The stimulus-dynamic response is an important topic in physics. In this work, we study the dynamics in the reaction-diffusion system subjected to a weak signal and a spatially periodic force. We find that the response of the system to the weak signal is enhanced largely by the spatially periodic for...

[Phys. Rev. E 91, 052901] Published Wed May 06, 2015

]]>We investigate finite-size effects at first-order quantum transitions. For this purpose we consider the one-dimensional $q$-state quantum Potts chain, in particular with $q=10$, which undergoes a first-order transition, separating the quantum disordered and ordered phases with a discontinuity in the ene...

[Phys. Rev. E 91, 052103] Published Tue May 05, 2015

]]>We study the convex hull of the set of points visited by a two-dimensional random walker of $T$ discrete time steps. Two natural observables that characterize the convex hull in two dimensions are its perimeter $L$ and area $A$. While the mean perimeter $\langle L\rangle $ and the mean area $\langle A\rangle $ have been studied before, ...

[Phys. Rev. E 91, 052104] Published Tue May 05, 2015

]]>Networks can exhibit an abrupt transition in the form of a spontaneous self-organization of a sizable fraction of the population into a giant component of connected members. This behavior has been demonstrated in random graphs under suppressive rules that passively or actively attempt to delay the f...

[Phys. Rev. E 91, 052105] Published Tue May 05, 2015

]]>Stationary and time-dependent solutions of a nonlinear Kramers equation, as well as its associated nonlinear Fokker-Planck equations, are investigated within the context of Tsallis nonextensive statistical mechanics. Since no general analytical time-dependent solutions are found for such a nonlinear...

[Phys. Rev. E 91, 052106] Published Tue May 05, 2015

]]>The hydrodynamic equations for a model of a confined quasi-two-dimensional gas of smooth inelastic hard spheres are derived from the Boltzmann equation for the model, using a generalization of the Chapman-Enskog method. The heat and momentum fluxes are calculated to Navier-Stokes order, and the asso...

[Phys. Rev. E 91, 052201] Published Tue May 05, 2015

]]>In this paper we study breakage rate statistics of small colloidal aggregates in nonhomogeneous anisotropic turbulence. We use pseudospectral direct numerical simulation of turbulent channel flow and Lagrangian tracking to follow the motion of the aggregates, modeled as sub-Kolmogorov massless parti...

[Phys. Rev. E 91, 053003] Published Tue May 05, 2015

]]>Channeling experiments were performed that demonstrate the transport of high-intensity $(>10{}^{18}W/{\mathrm{cm}}^{2})$, multikilojoule laser light through a millimeter-sized, inhomogeneous ($\sim 300\text{\u2212}\mu \mathrm{m}$ density scale length) laser-produced plasma up to overcritical density, which is an important step forward for the fas...

[Phys. Rev. E 91, 051101] Published Mon May 04, 2015

]]>Covariance of physical quantities in fluid-turbulence theory and their governing equations under generalized coordinate transformation is discussed. It is shown that the velocity fluctuation and its governing law have a covariance under far wider group of coordinate transformation than that of conve...

[Phys. Rev. E 91, 053001] Published Mon May 04, 2015

]]>We analyze the dynamics of small particles vertically confined, by means of a linear restoring force, to move within a horizontal fluid slab in a three-dimensional (3D) homogeneous isotropic turbulent velocity field. The model that we introduce and study is possibly the simplest description for the ...

[Phys. Rev. E 91, 053002] Published Mon May 04, 2015

]]>We consider thermalization of a microscopic quantum system by interaction with a thermal bath. Our interest is the minimal size the bath can have while still being able to thermalize the system. Within a specific thermalization scheme, we show that a single spin 1/2 can be fully thermalized by inter...

[Phys. Rev. E 91, 052101] Published Fri May 01, 2015

]]>We present a mean-field theory for the dynamics of driven flow with exclusion in graphenelike structures, and numerically check its predictions. We treat first a specific combination of bond transmissivity rates, where mean field predicts, and numerics to a large extent confirms, that the sublattice...

[Phys. Rev. E 91, 052102] Published Fri May 01, 2015

]]>Many shear flows follow a route to turbulence that has striking similarities to bifurcation scenarios in low-dimensional dynamical systems. Among the bifurcations that appear, crisis bifurcations are important because they cause global transitions between open and closed attractors, or indicate dras...

