Stochastic systems characterized by a random driving in a form of the general stable noise are considered. The particle experiences long rests due to the traps the density of which is position dependent and obeys a power-law form attributed to the underlying self-similar structure. Both the one- and…

[Phys. Rev. E 93, 062142] Published Tue Jun 28, 2016

]]>A network of neurons in the central nervous system collectively represents information by its spiking activity states. Typically observed states, i.e., code words, occupy only a limited portion of the state space due to constraints imposed by network interactions. Geometrical organization of code wo…

[Phys. Rev. E 93, 062416] Published Tue Jun 28, 2016

]]>Methylation of mammalian DNA occurs primarily at CG dinucleotides. These CpG sites are located nonrandomly in the genome, tending to occur within high density clusters of CpGs (islands) or within large regions of low CpG density. Cluster methylation tends to be bimodal, being dominantly unmethylated…

[Phys. Rev. E 93, 062417] Published Tue Jun 28, 2016

]]>We analyze ultrasensitivity in a model of *Vibrio harveyi* quorum sensing. We consider a feedforward model consisting of two biochemical networks per cell. The first represents the interchange of a signaling molecule (autoinducer) between the cell cytoplasm and an extracellular domain and the binding …

[Phys. Rev. E 93, 062418] Published Tue Jun 28, 2016

]]>Magnetoactive elastomers (MAEs) are composite materials comprised of micrometer-sized ferromagnetic particles in a nonmagnetic elastomer matrix. A single-particle mechanism of magnetostriction in MAEs, assuming the rotation of a soft magnetic, mechanically rigid particle with uniaxial magnetic aniso…

[Phys. Rev. E 93, 062503] Published Tue Jun 28, 2016

]]>We propose a theoretical explanation for the long-standing problem of the anomalous critical behavior of the heat capacity near the smectic-$A$–hexatic phase transition. Experiments find a large specific heat critical exponent $\alpha =0.5\u20130.7$, which is inconsistent with a small negative value $\alpha \approx -0.01$ expect…

[Phys. Rev. E 93, 062707] Published Tue Jun 28, 2016

]]>The linear hydrodynamic stability of a model for confined quasi-two-dimensional granular gases is analyzed. The system exhibits homogeneous hydrodynamics, i.e., there are macroscopic evolution equations for homogeneous states. The stability analysis is carried out around all these states and not onl…

[Phys. Rev. E 93, 062907] Published Tue Jun 28, 2016

]]>A mesoscopic model of amorphous plasticity is discussed in the context of depinning models. After embedding in a $d+1$-dimensional space, where the accumulated plastic strain lives along the additional dimension, the gradual plastic deformation of amorphous media can be regarded as the motion of an el…

[Phys. Rev. E 93, 063005] Published Tue Jun 28, 2016

]]>We consider thermal transport in low-dimensional disordered harmonic networks of coupled masses. Utilizing known results regarding Anderson localization, we derive the actual dependence of the thermal conductance $G$ on the length $L$ of the sample. This is required by nanotechnology implementations bec…

[Phys. Rev. E 93, 062138] Published Mon Jun 27, 2016

]]>Here we measure the hindered diffusion of an optically confined nanoparticle in the direction normal to a surface, and we use this to determine the particle-surface interaction profile in terms of the absolute height. These studies are performed using the evanescent field of an optically excited sin…

[Phys. Rev. E 93, 062139] Published Mon Jun 27, 2016

]]>It is always some constraint that yields any nontrivial structure from statistical averages. As epitomized by the Boltzmann distribution, the energy conservation is often the principal constraint acting on mechanical systems. Here we investigate a different type: the topological constraint imposed o…

[Phys. Rev. E 93, 062140] Published Mon Jun 27, 2016

]]>We present an analytical and numerical study of the parking lot model (PLM) of granular relaxation and make a connection to the aging dynamics of dense colloids. As we argue, the PLM is a Kinetically Constrained Model which features astronomically large equilibration times and displays a characteris…

[Phys. Rev. E 93, 062141] Published Mon Jun 27, 2016

]]>We propose a nanostructure control method which uses slowly ramping parameters. We demonstrate the dynamics of this method in both a nonlinear classical system and a quantum system. When a quantum mechanical two-level atom (quantum dot) is irradiated by an electric field with a slowly increasing fre…

[Phys. Rev. E 93, 062225] Published Mon Jun 27, 2016

]]>A central issue in the science of complex systems is the quantitative characterization of complexity. In the present work we address this issue by resorting to information geometry. Actually we propose a constructive way to associate with a—in principle, any—network a differentiable object (a Rieman…

[Phys. Rev. E 93, 062317] Published Mon Jun 27, 2016

]]>We present a theoretical framework for the linear and nonlinear viscoelastic properties of reversibly crosslinked networks of semiflexible polymers. In contrast to affine models where network strain couples to the polymer end-to-end distance, in our model strain rather serves to locally distort the …

