We report erosion of synchronization in networks of coupled phase oscillators, a phenomenon where perfect phase synchronization is unattainable in steady state, even in the limit of infinite coupling. An analysis reveals that the total erosion is separable into the product of terms characterizing co...

[Phys. Rev. E 91, 010802] Published Wed Jan 28, 2015

]]>To bridge the gap between single and isolated pore systems to multipore systems, such as membranes and electrodes, we studied an array of nanochannels with varying interchannel spacing that controlled the degree of channel communication. Instead of treating them as individual channels connected in p...

[Phys. Rev. E 91, 011002] Published Wed Jan 28, 2015

]]>In the time evolution of isolated quantum systems out of equilibrium, local observables generally relax to a long-time asymptotic value, governed by the expectation values (diagonal matrix elements) of the corresponding operator in the eigenstates of the system. The temporal fluctuations around this...

[Phys. Rev. E 91, 012144] Published Wed Jan 28, 2015

]]>We theoretically investigate fluctuation relations in a classical incomplete measurement process where only partial information is available. The scenario we consider consists of two coupled single-electron boxes where one or both devices can undergo a nonequilibrium transformation according to a ch...

[Phys. Rev. E 91, 012145] Published Wed Jan 28, 2015

]]>I investigate the quantum phase transition of the transverse-field quantum Ising model in which nearest neighbors are defined according to the connectivity of scale-free networks. Using a continuous-time quantum Monte Carlo simulation method and the finite-size scaling analysis, I identify the quant...

[Phys. Rev. E 91, 012146] Published Wed Jan 28, 2015

]]>In cultures of unicellular algae, features of single cells, such as cellular volume and starch content, are thought to be the result of carefully balanced growth and division processes. Single-cell analyses of synchronized photoautotrophic cultures of the unicellular alga Chlamydomonas reinhardtii r...

[Phys. Rev. E 91, 012711] Published Wed Jan 28, 2015

]]>Mechanical stress normal to the boundary of a tissue sheet can arise in both constrained as well as unconstrained epithelial layers through pushing and pulling of surrounding tissue and substrate adhesiveness, respectively. A continuum model is used to investigate how such stress influences the epit...

[Phys. Rev. E 91, 012712] Published Wed Jan 28, 2015

]]>Analytical expressions are obtained for the main magnitudes of a symmetrically constricted vesicle. These equations provide an easy and compact way to predict minimal requirements for successful constriction and its main magnitudes. Thus, they can be useful for the design of synthetic divisomes and ...

[Phys. Rev. E 91, 012713] Published Wed Jan 28, 2015

]]>Biological systems are modular, and this modularity evolves over time and in different environments. A number of observations have been made of increased modularity in biological systems under increased environmental pressure. We here develop a quasispecies theory for the dynamics of modularity in p...

[Phys. Rev. E 91, 012714] Published Wed Jan 28, 2015

]]>Human awareness plays an important role in the spread of infectious diseases and the control of propagation patterns. The dynamic process with human awareness is called awareness cascade, during which individuals exhibit herd-like behavior because they are making decisions based on the actions of ot...

[Phys. Rev. E 91, 012822] Published Wed Jan 28, 2015

]]>Network theory and inverse modeling are two standard tools of applied physics, whose combination is needed when studying the dynamical organization of spatially distributed systems from indirect measurements. However, the associated connectivity estimation may be affected by spatial leakage, an arti...

[Phys. Rev. E 91, 012823] Published Wed Jan 28, 2015

]]>This paper studies how the degree of synchronization in a large population of coupled oscillators responds to a periodic external force. After introducing the concept of susceptibility for the response to the external force, the author finds that in the case of uniform coupling, this susceptibility diverges at the phase transition to macroscopic synchronization. For the case of random coupling, the susceptibility exhibits a cusp when the system enters a glasslike phase.

[Phys. Rev. E 91, 012925] Published Wed Jan 28, 2015

]]> Generation of shear Alfvén waves by the Doppler-shifted ion-cyclotron-resonance (DICR) of a spiraling H^{+} ion beam with magnetic fluctuations in a dual-species magnetized plasma with He^{+} and H^{+} ions has been investigated on the Large Plasma Device. The ambient plasma density and electron temperature ...