[Phys. Rev. E 91, 041003] Published Thu Apr 30, 2015

]]>We consider a tournament among four equally strong semifinalists. The players have to decide how much stamina to use in the semifinals, provided that the rest is available in the final and the third-place playoff. We investigate optimal strategies for allocating stamina to the successive matches whe...

[Phys. Rev. E 91, 042144] Published Thu Apr 30, 2015

]]>In this paper we present properties of an external colored cross-correlated noise-driven Brownian system which is coupled to a thermal bath. Multiplicative cross-correlated noises can stabilize the transition state. Thus by monitoring the interference between the noises one can understand the mechan...

[Phys. Rev. E 91, 042145] Published Thu Apr 30, 2015

]]>The electrostatic interaction in ionic fluids is well known to give rise to a characteristic phase behavior and structure. Sometimes its long range is proposed to single out the electrostatic potential over other interactions with shorter ranges. Here the importance of the range for the phase behavi...

[Phys. Rev. E 91, 042146] Published Thu Apr 30, 2015

]]>The stability of sand castles is determined by the structure of wet granulates. Experimental data on the size distribution of fluid pockets are ambiguous with regard to their origin. We discovered that contact-angle hysteresis plays a fundamental role in the equilibrium distribution of bridge volume...

[Phys. Rev. E 91, 042204] Published Thu Apr 30, 2015

]]>Using a granular-mechanics code, we study the impact of a highly porous granular body on a hard wall. The projectile consists of monodisperse adhesive micrometer-sized silica grains. For the impact velocities studied, $v<0.5\phantom{\rule{0.28em}{0ex}}\mathrm{m}/\mathrm{s}$, the sample does not fragment, but is compacted. We find that the comp...

[Phys. Rev. E 91, 042205] Published Thu Apr 30, 2015

]]>We used speckle visibility spectroscopy to measure the time-resolved dynamcis of avalanching down the inclined surface of a granular material in a half-full rotating drum operating in the slumping regime. The distribution of the avalanche period, ${t}_{d}$, rest time between them, ${t}_{r}$, and peak particle vel...

[Phys. Rev. E 91, 042206] Published Thu Apr 30, 2015

]]>We present here a detailed numerical study of the dynamical behavior of “soft” uncompressed grains in a granular chain where the grains interact via the intrinsically nonlinear Hertz force. It is well known that such a chain supports the formation of solitary waves (SWs). Here, however, the system r...

[Phys. Rev. E 91, 042207] Published Thu Apr 30, 2015

]]>Magnetic fluids based on manganese ferrite nanoparticles were studied from the structural point of view through small angle x-rays scattering (SAXS) and from the magnetic point of view through zero-field cooling and field cooling (ZFC-FC) and ac susceptibility measurements (MS). Three different coll...

[Phys. Rev. E 91, 042317] Published Thu Apr 30, 2015

]]>The response of shear stress to a weak ac electric field as a probe is measured in a nematic liquid crystal under shear flow and dc electric fields. Two states with different responses are clearly observed when the dc electric field is changed at a constant shear rate: the flow aligning and non–flow...

[Phys. Rev. E 91, 042508] Published Thu Apr 30, 2015

]]>Density of photonic states $\rho \left(\omega \right)$, group ${v}_{g}$, and phase ${v}_{\mathrm{ph}}$ velocity of light, and the dispersion relation between wave vector $k$, and frequency $\omega \left(k\right)$ were determined in a cholesteric photonic crystal. A highly sensitive method (measurement of rotation of the plane of polarization of light) was used to d...

[Phys. Rev. E 91, 042509] Published Thu Apr 30, 2015

]]>We develop a formalism for the dynamics of a flexible branched polymer with arbitrary topology in the presence of random flows. This is achieved by employing the generalized Gaussian structure (GGS) approach and the Matheron–de Marsily model for the random layered flow. The expression for the averag...

[Phys. Rev. E 91, 042602] Published Thu Apr 30, 2015

]]>It is well known that a variety of cardiac arrhythmias are initiated by a focal excitation in heart tissue. At the single cell level these currents are typically induced by intracellular processes such as spontaneous calcium release (SCR). However, it is not understood how the size and morphology of...

