric localized states in chiral liquid crystal layers with homeotropic anchoring. These solutions describe recently observed two-dimensional skyrmions in confinement-frustrated chiral nematics [P. J. Ackerman et al., Phy...

[Phys. Rev. E 90, 042502] Published Wed Oct 15, 2014

]]>It is shown how to compute both direct and total effective connection matrices (deCMs and teCMs), which embody the strengths of neural connections between regions, from correlation-based functional CMs using propagator-based interferometry, a method that stems from geophysics and acoustics, coupled ...

[Phys. Rev. E 90, 042712] Published Wed Oct 15, 2014

]]>We present cryo x-ray diffraction microscopy of high-pressure-cryofixed bacteria and report high-convergence imaging with multiple image reconstructions. Hydrated D. radiodurans cells were cryofixed at 200 MPa pressure into ∼10-μm-thick water layers and their unstained, hydrated cellular environment...

[Phys. Rev. E 90, 042713] Published Wed Oct 15, 2014

]]>Cells generally convert external nutrient resources to support metabolism and growth. Understanding the thermodynamic efficiency of this conversion is essential to determine the general characteristics of cellular growth. Using a simple protocell model with catalytic reaction dynamics to synthesize ...

[Phys. Rev. E 90, 042714] Published Wed Oct 15, 2014

]]>Finding the global minimum-energy structure is one of the main problems of protein structure prediction. The face-centered-cubic (fcc) hydrophobic-hydrophilic (HP) lattice model can reach high approximation ratios of real protein structures, so the fcc lattice model is a good choice to predict the p...

[Phys. Rev. E 90, 042715] Published Wed Oct 15, 2014

]]>Agent-based models of the binary naming game are generalized here to represent a family of models parameterized by the introduction of two continuous parameters. These parameters define varying listener-speaker interactions on the individual level with one parameter controlling the speaker and the o...

[Phys. Rev. E 90, 042809] Published Wed Oct 15, 2014

]]>We study two-cluster solutions of an ensemble of generic limit-cycle oscillators in the vicinity of a Hopf bifurcation, i.e., Stuart-Landau oscillators, with a nonlinear global coupling. This coupling leads to conserved mean-field oscillations acting back on the individual oscillators as a forcing. ...

[Phys. Rev. E 90, 042911] Published Wed Oct 15, 2014

]]>Analysis tools that quantify the pressure and potential changes occurring over pressure-driven electrokinetic device elements are necessary for the design of optimal laboratory-on-a-chip devices. In this study, the resistance of a nanofluidic silica channel with negatively charged walls containing a...

[Phys. Rev. E 90, 043008] Published Wed Oct 15, 2014

]]>Lateral migration is the motion of a particle perpendicular to the direction of the surrounding flow. One of the factors leading to the lateral migration of a deformable particle in Stokes flow is the presence of a nearby wall. We numerically investigate the lateral migration of a capsule in a near-...

[Phys. Rev. E 90, 043009] Published Wed Oct 15, 2014

]]>A spatially and temporally resolved measurement of the synchronization of the naturally occurring dust acoustic wave to an external drive and the relaxation from the driven wave mode back to the naturally occuring wave mode is presented. This measurement provides a time-resolved measurement of the s...

[Phys. Rev. E 90, 043103] Published Wed Oct 15, 2014

]]>Irreversible contributions to the dynamics of nonequilibrium systems can be formulated in terms of dissipative, or irreversible, brackets. We discuss the structure of such irreversible brackets in view of a degeneracy implied by energy conservation, where we consider different types of symmetries of...

[Phys. Rev. E 90, 042121] Published Tue Oct 14, 2014

]]>The standard spectral scaling, S(f)∼1/fβ, has been traditionally used as a correlation measure characterizing the dynamical behavior of time series. The ubiquity of 1/f and 1/f2 spectra in many processes certainly suggests the existence of universal mechanisms, but also gives rise to the suspicion t...