[Phys. Rev. E 91, 013109] Published Wed Jan 28, 2015

]]>Multiparticle collision dynamics (MPC), a particle-based mesoscale simulation technique for complex fluid, is widely employed in nonequilibrium simulations of soft matter systems. To maintain a defined thermodynamic state, thermalization of the fluid is often required for certain MPC variants. We in...

[Phys. Rev. E 91, 013310] Published Wed Jan 28, 2015

]]>A pure-dephasing reservoir acting on an individual quantum system induces loss of coherence without energy exchange. When acting on composite quantum systems, dephasing reservoirs can lead to a radically different behavior. Transport of heat between two pure-dephasing Markovian reservoirs is predict...

[Phys. Rev. E 91, 012143] Published Tue Jan 27, 2015

]]>Quantum manifestations of isoperiodic stable structures (QISSs) have a crucial role in the current behavior of quantum dissipative ratchets. In this context, the simple shape of the ISSs has been conjectured to be an almost exclusive feature of the classical system. This has drastic consequences for...

[Phys. Rev. E 91, 010903] Published Mon Jan 26, 2015

]]>We consider the rates of noise-induced switching between the stable states of dissipative dynamical systems with delay and also the rates of noise-induced extinction, where such systems model population dynamics. We study a class of systems where the evolution depends on the dynamical variables at a...

[Phys. Rev. E 91, 012139] Published Mon Jan 26, 2015

]]> A model of superconducting vortices under overdamped motion is currently used for describing type-II superconductors. Recently, this model has been identified to a nonlinear Fokker-Planck equation and associated to an entropic form characteristic of nonextensive statistical mechanics, S_{2}(t)≡S_{q=2}(t)....

[Phys. Rev. E 91, 012140] Published Mon Jan 26, 2015

]]>The authors experimentally study a vibrating granular layer that shows a transition between a disordered, liquidlike phase and a phase with ordered, crystalline clusters. They study the properties of this nonequilibrium phase transition and find evidence for universality in the critical exponents.

[Phys. Rev. E 91, 012141] Published Mon Jan 26, 2015

]]>We propose a generic framework to describe classical Ising-like models defined on arbitrary graphs. The energy spectrum is shown to be the Hadamard transform of a suitably defined sparse “coding” vector associated with the graph. We expect that the existence of a fast Hadamard transform algorithm (u...

[Phys. Rev. E 91, 012142] Published Mon Jan 26, 2015

]]>The authors did large-scale three-dimensional simulations of non-Brownian suspensions of soft- and hard-sphere particles. From measurements of viscosity over five orders of magnitude, they conclude that rheology at the jamming density is described by a sum of three power laws, and that asymptotic behaviors are not simply connected by scaling functions.

[Phys. Rev. E 91, 012203] Published Mon Jan 26, 2015

]]>The authors study the effects of fluid flow on solute transport away from model aquatic microorganisms. They conclude that toxins released from surface protrusions (microvilli) have less impact on their immediate surroundings, like pollutants released from a tall chimney reaching into the wind. They suggest that the length of microvilli evolved to reach through the concentration boundary layer.

[Phys. Rev. E 91, 012709] Published Mon Jan 26, 2015

]]>Single-molecule force spectroscopy using an atomic force microscope (AFM) can be used to measure the average unfolding force of proteins in a constant velocity experiment. In combination with Monte Carlo simulations and through the application of the Zhurkov-Bell model, information about the paramet...

[Phys. Rev. E 91, 012710] Published Mon Jan 26, 2015

]]>We study the problem of a particle or message that travels as a biased random walk towards a target node in a network in the presence of traps. The bias is represented as the probability p of the particle to travel along the shortest path to the target node. The efficiency of the transmission proces...

[Phys. Rev. E 91, 012817] Published Mon Jan 26, 2015

]]>We present a Hawkes-model approach to the foreign exchange market in which the high-frequency price dynamics is affected by a self-exciting mechanism and an exogenous component, generated by the pre-announced arrival of macroeconomic news. By focusing on time windows around the news announcement, we...