[Phys. Rev. E 91, 042719] Published Thu Apr 30, 2015

]]>Animal cells can sense chemical gradients without moving and are faced with the challenge of migrating towards a target despite noisy information on the target position. Here we discuss optimal search strategies for a chaser that moves by switching between two phases of motion (“run” and “tumble”), ...

[Phys. Rev. E 91, 042720] Published Thu Apr 30, 2015

]]>This paper uses the reliability polynomial, introduced by Moore and Shannon in 1956, to analyze the effect of network structure on diffusive dynamics such as the spread of infectious disease. We exhibit a representation for the reliability polynomial in terms of what we call *structural motifs* that i...

[Phys. Rev. E 91, 042814] Published Thu Apr 30, 2015

]]>We introduce a method to extract main-stream structures for a given complex network flow by trimming less effective links. As the resulting main streams generally have an almost loopless treelike structure, we can define the stream basin size for each node, which characterizes the importance of the ...

[Phys. Rev. E 91, 042815] Published Thu Apr 30, 2015

]]>The classical problem of a semiconductor laser subject to polarized injection is revisited. From the laser rate equations for the transverse electric (TE) and transverse magnetic (TM) modes, we first determine the steady states. We then investigate their linear stability properties and derive analyt...

[Phys. Rev. E 91, 042918] Published Thu Apr 30, 2015

]]>We investigate time irreversibility from the point of view of a single particle in Burgers turbulence. Inspired by the recent work for incompressible flows [Xu *et al.*, Proc. Natl. Acad. Sci. USA **111**, 7558 (2014)], we analyze the evolution of the kinetic energy for fluid markers and use the fluctuat...

[Phys. Rev. E 91, 043022] Published Thu Apr 30, 2015

]]>We use molecular dynamics simulations to test integral equation theory predictions for the structure of fluids of spherical particles with eight different piecewise-constant pair-interaction forms comprising a hard core and a combination of two shoulders and/or wells. Since model pair potentials lik...

[Phys. Rev. E 91, 043307] Published Thu Apr 30, 2015

]]>We consider developed turbulence in the two-dimensional Gross-Pitaevskii model, which describes wide classes of phenomena from atomic and optical physics to condensed matter, fluids, and plasma. The well-known difficulty of the problem is that the hypothetical local spectra of both inverse and direc...

[Phys. Rev. E 91, 041201] Published Wed Apr 29, 2015

]]>We develop the stochastic approach to thermodynamics based on stochastic dynamics, which can be discrete (master equation) and continuous (Fokker-Planck equation), and on two assumptions concerning entropy. The first is the definition of entropy itself and the second the definition of entropy produc...

[Phys. Rev. E 91, 042140] Published Wed Apr 29, 2015

]]>We present an analysis of the work performed on a system of interest that is kept thermally isolated during the switching of a control parameter. We show that there exists, for a certain class of systems, a finite-time family of switching protocols for which the work is equal to the quasistatic valu...

[Phys. Rev. E 91, 042141] Published Wed Apr 29, 2015

]]>In this work we investigate the generic properties of a stochastic linear model in the regime of high dimensionality. We consider in particular the vector autoregressive (VAR) model and the multivariate Hawkes process. We analyze both deterministic and random versions of these models, showing the ex...

[Phys. Rev. E 91, 042142] Published Wed Apr 29, 2015

]]>Brownian motion, the classical diffusive process, maximizes the Boltzmann-Gibbs entropy. The Tsallis $q$ entropy, which is nonadditive, was developed as an alternative to the classical entropy for systems which are nonergodic. A generalization of Brownian motion is provided that maximizes the Tsallis ...

[Phys. Rev. E 91, 042143] Published Wed Apr 29, 2015

]]>Experimentally observed electrical breakdown voltages $\left({U}_{\mathrm{B}}\right)$ in high-pressure gases and supercritical fluids deviate from classical theories for low-pressure gas discharges, and the underlying breakdown mechanisms for the high-density fluids making the ${U}_{\mathrm{B}}$ differ from those in the classical discharges ...