[Phys. Rev. E 90, 042122] Published Tue Oct 14, 2014

]]>We present a granular system whose response under an impact load can be varied from rapidly decaying to almost constant amplitude waves by an external regulator. The system consists of a granular chain of larger spheres surrounded by small spheres, confined in a hollow cylindrical tube and supportin...

[Phys. Rev. E 90, 042204] Published Tue Oct 14, 2014

]]>Phase transitions are uncommon among homogeneous one-dimensional fluids of classical particles owing to a general nonexistence result due to van Hove. A way to circumvent van Hove's theorem is to consider an interparticle potential that is finite everywhere. Of this type is the generalized exponenti...

[Phys. Rev. E 90, 042306] Published Tue Oct 14, 2014

]]>A thin film confined to a liquid interface responds to uniaxial compression by wrinkling, and then by folding, that has been solved exactly before self-contact. Here, we address the mechanics of large folds, i.e., folds that absorb a length much larger than the wrinkle wavelength. With scaling argum...

[Phys. Rev. E 90, 042401] Published Tue Oct 14, 2014

]]>Subflorescence refers to crystallized salt structures that form inside a porous medium. We report a drying experiment revealing major development of subflorescence in the dry region of the porous medium away from the liquid zone. Using a combination of image analyses and numerical computations, we s...

[Phys. Rev. E 90, 042402] Published Tue Oct 14, 2014

]]>The combination of low elasticity modulus, anisotropy, and responsiveness to external fields drives the rich variety of experimentally observed pattern formation in nematic liquid crystals under capillary confinement. External fields of interest in technology and fundamental physics are flow fields,...

[Phys. Rev. E 90, 042501] Published Tue Oct 14, 2014

]]>Different types of interactions coexist and coevolve to shape the structure and function of a multiplex network. We propose here a general class of growth models in which the various layers of a multiplex network coevolve through a set of nonlinear preferential attachment rules. We show, both numeri...

[Phys. Rev. E 90, 042807] Published Tue Oct 14, 2014

]]>In this paper we explore the onset of cooperative traits in the public goods game. This well-known game involves N-agent interactions and thus reproduces a large number of social scenarios in which cooperation appears to be essential. Many studies have recently addressed how the structure of the int...

[Phys. Rev. E 90, 042808] Published Tue Oct 14, 2014

]]>We determine the maximum amount of work extractable in finite time by a demon performing continuous measurements on a quadratic Hamiltonian system subjected to thermal fluctuations, in terms of the information extracted from the system. The maximum work demon is found to apply a high-gain continuous...

[Phys. Rev. E 90, 042119] Published Mon Oct 13, 2014

]]>We solve the growing asymmetric Ising model [J. Sienkiewicz, K. Suchecki, and J. A. Hołyst, Phys. Rev. E 89, 012105 (2014)PLEEE810.1103/PhysRevE.89.012105] in the topologies of deterministic and stochastic (random) scale-free trees predicting its nonmonotonous behavior for external fields smaller th...

[Phys. Rev. E 90, 042120] Published Mon Oct 13, 2014

]]>We perform extensive coarse-grained (CG) Langevin dynamics simulations of intrinsically disordered proteins (IDPs), which possess fluctuating conformational statistics between that for excluded volume random walks and collapsed globules. Our CG model includes repulsive steric, attractive hydrophobic...

[Phys. Rev. E 90, 042709] Published Mon Oct 13, 2014

]]>The ability of migratory birds to orient relative to the Earth's magnetic field is believed to involve a coherent superposition of two spin states of a radical electron pair. However, the mechanism by which this coherence can be maintained in the face of strong interactions with the cellular environ...

[Phys. Rev. E 90, 042710] Published Mon Oct 13, 2014

]]>Although the radical pair (RP) model is widely accepted for birds' orientation, the physical mechanism of it is still not fully understood. In this paper we consider the RP model in the total angular-momentum representation and clearly show a detailed mechanism for orientation. When only the vertica...