[Phys. Rev. E 91, 012819] Published Mon Jan 26, 2015

]]>Networks studied in many disciplines, including neuroscience and mathematical biology, have connectivity that may be stochastic about some underlying mean connectivity represented by a non-normal matrix. Furthermore, the stochasticity may not be independent and identically distributed (iid) across e...

[Phys. Rev. E 91, 012820] Published Mon Jan 26, 2015

]]>It is common in the study of networks to investigate intermediate-sized (or “meso-scale”) features to try to gain an understanding of network structure and function. For example, numerous algorithms have been developed to try to identify “communities,” which are typically construed as sets of nodes ...

[Phys. Rev. E 91, 012821] Published Mon Jan 26, 2015

]]>The propagation, in a shallow water, of nonlinear ring waves in the form of multisolitons is investigated theoretically. This is done by solving both analytically and numerically the cylindrical (also referred to as concentric) Korteweg-de Vries equation (cKdVE). The latter describes the propagation...

[Phys. Rev. E 91, 012921] Published Mon Jan 26, 2015

]]> The dynamics of a particle confined in the elliptical stadium billiard with rectangular thickness 2t, major axis 2a, and minor axis 2b=2 is numerically investigated in a reduced phase space with discrete time n. Both relative measure r(n), with asymptotic value r(n→∞)=r_{∞} and Shannon entropy s, are c...

[Phys. Rev. E 91, 012923] Published Mon Jan 26, 2015

]]>We study a two-component nonlinear Schrödinger system with equal, repulsive cubic interactions and different dispersion coefficients in the two components. We consider states that have a dark solitary wave in one component. Treating it as a frozen one, we explore the possibility of the formation of ...

[Phys. Rev. E 91, 012924] Published Mon Jan 26, 2015

]]>The electrically driven displacement of a viscous poorly conducting Newtonian fluid drop positioned between conducting parallel plates is studied both theoretically and experimentally. A mathematical expression for the average-steady velocity is developed by using Darcy flow analysis with an interfa...

[Phys. Rev. E 91, 013012] Published Mon Jan 26, 2015

]]>In this paper we give the complete classification of solitons for a cubic nonlinear Schrödinger equation on the simplest network with a nontrivial topology: the tadpole graph, i.e., a ring with a half line attached to it and free boundary conditions at the junction. This is a step toward the modeliz...

[Phys. Rev. E 91, 013206] Published Mon Jan 26, 2015

]]>A random three-dimensional (3D) porous medium can be reconstructed from a two-dimensional (2D) image by reconstructing an image from the original 2D image, and then repeatedly using the result to reconstruct the next 2D image. The reconstructed images are then stacked together to generate the entire...

[Phys. Rev. E 91, 013308] Published Mon Jan 26, 2015

]]>In this paper a lattice Boltzmann equation (LBE) method is designed that is different from the previous LBE for the Cahn-Hilliard equation (CHE). The starting point of the present CHE LBE model is from the kinetic theory and the work of Lee and Liu [T. Lee and L. Liu, J. Comput. Phys. 229, 8045 (201...

[Phys. Rev. E 91, 013309] Published Mon Jan 26, 2015

]]>In classical statistical mechanics there is a clear correlation between relaxation to equilibrium and chaos. In contrast, for isolated quantum systems this relation is—to say the least—fuzzy. In this work we try to unveil the intricate relation between the relaxation process and the transition from ...

[Phys. Rev. E 91, 010902] Published Fri Jan 23, 2015

]]>Narrow escape problems consider the calculation of the mean first passage time (MFPT) for a particle undergoing Brownian motion in a domain with a boundary that is everywhere reflecting except for at finitely many small holes. Asymptotic methods for solving these problems involve finding approximati...

[Phys. Rev. E 91, 012137] Published Fri Jan 23, 2015

]]>The existence of a finite-size effect in one-dimensional oscillator systems causing the energy current power spectrum to saturate to a constant value at low frequencies is discussed. It is shown that a mode-coupling theory presented in earlier papers can be used to predict the frequency of onset of ...