[Phys. Rev. E 91, 042316] Published Wed Apr 29, 2015

]]>We obtain an explicit solution for the island-size distribution described by the rate equations for irreversible growth with the simplified capture rates of the form ${\sigma}_{s}\left(\mathrm{\Theta}\right)\propto {\mathrm{\Theta}}^{p}\left(a+s-1\right)$ for all $s\ge 1$, where $s$ is the size and $\mathrm{\Theta}$ is the time-dependent coverage. The intrinsic property of this solution is its ...

[Phys. Rev. E 91, 042408] Published Wed Apr 29, 2015

]]>Ionizing radiation induces a variety of DNA damages including single-strand breaks (SSBs), double-strand breaks (DSBs), abasic sites, modified sugars, and bases. Most theoretical and experimental studies have been focused on DNA strand scissions, in particular production of DNA double-strand breaks....

[Phys. Rev. E 91, 042718] Published Wed Apr 29, 2015

]]>Randomization of binary matrices has become one of the most important quantitative tools in modern computational biology. The equivalent problem of generating random directed networks with fixed degree sequences has also attracted a lot of attention. However, it is very challenging to generate truly...

[Phys. Rev. E 91, 042812] Published Wed Apr 29, 2015

]]>Power lines, roadways, pipelines, and other physical infrastructure are critical to modern society. These structures may be viewed as spatial networks where geographic distances play a role in the functionality and construction cost of links. Traditionally, studies of network robustness have primari...

[Phys. Rev. E 91, 042813] Published Wed Apr 29, 2015

]]>In this paper, we investigate the motion of a set of charged particles acted upon by a growing electrostatic wave in the limit when the initial wave amplitude is vanishingly small and when all the particles have the same initial action, ${I}_{0}$. We show, both theoretically and numerically, that when all ...

[Phys. Rev. E 91, 042915] Published Wed Apr 29, 2015

]]>A quantitative comparison of various classes of oscillators (integrate-and-fire, Winfree, and Kuramoto-Daido type) is performed in the weak-coupling limit for a fully connected network of identical units. An almost perfect agreement is found, with only tiny differences among the models. We also show...

[Phys. Rev. E 91, 042916] Published Wed Apr 29, 2015

]]>We report on structures in a scale-dependent Lyapunov exponent of an experimental chaotic map that arise due to discontinuities in the map. The chaos is realized in an autonomous Boolean network, which is constructed using asynchronous logic gates to form a map operator that outputs an unclocked pul...

[Phys. Rev. E 91, 042917] Published Wed Apr 29, 2015

]]>In this paper, we study the clustering of inertial particles using a periodic kinematic simulation. The systematic Lagrangian tracking of particles makes it possible to identify the particles' clustering patterns for different values of particle inertia and drift velocity. The different cases are ch...

[Phys. Rev. E 91, 043021] Published Wed Apr 29, 2015

]]>We consider the rotation of small neutrally buoyant axisymmetric particles in a viscous steady shear flow. When inertial effects are negligible the problem exhibits infinitely many periodic solutions, the “Jeffery orbits.” We compute how inertial effects lift their degeneracy by perturbatively solvi...

[Phys. Rev. E 91, 041002] Published Tue Apr 28, 2015

]]>We explain how centrosymmetry, together with a dominant doublet of energy eigenstates in the local density of states, can guarantee interference-assisted, strongly enhanced, strictly coherent quantum excitation transport between two predefined sites of a random network of two-level systems. Starting...

[Phys. Rev. E 91, 042137] Published Tue Apr 28, 2015

]]>By reformulating the steepest-entropy-ascent (SEA) dynamical model for nonequilibrium thermodynamics in the mathematical language of differential geometry, we compare it with the primitive formulation of the general equation for the nonequilibrium reversible-irreversible coupling (GENERIC) model and...

[Phys. Rev. E 91, 042138] Published Tue Apr 28, 2015

]]>Ehrenfest's urn model is modified by introducing nonlinear terms in the associated transition probabilities. It is shown that these modifications lead, in the continuous limit, to a Fokker-Planck equation characterized by two competing diffusion terms, namely, the usual linear one and a nonlinear di...

[Phys. Rev. E 91, 042139] Published Tue Apr 28, 2015

]]>We study chemotaxis of a single *E. coli* bacterium in a medium where the nutrient chemical is also undergoing diffusion and its concentration has the form of a Gaussian whose width increases with time. We measure the average first passage time of the bacterium at a region of high nutrient concentrati...