[Phys. Rev. E 90, 042711] Published Mon Oct 13, 2014

]]>We investigate the modulation instability in oppositely directed coupler in the presence of higher-order effects. Using linear stability analysis, we obtain an expression for instability gain. Special attention is paid to find out the influence of self-steepening effect and intrapulse Raman scatteri...

[Phys. Rev. E 90, 042910] Published Mon Oct 13, 2014

]]>A simple reaction-diffusion-advection equation is proposed in a dichotomous tree network to discuss an optimal network. An optimal size ratio r is evaluated by the principle of maximization of total reaction rate. In the case of reaction-limited conditions, the optimal ratio can be larger than (1/2)...

[Phys. Rev. E 90, 040801] Published Fri Oct 10, 2014

]]>We study the evolution of a collection of individuals subject to Brownian diffusion, reproduction, and disappearance. In particular, we focus on the case where the individuals are initially prepared at equilibrium within a confined geometry. Such systems are widespread in physics and biology and app...

[Phys. Rev. E 90, 042118] Published Fri Oct 10, 2014

]]>We perform a series of deformation experiments on a monodisperse, hard-sphere colloidal glass while simultaneously following the three-dimensional trajectories of roughly 50000 individual particles with a confocal microscope. In each experiment, we deform the glass in pure shear at a constant strain...

[Phys. Rev. E 90, 042305] Published Fri Oct 10, 2014

]]>The radical pair mechanism can help to explain avian orientation and navigation. Some evidence indicates that the intensity of external magnetic fields plays an important role in avian navigation. In this paper, using a two-stage model, we demonstrate that birds could reasonably detect the direction...

[Phys. Rev. E 90, 042707] Published Fri Oct 10, 2014

]]>We investigate the influence of chain rigidity on the dynamics of polymer translocation in the presence of binding particles (BPs) through a nanopore using two-dimensional Langevin dynamics simulations. With increasing chain rigidity κ, the mean translocation time 〈τ〉 increases monotonically due to ...

[Phys. Rev. E 90, 042708] Published Fri Oct 10, 2014

]]>Most of the complex social, technological, and biological networks have a significant community structure. Therefore the community structure of complex networks has to be considered as a universal property, together with the much explored small-world and scale-free properties of these networks. Desp...

[Phys. Rev. E 90, 042806] Published Fri Oct 10, 2014

]]>Crack patterns of drying paste and their statistical properties are investigated through smoothed particle hydrodynamics, which is one method for solving continuum equations in the Lagrangian description. In addition to reproducing a realistic crack pattern, we also find that the average area of a f...

[Phys. Rev. E 90, 042909] Published Fri Oct 10, 2014

]]>We use synthetic turbulence simulations to study how inertial particles cluster in a turbulent flow, for a wide range of Stokes numbers. Two different types of synthetic turbulence are used: one Gaussian, where the time evolution of the velocity field is a simple phase shift, and one non-Gaussian, w...

[Phys. Rev. E 90, 043005] Published Fri Oct 10, 2014

]]>We investigate regular configurations of a small number of non-Brownian particles settling under gravity in a viscous fluid. The particles do not touch each other and can move relative to each other. The dynamics is analyzed in the point-particle approximation. A family of regular configurations is ...

[Phys. Rev. E 90, 043007] Published Fri Oct 10, 2014

]]>[Phys. Rev. E 90, 040001] Published Thu Oct 09, 2014

]]>Starting from preferences on N proposed policies obtained via questionnaires from a sample of the electorate, an Ising spin-glass model in a field can be constructed from which a political party could find the subset of the proposed policies which would maximize its appeal, form a coherent choice in...

[Phys. Rev. E 90, 042117] Published Thu Oct 09, 2014

]]>Recently, as the controllability of complex networks attracts much attention, how to design and optimize the controllability of networks has become a common and urgent problem in the field of controlling complex networks. Previous work focused on the structural perturbation and neglected the role of...

[Phys. Rev. E 90, 042804] Published Thu Oct 09, 2014

]]>Time-varying social interaction networks empirically show heterogeneous dynamics, such as bursty behavior and broad distributions of event durations. The authors propose four microscopic memory mechanisms from which these heterogeneities emerge.