[Phys. Rev. E 91, 012138] Published Fri Jan 23, 2015

]]>The hydrodynamic part of the velocity autocorrelation function of a granular fluid in the homogeneous cooling state has been calculated by using mode-coupling theory for a finite system with periodic boundary conditions. The existence of the shearing instability, leading to a divergent behavior of t...

[Phys. Rev. E 91, 012202] Published Fri Jan 23, 2015

]]>An effective method of controlling chaos is proposed. The control mechanism of the proposed method can be interpreted as the synchronization of a chaotic system with a system of harmonic oscillators. It is a practically noninvasive method that does not change the solution of dynamical systems, but s...

[Phys. Rev. E 91, 012920] Published Fri Jan 23, 2015

]]>We present a sparse matrix permutation from graph theory that gives stable incomplete lower-upper preconditioners necessary for iterative solutions to the steady-state density matrix for quantum optomechanical systems. This reordering is efficient, adding little overhead to the computation, and resu...

[Phys. Rev. E 91, 013307] Published Fri Jan 23, 2015

]]>Yagasaki et al. [Phys. Rev. E 89, 020301 (2014)PRESCM10.1103/PhysRevE.89.020301] present results from a molecular dynamics trajectory illustrating coarsening of ice, which they interpret as evidence of transient coexistence between two distinct supercooled phases of liquid water. We point out that n...

[Phys. Rev. E 91, 016301] Published Fri Jan 23, 2015

]]>Two different scenarios have been proposed on the phase separation occurring in the deeply supercooled liquid water. We discuss what we can derive from our simulation results for the two scenarios and propose a way for future investigation. We also demonstrate that the phase separation in the superc...

[Phys. Rev. E 91, 016302] Published Fri Jan 23, 2015

]]>The epidemic threshold of the susceptible-infected-susceptible (SIS) dynamics on random networks having a power law degree distribution with exponent γ>3 has been investigated using different mean-field approaches, which predict different outcomes. We performed extensive simulations in the quasis...

[Phys. Rev. E 91, 012816] Published Thu Jan 22, 2015

]]> A clear signature of classical chaoticity in the quantum regime is the fractal Weyl law, which connects the density of eigenstates to the dimension D_{0} of the classical invariant set of open systems. Quantum systems of interest are often partially open (e.g., cavities in which trajectories are partia...

[Phys. Rev. E 91, 012919] Published Thu Jan 22, 2015

]]> We discuss a long-standing discrepancy in the equation of state of charge-neutral plasmas, the occurrence of an e^{2} direct term. This e^{2} term may appear in dependence of the way to determine the mean value of the potential energy. We show that such a contribution should not appear for pure Coulomb in...

[Phys. Rev. E 91, 013108] Published Thu Jan 22, 2015

]]>We conduct a study on heat conduction through coupled Fermi-Pasta-Ulam (FPU) chains by using classical molecular dynamics simulations. Our attention is dedicated to showing how the phonon transport is affected by the interchain coupling. It has been well accepted that the heat conduction could be im...

[Phys. Rev. E 91, 012136] Published Wed Jan 21, 2015

]]>Nowadays, massive amounts of data are available for analysis in natural and social systems and the tasks to depict system structures from the data, i.e., the inverse problems, become one of the central issues in wide interdisciplinary fields. In this paper, we study the inverse problem of dynamic co...

[Phys. Rev. E 91, 012814] Published Wed Jan 21, 2015

]]>We consider an infinite-sized population where an infinite number of traits compete simultaneously. The replicator equation with a diffusive term describes time evolution of the probability distribution over the traits due to selection and mutation on a mean-field level. We argue that this dynamics ...

[Phys. Rev. E 91, 012815] Published Wed Jan 21, 2015

]]>We introduce a system of pulse-coupled oscillators that can change both their phases and frequencies and prove that when there is a separation of time scales between phase and frequency adjustment the system converges to exact synchrony on strongly connected graphs with time delays. The analysis inv...