[Phys. Rev. E 91, 042714] Published Tue Apr 28, 2015

]]>Entry of virions into the host cells is either endocytotic or fusogenic. In both cases, it occurs via reversible formation of numerous relatively weak bonds resulting in wrapping of a virion by the host membrane with subsequent membrane rupture or scission. The corresponding kinetic models are custo...

[Phys. Rev. E 91, 042715] Published Tue Apr 28, 2015

]]>Structural relaxations in humid silk fibers exposed to tensile stress have been reported to take place on a very wide range of time scales from a few milliseconds to several hours. The time-dependence of the measured tensile force following a quasi-instantaneously applied external strain on the fibe...

[Phys. Rev. E 91, 042716] Published Tue Apr 28, 2015

]]>While correlated activity is observed ubiquitously in the brain, its role in neural coding has remained controversial. Recent experimental results have demonstrated that correlated but not single-neuron activity can encode the detailed time course of the instantaneous amplitude (i.e., envelope) of a...

[Phys. Rev. E 91, 042717] Published Tue Apr 28, 2015

]]>Epidemic outbreaks of new pathogens, or known pathogens in new populations, cause a great deal of fear because they are hard to predict. For theoretical models of disease spreading, on the other hand, quantities characterizing the outbreak converge to deterministic functions of time. Our goal in thi...

[Phys. Rev. E 91, 042811] Published Tue Apr 28, 2015

]]>In turbulent scalar mixing, starting from random initial conditions, the root-mean-square advection term rapidly drops as the flow and the scalar field organize. We show first analytically, for the simplified case of a blob in shear flow with a finite correlation time, how the advection term is redu...

[Phys. Rev. E 91, 043020] Published Tue Apr 28, 2015

]]>By means of a simple theoretical model and numerical simulations, we demonstrate the presence of persistent energy currents in a lattice of classical nonlinear oscillators with uniform temperature and chemical potential. In analogy with the well-known Josephson effect, the currents are proportional ...

[Phys. Rev. E 91, 040102] Published Mon Apr 27, 2015

]]>We study the leaf-to-leaf distances on one-dimensionally ordered, full and complete $m$-ary tree graphs using a recursive approach. In our formulation, unlike in traditional graph theory approaches, leaves are ordered along a line emulating a one-dimensional lattice. We find explicit analytical formul...

[Phys. Rev. E 91, 042133] Published Mon Apr 27, 2015

]]>The second virial coefficient, ${B}_{2}$ is computed of linear rigid rods composed of $m$ equally spaced sites interacting with sites on other rods via the hard-sphere or Weeks-Chandler-Andersen (WCA) pair potentials. The dependence of ${B}_{2}$ on a wide range of separation distance between the sites $L$ and $m$ for b...

[Phys. Rev. E 91, 042134] Published Mon Apr 27, 2015

]]>We study the reversible crossover between stable and bistable phases of an overdamped Brownian bead inside an optical piston. The interaction potentials are solved developing a method based on Kramers's theory that exploits the statistical properties of the stochastic motion of the bead. We evaluate...

[Phys. Rev. E 91, 042135] Published Mon Apr 27, 2015

]]>Random geometric graphs (RGGs) can be formalized as hidden-variables models where the hidden variables are the coordinates of the nodes. Here we develop a general approach to extract the typical configurations of a generic hidden-variables model and apply the resulting equations to RGGs. For any RGG...

[Phys. Rev. E 91, 042136] Published Mon Apr 27, 2015

]]>The disordered packings of tetrahedra often show no obvious macroscopic orientational or positional order for a wide range of packing densities, and it has been found that the local order in particle clusters is the main order form of tetrahedron packings. Therefore, a cluster analysis is carried ou...

[Phys. Rev. E 91, 042203] Published Mon Apr 27, 2015

]]>The random Lorentz gas (RLG) is a minimal model for transport in heterogeneous media. Upon increasing the obstacle density, it exhibits a growing subdiffusive transport regime and then a dynamical arrest. Here, we study the dimensional dependence of the dynamical arrest, which can be mapped onto the...