[Phys. Rev. E 93, 062502] Published Mon Jun 27, 2016

]]>We study glassy dynamics using a simulation of three soft Brownian particles confined to a two-dimensional circular region. If the circular region is large, the disks freely rearrange, but rearrangements are rarer for smaller system sizes. We directly measure a one-dimensional free-energy landscape …

[Phys. Rev. E 93, 062613] Published Mon Jun 27, 2016

]]>We report optical birefringence data for a series of mixtures of the liquid crystals octylcyanobiphenyl (8CB) and decylcyanobiphenyl (10CB). Nematic order parameter $S$ data in the nematic and smectic $A$ phases have been derived from phase angle changes obtained in temperature scans with a rotating ana…

[Phys. Rev. E 93, 062706] Published Mon Jun 27, 2016

]]>A generalized lattice-gas model that takes into account the directional character of pair interactions between the lattice sites is proposed. It is demonstrated that the proposed model can be successfully used to deeply understand the self-assembly process in adsorption monolayers of functional orga…

[Phys. Rev. E 93, 062804] Published Mon Jun 27, 2016

]]>While at small collision velocities collisions of nanoparticles (NPs) are elastic, they become plastic at higher velocities. We study the elastic-plastic threshold and the onset of plasticity using molecular dynamics simulation for a Lennard-Jones material. The reasons behind the ${R}^{-2/3}$ increase of t…

[Phys. Rev. E 93, 063004] Published Mon Jun 27, 2016

]]>We examine the stability of a vertical liquid bridge between two vertically vibrating, coaxial disks. Assuming that the vibration amplitude and period are much smaller than the mean distance between the disks and the global timescale, respectively, we employ the method of multiple scales to derive a…

[Phys. Rev. E 93, 063118] Published Mon Jun 27, 2016

]]>The influence of an external homogeneous magnetic field on the quasilocalization of the particles—characterized quantitatively by cage correlation functions—in strongly coupled three-dimensional Yukawa systems is investigated via molecular dynamics computer simulations over a wide domain of the syst…

[Phys. Rev. E 93, 063209] Published Mon Jun 27, 2016

]]>Backward Raman amplification is limited by relativistic nonlinear dephasing resulting in saturation of the leading spike of the amplified pulse. Pump detuning is employed to mitigate the relativistic phase mismatch and to overcome the associated saturation. The amplified pulse can then be reshaped i…

[Phys. Rev. E 93, 063210] Published Mon Jun 27, 2016

]]>We investigate energy transfer across scales in three-dimensional compressible magnetohydrodynamic (MHD) turbulence, a model often used to study space and astrophysical plasmas. Analysis shows that kinetic and magnetic energies cascade conservatively from large to small scales in cases with varying …

[Phys. Rev. E 93, 061102(R)] Published Fri Jun 24, 2016

]]>We have used multiframe picosecond optical interferometry to make direct measurements of the hole boring velocity, ${v}_{\mathrm{HB}}$, of the density cavity pushed forward by a train of $\mathrm{C}{\mathrm{O}}_{2}$ laser pulses in a near critical density helium plasma. As the pulse train intensity rises, the increasing radiation pressure …

[Phys. Rev. E 93, 061202(R)] Published Fri Jun 24, 2016

]]>Liquid water is not only of obvious importance but also extremely intriguing, displaying many anomalies that still challenge our understanding of such an *a priori* simple system. The same is true when looking at nanoconfined water: The liquid between constituents in a cell is confined to such dimensi…

[Phys. Rev. E 93, 062137] Published Fri Jun 24, 2016

]]>An integrable model possessing inhomogeneous ground states is proposed as an effective model of nonuniform quantum condensates such as supersolids and Fulde-Ferrell-Larkin-Ovchinnikov superfluids. The model is a higher-order analog of the nonlinear Schrödinger equation. We derive an $n$-soliton soluti…

[Phys. Rev. E 93, 062224] Published Fri Jun 24, 2016

]]>The authors study theoretically the midzone of the mitotic spindle, where antiparallel microtubules overlap and help maintain bipolarity of the cell during division. They find that (a) an interplay of molecular motors and passive cross-linkers can form a stable overlap region of polar filaments, (b) a bundle of aligned polar filaments may self-organize into a spindlelike pattern, and (c) results are relatively insensitive to details of the model. The work suggests how cells could generate and control spindle midzones.