[Phys. Rev. E 91, 012916] Published Wed Jan 21, 2015

]]>Constantly acting centrifugal forces on Turing pattern forming systems have been observed to induce orientation and wavelength changes on Turing structures. Here, we will consider a periodic modulation of such centrifugal forces and their effects on pattern formation. Depending on the oscillation pe...

[Phys. Rev. E 91, 012917] Published Wed Jan 21, 2015

]]>We study a one-dimensional chain of harmonically coupled units in an asymmetric anharmonic soft potential. Due to nonlinear localization of energy, this system exhibits extreme events in the sense that individual elements of the chain show very large excitations. A detailed statistical analysis of e...

[Phys. Rev. E 91, 012918] Published Wed Jan 21, 2015

]]>Electrical resistivity is shown to saturate in solid-density aluminum in the warm dense matter regime. Calculations are done using the average-atom model SCAALP and the finite-temperature Ziman-Evans formula for electrical resistivity. The mean free path is estimated using the Drude law. This mean f...

[Phys. Rev. E 91, 013105] Published Wed Jan 21, 2015

]]>The acceleration of dense targets driven by the radiation pressure of high-intensity lasers leads to a Rayleigh-Taylor instability (RTI) with rippling of the interaction surface. Using a simple model it is shown that the self-consistent modulation of the radiation pressure caused by a sinusoidal rip...

[Phys. Rev. E 91, 013106] Published Wed Jan 21, 2015

]]>The ion cooling in collisionless plasma expansion is revisited. It is shown that, in the case of an initial Maxwellian ion distribution, the ion cooling is much slower than predicted by an adiabatic law linking the ion temperature to the ion density. The origin of this behavior is a strong distortio...

[Phys. Rev. E 91, 013107] Published Wed Jan 21, 2015

]]>A recent and unexpected discrepancy between ab initio simulations and the interpretation of a laser shock experiment on aluminum, probed by x-ray Thomson scattering (XRTS), is addressed. The ion-ion structure factor deduced from the XRTS elastic peak (ion feature) is only compatible with a strongly ...

[Phys. Rev. E 91, 011101] Published Tue Jan 20, 2015

]]>We propose to put the well-known nonthermal and suprathermal empirical distributions, used in plasma physics, onto a more rigorous foundation. Their use is frequently criticized because of a lack of formal derivation and physical explanation. A connection between these non-Maxwellian distributions a...

[Phys. Rev. E 91, 012133] Published Tue Jan 20, 2015

]]>We investigate the collective dynamics of self-propelled particles able to probe and anticipate the orientation of their neighbors. We show that a simple anticipation strategy hinders the emergence of homogeneous flocking patterns. Yet anticipation promotes two other forms of self-organization: coll...

[Phys. Rev. E 91, 012134] Published Tue Jan 20, 2015

]]>We study the transport process of interacting Brownian particles in a tube of varying cross section. To describe this process we introduce a modified Fick-Jacobs equation, considering particles that interact through a hard-core potential. We were able to solve the equation with numerical methods for...

[Phys. Rev. E 91, 012135] Published Tue Jan 20, 2015

]]>The adhesion of a stiff film onto a curved substrate often generates elastic stresses in the film that eventually give rise to its delamination. Here we predict that delamination of very thin films can be dramatically suppressed through tiny, smooth deformations of the substrate, dubbed here “wrinkl...

[Phys. Rev. E 91, 012407] Published Tue Jan 20, 2015

]]>We isolate single Schallamach waves—detachment fronts that mediate inhomogeneous sliding between an elastomer and a hard surface—to study their creation and dynamics. Based on measurements of surface displacement using high-speed in situ imaging, we establish a Burgers vector for the waves. The crys...

[Phys. Rev. E 91, 012408] Published Tue Jan 20, 2015

]]> Pattern formation of a step on a growing crystal surface induced by a straight line source of atoms, which is escaping from the step at a velocity V_{p}, is studied with the use of a phase field model. From a straight step, fluctuations of the most unstable wavelength λ_{max} grow. Competition of intrusio...