[Phys. Rev. E 91, 042313] Published Mon Apr 27, 2015

]]>Recently, rheological hysteresis has been studied systematically in a wide range of complex fluids combining global rheology and time-resolved velocimetry. In this paper we present an analysis of the roles of the three most fundamental mechanisms in simple-yield-stress fluids: structure dynamics, vi...

[Phys. Rev. E 91, 042314] Published Mon Apr 27, 2015

]]>The solvation of hard spherocylindrical solutes is analyzed within the context of scaled-particle theory, which takes the view that the free energy of solvating an empty cavitylike solute is equal to the pressure-volume work required to inflate a solute from nothing to the desired size and shape wit...

[Phys. Rev. E 91, 042315] Published Mon Apr 27, 2015

]]>Direct observations of the surface and shape of model nanocolloidal gels associated with measurements of the spatial distribution of water content during drying show that air starts to significantly penetrate the sample when the material stops shrinking. We show that whether the material fractures o...

[Phys. Rev. E 91, 042407] Published Mon Apr 27, 2015

]]>Spindle-shaped nematic droplets (tactoids) form in solutions of rod-like molecules at the onset of the liquid crystalline phase. Their unique shape and internal structure result from the interplay of the elastic deformation of the nematic and anisotropic surface forces. The balance of these forces d...

[Phys. Rev. E 91, 042507] Published Mon Apr 27, 2015

]]>The influence of networks topology on collective properties of dynamical systems defined upon it is studied in the thermodynamic limit. A network model construction scheme is proposed where the number of links and the average eccentricity are controlled. This is done by rewiring links of a regular o...

[Phys. Rev. E 91, 042809] Published Mon Apr 27, 2015

]]>Social exclusion, keeping free riders from benefit sharing, plays an important role in sustaining cooperation in our world. Here we propose two different exclusion regimes, namely, peer exclusion and pool exclusion, to investigate the evolution of social exclusion in finite populations. In the peer ...

[Phys. Rev. E 91, 042810] Published Mon Apr 27, 2015

]]>The net steady state flow pattern of a distorting sphere is studied in the framework of the bilinear theory of swimming at low Reynolds number. It is argued that the starting point of a theory of interacting active particles should be based on such a calculation, since any arbitrarily chosen steady ...

[Phys. Rev. E 91, 043018] Published Mon Apr 27, 2015

]]>One of the intriguing questions in fluid dynamics is on the interrelation between dynamic singularities in the solutions of fluid dynamic equations – unboundedness of the velocity field in an appropriate norm – and the geometric ones – divergence of curvature at fluid interfaces. The present work fo...

[Phys. Rev. E 91, 043019] Published Mon Apr 27, 2015

]]>A theory for nonlinear excitations in quantum plasmas is presented for narrow-gap semiconductors by considering the combined effects of quantum and pseudorelativity. The system is governed by a coupled Klein-Gordon equation for the collective wave functions of the conduction electrons and Poisson's ...

[Phys. Rev. E 91, 043108] Published Mon Apr 27, 2015

]]>To probe both the hydrodynamic nonequilibrium (HNE) and thermodynamic nonequilibrium (TNE) in the combustion process, a two-dimensional multiple-relaxation-time (MRT) version of lattice Boltzmann kinetic model (LBKM) for combustion phenomena is presented. The chemical energy released in the progress...

[Phys. Rev. E 91, 043306] Published Mon Apr 27, 2015

]]>[Phys. Rev. E 91, 049902] Published Mon Apr 27, 2015

]]>The stresslet provides a simple model of the flow created by a small, freely swimming and neutrally buoyant aquatic organism and shows that the far field fluid disturbance created by such an organism in general decays as one over distance squared. Here we discuss a quieter swimming mode that elimina...

[Phys. Rev. E 91, 042712] Published Fri Apr 24, 2015

]]>We consider a model of a stepping molecular motor consisting of two connected heads. Directional motion of the stepper takes place along a one-dimensional track. Each head is subject to a periodic potential without spatial reflection symmetry. When the potential for one head is switched on, it is sw...

[Phys. Rev. E 91, 042713] Published Fri Apr 24, 2015

]]>Evolutionary game theory is crucial to capturing the characteristic interaction patterns among selfish individuals. In a population of coordination games of two strategies, one of the central problems is to determine the fixation probability that the system reaches a state of networkwide of only one...