[Phys. Rev. E 90, 042805] Published Thu Oct 09, 2014

]]>We investigate cluster synchronization in coupled map networks in the presence of heterogeneous delays. We find that while the parity of heterogeneous delays plays a crucial role in determining the mechanism of cluster formation, the cluster synchronizability of the network gets affected by the amou...

[Phys. Rev. E 90, 042907] Published Thu Oct 09, 2014

]]>By using compressive sensing (CS) theory, a broad class of static signals can be reconstructed through a sequence of very few measurements in the framework of a linear system. For networks with nonlinear and time-evolving dynamics, is it similarly possible to recover an unknown input signal from onl...

[Phys. Rev. E 90, 042908] Published Thu Oct 09, 2014

]]>We study transport properties of bulk-disordered quasi-one-dimensional (Q1D) wires paying main attention to the role of long-range correlations embedded into the disorder. First, we show that for stratified disorder for which the disorder is the same for all individual chains forming the Q1D wire, t...

[Phys. Rev. E 90, 042115] Published Wed Oct 08, 2014

]]>We revisit the anchored Toom interface and use Kardar-Parisi-Zhang scaling theory to argue that the interface fluctuations are governed by the Airy1 process with the role of space and time interchanged. The predictions, which contain no free parameter, are numerically well confirmed for space-time s...

[Phys. Rev. E 90, 042116] Published Wed Oct 08, 2014

]]>We consider a phenomenological continuum theory for an active nematic fluid and show that there exists a universal, model-independent instability which renders the homogeneous nematic state unstable to order fluctuations. Using numerical and analytic tools we show that, in the vicinity of a critical...

[Phys. Rev. E 90, 042304] Published Wed Oct 08, 2014

]]>The authors develop a model for movement of water and sugars within the leaves of plants. Using the available experimental data, they conclude that it is feasible for sugar to be loaded into the plant vascular system by diffusion through pores and then effectively trapped by transformation into larger sugars. Their model should stimulate additional experimental and theoretical studies.

[Phys. Rev. E 90, 042704] Published Wed Oct 08, 2014

]]>The characteristic relaxation time τ of protein hydration water exhibits a strong hydration level h dependence. The dynamic crossover is observed when h is higher than the monolayer hydration level hc=0.2–0.25 and becomes more visible as h increases. When h is lower than hc, τ only exhibits Arrheniu...

[Phys. Rev. E 90, 042705] Published Wed Oct 08, 2014

]]>This paper resolves the long standing debate as to the proper time scale 〈τ〉 of the onset of the immunological synapse bond, the noncovalent chemical bond defining the immune pathways involving T cells and antigen presenting cells. Results from our model calculations show 〈τ〉 to be of the order of s...

[Phys. Rev. E 90, 042706] Published Wed Oct 08, 2014

]]>We examine numerically the influence of intrapulse Raman scattering (IRS) on the stable stationary pulses in the presence of constant linear and nonlinear gain as well as spectral filtering. Numerical results show that the small change of the value of the parameter describing IRS leads to qualitativ...

[Phys. Rev. E 90, 042906] Published Wed Oct 08, 2014

]]>[Phys. Rev. E 90, 049903] Published Wed Oct 08, 2014

]]>We present a study of the molecular diffusion in freely suspended smectic-A liquid crystal films with thicknesses ranging from 20 down to only two molecular layers. The molecular mobility is directly probed by determining the trajectories of single, fluorescent tracer molecules. We demonstrate, usin...

[Phys. Rev. E 90, 040501] Published Tue Oct 07, 2014

]]>We discuss the equivalence relation between the Euclidean bipartite matching problem on the line and on the circumference and the Brownian bridge process on the same domains. The equivalence allows us to compute the correlation function and the optimal cost of the original combinatorial problem in t...

[Phys. Rev. E 90, 042112] Published Tue Oct 07, 2014

]]>