[Phys. Rev. E 91, 012409] Published Tue Jan 20, 2015

]]>Confinement has a strong influence on diffusing nano-sized clusters. In particular, biomolecular aggregates within the shell-like confining space of a bacterial cell have been shown to display a variety of localization patterns, from being midcell to the poles. How does the confining space determine...

[Phys. Rev. E 91, 012705] Published Tue Jan 20, 2015

]]>We present a model of ant traffic considering individual ants as self-propelled particles undergoing single-file motion on a one-dimensional trail. Recent experiments on unidirectional ant traffic in well-formed natural trails showed that the collective velocity of ants remains approximately unchang...

[Phys. Rev. E 91, 012706] Published Tue Jan 20, 2015

]]>We propose a model that accounts for the budding behavior of domains in lipid bilayers, where each of the bilayer leaflets has a coupling between its local curvature and the local lipid composition. The compositional asymmetry between the two monolayers leads to an overall spontaneous curvature. The...

[Phys. Rev. E 91, 012708] Published Tue Jan 20, 2015

]]>We investigate the impact of degree-degree correlations on the spectra of networks. Even though density distributions exhibit drastic changes depending on the (dis)assortative mixing and the network architecture, the short-range correlations in eigenvalues exhibit universal random matrix theory pred...

[Phys. Rev. E 91, 012813] Published Tue Jan 20, 2015

]]>Continuouslyphase-locked (autoresonant) dark solitons of the defocusing nonlinear Schrodinger equation are excited and controlled by driving the system by a slowly chirped wavelike perturbation. The theory of these excitations is developed using Whitham's averaged variational principle and compared ...

[Phys. Rev. E 91, 012913] Published Tue Jan 20, 2015

]]>Double kicked rotors (DKRs) appear to be the simplest nonintegrable Hamiltonian systems featuring classical translational symmetry in phase space (i.e., in angular momentum) for an infinite set of values (the rational ones) of a parameter η. The experimental realization of quantum DKRs by atom-optic...

[Phys. Rev. E 91, 012914] Published Tue Jan 20, 2015

]]>When superimposing the potentials of external fields on the Coulomb potential of the hydrogen atom, a saddle point (called the Stark saddle point) appears. For energies slightly above the saddle point energy, one can find classical orbits that are located in the vicinity of this point. We follow tho...

[Phys. Rev. E 91, 012915] Published Tue Jan 20, 2015

]]>The onset and decay of convection in a spherical cavity filled with ferromagnetic nanofluid and heated from below are investigated experimentally. It is found that, unlike in a single-component Newtonian fluid where stationary convection sets in as a result of supercritical bifurcation and where con...

[Phys. Rev. E 91, 013010] Published Tue Jan 20, 2015

]]>The generation of identical droplets of controllable size in the micrometer range is a problem of much interest owing to the numerous technological applications of such droplets. This work reports an investigation of the regime of periodic emission of droplets from an electrified oscillating meniscu...

[Phys. Rev. E 91, 013011] Published Tue Jan 20, 2015

]]>An approach to simulating warm and hot dense matter that combines density-functional-theory-based calculations of the electronic structure to classical molecular dynamics simulations with pair interaction potentials is presented. The method, which we call pseudoatom molecular dynamics, can be applie...

[Phys. Rev. E 91, 013104] Published Tue Jan 20, 2015

]]>The 2+1-dimensional compressible Euler equations are investigated here. A power-type elliptic vortex ansatz is introduced and thereby reduction obtains to an eight-dimensional nonlinear dynamical system. The latter is shown to have an underlying integral Ermakov-Ray-Reid structure of Hamiltonian typ...

[Phys. Rev. E 91, 013204] Published Tue Jan 20, 2015

]]>By using canonical transformations we obtain localized (in space) exact solutions of the nonlinear Schrödinger equation (NLSE) with cubic and quintic space and time modulated nonlinearities and in the presence of time-dependent and inhomogeneous external potentials and amplification or absorption (s...