[Phys. Rev. E 91, 042807] Published Fri Apr 24, 2015

]]>The eigenvalue spectrum of the matrix of directed weights defining a neural network model is informative of several stability and dynamical properties of network activity. Existing results for eigenspectra of sparse asymmetric random matrices neglect spatial or other constraints in determining entri...

[Phys. Rev. E 91, 042808] Published Fri Apr 24, 2015

]]>Extreme intensity pulses sharing statistical properties similar to rogue waves have been recently observed in a laser diode with phase-conjugate feedback [A. Karsaklian Dal Bosco, D. Wolfersberger, and M. Sciamanna, Opt. Lett. **38**, 703 (2013)], but remain unexplained. We demonstrate here that a rate ...

[Phys. Rev. E 91, 042914] Published Fri Apr 24, 2015

]]>We report the inherently three-dimensional linear instabilities of a propulsive wake, produced by a flapping foil, mimicking the caudal fin of a fish or the wing of a flying animal. For the base flow, three sequential wake patterns appear as we increase the flapping amplitude: Bénard-von Kármán (BvK...

[Phys. Rev. E 91, 043017] Published Fri Apr 24, 2015

]]>In Sec. II of the named paper, the authors study the planar model on a regular two-dimensional (square or triangular) lattice and find evidence of an ordering transition at finite temperatures in both cases. It is shown that their findings do not agree with, and appear to ignore, a number of mathema...

[Phys. Rev. E 91, 046501] Published Fri Apr 24, 2015

]]>In Romano's Comment [Phys. Rev. E **91**, 046501 (2015)] on Sec. II of our paper [Phys. Rev. E **90**, 022502 (2014)], the author suggests that our findings concerning the nature of the ordering transition of our modified Lebwohl-Lasher model with two-dimensional planar rotators on a planar lattice are inco...

[Phys. Rev. E 91, 046502] Published Fri Apr 24, 2015

]]>Granger causality has long been a prominent method for inferring causal interactions between stochastic variables for a broad range of complex physical systems. However, it has been recognized that a moving average (MA) component in the data presents a serious confound to Granger causal analysis, as...

[Phys. Rev. E 91, 040101] Published Thu Apr 23, 2015

]]>We generalize Morita's works [J. Phys. A **7**, 289 (1974); J. Phys. A **7**, 1613 (1974)] on ground states of Ising chains, for chains with a periodic structure and different spins, to any interaction order. The main assumption is translational invariance. The length of the irreducible blocks is a multiple...

[Phys. Rev. E 91, 042128] Published Thu Apr 23, 2015

]]>In this work we analyze the simultaneous emergence of diffusive energy transport and local thermalization in a nonequilibrium one-dimensional quantum system, as a result of integrability breaking. Specifically, we discuss the local properties of the steady state induced by thermal boundary driving i...

[Phys. Rev. E 91, 042129] Published Thu Apr 23, 2015

]]>In the usual Achlioptas processes the smallest clusters of a few randomly chosen ones are selected to merge together at each step. The resulting aggregation process leads to the delayed birth of a giant cluster and the so-called explosive percolation transition showing a set of anomalous features. W...

[Phys. Rev. E 91, 042130] Published Thu Apr 23, 2015

]]>We study the one-dimensional branching Brownian motion starting at the origin and investigate the correlation between the rightmost $\left({X}_{max}\ge 0\right)$ and leftmost $\left({X}_{min}\le 0\right)$ visited sites up to time $t$. At each time step the existing particles in the system either diffuse (with diffusion constant $D$), die (with ...

[Phys. Rev. E 91, 042131] Published Thu Apr 23, 2015

]]>We investigate the phase diagram of $S=1$ quantum spin systems with SU(2)-invariant interactions, at low temperatures and in three spatial dimensions. Symmetry breaking and the nature of extremal states can be studied using random loop representations. The latter confirm the occurrence of ferro- and a...

[Phys. Rev. E 91, 042132] Published Thu Apr 23, 2015

]]>Grains inside a vertically vibrated box undergo a transition from a density-inverted and horizontally homogeneous state, referred to as the granular Leidenfrost state, to a buoyancy-driven convective state. We perform a simulational study of the precursors of such a transition and quantify their dyn...