[Phys. Rev. E 91, 013205] Published Tue Jan 20, 2015

]]>In parallel applications running on supercomputers, the computation is divided among processes, each one solving part of the problem. The authors provide a description of a large number of processes as a continuous medium and find that local small delays (idle periods) can propagate as waves and lead to an overall degradation in performance of the computation.

[Phys. Rev. E 91, 013306] Published Tue Jan 20, 2015

]]>[Phys. Rev. E 91, 019904] Published Tue Jan 20, 2015

]]>[Phys. Rev. E 91, 019905] Published Tue Jan 20, 2015

]]>Using the exactly solvable XY spin chain as an example, we consider nonadiabatic variation of the Hamiltonian along an isospectral trajectory. We suggest that quantum phase transitions (QPTs) can be revealed by the nonadiabatic geometric or Aharonov-Anandan phase, accumulated in a cycle of the state...

[Phys. Rev. E 91, 012129] Published Fri Jan 16, 2015

]]>We establish a generalization of the fluctuation theorem for partially masked nonequilibrium dynamics. We introduce a partial entropy production with a subset of all possible transitions, and show that the partial entropy production satisfies the integral fluctuation theorem. Our result reveals the ...

[Phys. Rev. E 91, 012130] Published Fri Jan 16, 2015

]]> We study critical hysteresis in the random-field Ising model on a two-dimensional periodic lattice with a variable coordination number z_{eff} in the range 3≤z_{eff}≤6. We find that the model supports critical behavior in the range 4<z_{eff}≤6, but the critical exponents are independent of z_{eff}. The resul...

[Phys. Rev. E 91, 012131] Published Fri Jan 16, 2015

]]>We present a numerical study on the ordering dynamics of a one-dimensional nonequilibrium Ising spin system with chirality. This system is characterized by a direction-dependent spin update rule. Pairs of +− spins can flip to ++ or −− with probability (1−u) or to −+ with probability u while −+ pairs...

[Phys. Rev. E 91, 012132] Published Fri Jan 16, 2015

]]>To unravel how the microstructure affects the fracture surface roughness in heterogeneous brittle solids like rocks or ceramics, we characterized the roughness statistics of postmortem fracture surfaces in homemade materials of adjustable microstructure length scale and porosity, obtained by sinteri...

[Phys. Rev. E 91, 012406] Published Fri Jan 16, 2015

]]>We study the response of an autoregulated gene to a range of concentrations of signal molecules. We show that transcriptional leakage and noise due to translational bursting have the opposite effects. In a positively autoregulated gene, increasing the noise converts the response from graded to binar...

[Phys. Rev. E 91, 012704] Published Fri Jan 16, 2015

]]>An exact spectral analysis of the Markov propagator for the voter model is presented for the complete graph and extended to the complete bipartite graph and uncorrelated random networks. Using a well-defined Martingale approximation in diffusion-dominated regions of phase space, which is almost ever...

[Phys. Rev. E 91, 012812] Published Fri Jan 16, 2015

]]>This work casts the semiclassical zeta function in a form suitable for practical calculations of energy levels for rather general systems. To accomplish this, the zeta function is approximated by applying an initial-value representation (IVR) treatment to the traces of the transfer matrix that appea...

[Phys. Rev. E 91, 012912] Published Fri Jan 16, 2015

]]>We consider different methods, which do not rely on numerical simulations of the percolation process, to approximate percolation thresholds in networks. We perform a systematic analysis on synthetic graphs and a collection of 109 real networks to quantify their effectiveness and reliability as predi...

[Phys. Rev. E 91, 010801] Published Thu Jan 15, 2015

]]>Variants of fluctuation theorems recently discovered in the statistical mechanics of nonequilibrium processes may be used for the efficient determination of high-dimensional integrals as typically occurring in Bayesian data analysis. In particular for multimodal distributions, Monte Carlo procedures...

[Phys. Rev. E 91, 012127] Published Thu Jan 15, 2015

]]>We investigate the relaxation of long-tailed distributions under stochastic dynamics that do not support such tails. Linear relaxation is found to be a borderline case in which long tails are exponentially suppressed in time but not eliminated. Relaxation stronger than linear suppresses long tails i...

[Phys. Rev. E 91, 012128] Published Thu Jan 15, 2015

]]>We investigate the nonlinear response of macromolecular thin films subjected to high-amplitude ultrasonic shear oscillation using a sphere-plane contact geometry. At a film thickness comparable to the radius of gyration, we observe the rheological properties intermediate between bulk and boundary no...

[Phys. Rev. E 91, 012405] Published Thu Jan 15, 2015

]]>The present paper deals with the dynamics of bus networks, which consist of several identical dc bus systems connected by resistors. It is analytically guaranteed that the stability of a stand-alone dc bus system is equivalent to that of the networks, independent of the number of bus systems and the...

[Phys. Rev. E 91, 012911] Published Thu Jan 15, 2015

]]>A motile bacterium swims by generating flow in its surrounding liquid. Anisotropy of the suspending liquid significantly modifies the swimming dynamics and corresponding flow signatures of an individual bacterium and impacts collective behavior. We study the interactions between swimming bacteria in...

[Phys. Rev. E 91, 013009] Published Thu Jan 15, 2015

]]>[Phys. Rev. E 91, 019903] Published Thu Jan 15, 2015

]]>We study the dynamics of nonaligning, noninteracting self-propelled particles confined to a box in two dimensions. In the strong confinement limit, when the persistence length of the active particles is much larger than the size of the box, particles stay on the boundary and align with the local bou...

[Phys. Rev. E 91, 012125] Published Wed Jan 14, 2015

]]>Completely positive quantum operations are frequently discussed in the contexts of statistical mechanics and quantum information. They are customarily given by maps forming positive operator-values measures. To intuitively understand the physical meanings of such abstract operations, the method of p...

[Phys. Rev. E 91, 012126] Published Wed Jan 14, 2015

]]>We implement Brownian dynamics to investigate the static properties of colloidal particles confined anisotropically and interacting via a potential which can be tailored in a repulsive-attractive-respulsive fashion as the interparticle distance increases. A diverse number of structural phases are se...

[Phys. Rev. E 91, 012305] Published Wed Jan 14, 2015

]]> We report a direct measurement of the friction coefficient ξ_{c} of two fluctuating contact lines formed on a fiber surface when a long glass fiber intersects the two water-air interfaces of a thin soap film. The glass fiber of diameter d in the range of 0.4–4 μm and length 100–300 μm is glued onto the...

[Phys. Rev. E 91, 012404] Published Wed Jan 14, 2015

]]>It has been observed that dynamo action occurs in the von-Kármán-Sodium (VKS) experiment only when the rotating disks and the blades are made of soft iron. The purpose of this paper is to numerically investigate the role of soft iron in the VKS dynamo scenario. This is done by using a mean-field mod...

[Phys. Rev. E 91, 013008] Published Wed Jan 14, 2015

]]>It is often believed that the Rayleigh-Lagrange formalism for classical dissipative systems is unable to encompass forces described by nonlinear functions of the velocities. Here we show that this is indeed a misconception.

[Phys. Rev. E 91, 013203] Published Wed Jan 14, 2015

]]>We introduce variable focused local search algorithms for satisfiabiliity problems. Usual approaches focus uniformly on unsatisfied clauses. The methods described here work by focusing on random variables in unsatisfied clauses. Variants are considered where variables are selected uniformly and rand...

[Phys. Rev. E 91, 013305] Published Wed Jan 14, 2015

]]>While ABC triblock copolymers are known to form a plethora of dual-mode (i.e., order-on-order) nanostructures, bicomponent ABA triblock copolymers normally self-assemble into single morphologies at thermodynamic incompatibility levels up to the strong-segregation regime. In this study, we employ on-...

[Phys. Rev. E 91, 010601] Published Tue Jan 13, 2015

]]>Feller studied a branching process and found that the distribution for this process approximately obeys a diffusion equation [W. Feller, in Proceedings of the Second Berkeley Symposium on Mathematical Statistics and Probability (University of California Press, Berkeley and Los Angeles, 1951), pp. 22...

[Phys. Rev. E 91, 012123] Published Tue Jan 13, 2015

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