[Phys. Rev. E 91, 042202] Published Thu Apr 23, 2015

]]>We present experimental results on the propagation of an ultrasonic wave (40 kHz) in liquid foams, as a function of the foam physical and chemical parameters. We have first implemented an original setup, using transducers in a transmission configuration. The foam coarsening was used to vary the bubb...

[Phys. Rev. E 91, 042311] Published Thu Apr 23, 2015

]]>Fluids with competing short-range attractions and long-range repulsions mimic dispersions of charge-stabilized colloids that can display equilibrium structures with intermediate-range order (IRO), including particle clusters. Using simulations and analytical theory, we demonstrate how to detect clus...

[Phys. Rev. E 91, 042312] Published Thu Apr 23, 2015

]]>This paper introduces a unifying theory for describing complex behavior for porous materials. The key ingredients are the stored energy in solid-fluid interaction as well as the solid-solid and fluid-fluid interactions. A finite element formulation is employed which naturally accounts for the pore-p...

[Phys. Rev. E 91, 042406] Published Thu Apr 23, 2015

]]>The enhancement of tunneling probability in the nearly integrable system is closely examined, focusing on tunneling splittings plotted as a function of the inverse of the Planck's constant. On the basis of the analysis using the absorber which efficiently suppresses the coupling, creating spikes in ...

[Phys. Rev. E 91, 042913] Published Thu Apr 23, 2015

]]>We present a spatiotemporal analysis of a statistically stationary rotating-turbulence experiment, aiming to extract a signature of inertial waves and to determine the scales and frequencies at which they can be detected. The analysis uses two-point spatial correlations of the temporal Fourier trans...

[Phys. Rev. E 91, 043016] Published Thu Apr 23, 2015

]]>The lattice Boltzmann method (LBM) has been widely used to simulate microgaseous flows in recent years. However, it is still a challenging task for LBM to model that kind of microscale flow involving complex geometries, owing to the use of uniform Cartesian lattices in space. In this work, a boundar...

[Phys. Rev. E 91, 043305] Published Thu Apr 23, 2015

]]>For a globally coupled network of semiconductor lasers with delayed optical feedback, we demonstrate the existence of chimera states. The domains of coherence and incoherence that are typical for chimera states are found to exist for the amplitude, phase, and inversion of the coupled lasers. These c...

[Phys. Rev. E 91, 040901] Published Wed Apr 22, 2015

]]>Scale-free surfaces, such as cones, remain unchanged under a simultaneous expansion of all coordinates by the same factor. Probability density of a particle diffusing near such absorbing surface at large time approaches a simple form that incorporates power-law dependencies on time and distance from...

[Phys. Rev. E 91, 042126] Published Wed Apr 22, 2015

]]>An analysis of the efficiency and coefficient of performance (COP) for general heat engines and refrigerators with nonisothermal processes is conducted under the trade-off criterion. The specific heat of the working medium has significant impacts on the optimal configurations of heat devices. For cy...

[Phys. Rev. E 91, 042127] Published Wed Apr 22, 2015

]]>While monolayer area fraction versus time $\left({A}_{n}\text{\u2212}t\right)$ curves obtained from surface pressure–area $\left(\pi \text{\u2212}A\right)$ isotherms for desorption-dominated (DD) processes in Langmuir monolayers of fatty acids represent continuous loss, those from Brewster angle microscopy (BAM) also show a two-dimensional (2D) coalescence...

[Phys. Rev. E 91, 042405] Published Wed Apr 22, 2015

]]>In the last few decades many investigations have been devoted to theoretical models in new areas concerning description of different biological, sociological, and historical processes. In the present paper we suggest a model of the Nazi Germany invasion of Poland, France, and the USSR based on kinet...

[Phys. Rev. E 91, 042806] Published Wed Apr 22, 2015

]]>In this paper we present a unified shell model for stably stratified and convective turbulence. Numerical simulation of this model for stably stratified flow shows Bolgiano-Obukhbov scaling in which the kinetic energy spectrum varies as ${k}^{-11/5}$. The shell model of convective turbulence yields Kolmogo...

[Phys. Rev. E 91, 043014] Published Wed Apr 22, 2015

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