[Phys. Rev. E 93, 062415] Published Fri Jun 24, 2016

]]>Capillary forces have been measured by atomic force microscopy in the sphere-plate geometry, in a controlled humidity environment, between smooth silicon carbide and borosilicate glass spheres. The force measurements were performed as a function of the rms surface roughness ∼4–14 nm mainly due to sp…

[Phys. Rev. E 93, 062803] Published Fri Jun 24, 2016

]]>We report on the numerical and theoretical study of the subcritical bifurcation of parametrically amplified waves appearing at the interface between two immiscible incompressible fluids when the layer of the lower fluid is very shallow. As a critical control parameter is surpassed, small amplitude s…

[Phys. Rev. E 93, 063114] Published Fri Jun 24, 2016

]]>We study the challenging problem of the advection of an active, deformable, finite-size droplet by a turbulent flow via a simulation of the coupled Cahn-Hilliard-Navier-Stokes (CHNS) equations. In these equations, the droplet has a natural two-way coupling to the background fluid. We show that the p…

[Phys. Rev. E 93, 063115] Published Fri Jun 24, 2016

]]>We report measurements of the modification of turbulence far from any walls by small concentrations of long-chain polymers. We consider a range of statistical properties of the flow, including Eulerian and Lagrangian velocity structure functions, Eulerian acceleration correlation functions, and the …

[Phys. Rev. E 93, 063116] Published Fri Jun 24, 2016

]]>The frequency-dependent magnetic susceptibility of a ferrofluid is calculated under the assumption that the constituent particles undergo Brownian relaxation only. Brownian-dynamics simulations are carried out in order to test the predictions of a recent theory [A. O. Ivanov, V. S. Zverev, and S. S.…

[Phys. Rev. E 93, 063117] Published Fri Jun 24, 2016

]]>A recently introduced one-dimensional three-orbital Hubbard model displays orbital-selective Mott phases with exotic spin arrangements such as spin block states [J. Rincón *et al.*, Phys. Rev. Lett. **112**, 106405 (2014)]. In this publication we show that the constrained-path quantum Monte Carlo (CPQMC) …

[Phys. Rev. E 93, 063313] Published Fri Jun 24, 2016

]]>Phase coexistence properties as well as other thermodynamic features of fluids can be effectively determined from the grand canonical density of states (DOS). We present an extension of the $\mathrm{par}Q$ transition matrix method in combination with the efasTM method as a very fast approach for determining th…

[Phys. Rev. E 93, 063314] Published Fri Jun 24, 2016

]]>We present an analysis of conditions under which the dynamics of a frustrated Kuramoto—or Kuramoto-Sakaguchi—model on sparse networks can be tuned to enhance synchronization. Using numerical optimization techniques, linear stability, and dimensional reduction analysis, a simple tuning scheme for set…

[Phys. Rev. E 93, 062315] Published Thu Jun 23, 2016

]]>In this paper we study the dynamics of epidemic processes taking place in adaptive networks of arbitrary topology. We focus our study on the adaptive susceptible-infected-susceptible (ASIS) model, where healthy individuals are allowed to temporarily cut edges connecting them to infected nodes in ord…

[Phys. Rev. E 93, 062316] Published Thu Jun 23, 2016

]]>We study force generation by a set of parallel actin filaments growing against a nonrigid obstacle, in the presence of an external load. The filaments polymerize by either moving the whole obstacle, with a large energy cost, or by causing local distortion in its shape which costs much less energy. T…

[Phys. Rev. E 93, 062414] Published Thu Jun 23, 2016

]]>Recent analyses of wetting in the semi-infinite two-dimensional Ising model, extended to include both a surface coupling enhancement and a surface field, have shown that the wetting transition may be effectively first-order and that surprisingly the surface susceptibility develops a divergence descr…

[Phys. Rev. E 93, 062802] Published Thu Jun 23, 2016

]]>We study the problem of thermal convection in a laterally heated horizontal cylinder rotating about its axis. A cylinder of aspect ratio $\mathrm{\Gamma}=H/2R=2$ containing a small Prandtl number fluid $\left(\sigma =0.01\right)$ representative of molten metals and molten semiconductors at high temperature is considered. We focus on …

[Phys. Rev. E 93, 063113] Published Thu Jun 23, 2016

]]>The effects of an explicit temperature dependence in the exchange correlation (XC) free-energy functional upon calculated properties of matter in the warm dense regime are investigated. The comparison is between the Karasiev-Sjostrom-Dufty-Trickey (KSDT) finite-temperature local-density approximatio…

[Phys. Rev. E 93, 063207] Published Thu Jun 23, 2016

]]>We study how concentration changes ionic transport properties along isobars-isotherms for a mixture of hydrogen and silver, representative of turbulent layers relevant to inertial confinement fusion and astrophysics. Hydrogen will typically be fully ionized while silver will be only partially ionize…

[Phys. Rev. E 93, 063208] Published Thu Jun 23, 2016

]]>[Phys. Rev. E 93, 069903] Published Thu Jun 23, 2016

]]>[Phys. Rev. E 93, 069904] Published Thu Jun 23, 2016

]]>The thermodynamics of quantum systems coupled to periodically modulated heat baths and work reservoirs is developed. By identifying affinities and fluxes, the first and the second law are formulated consistently. In the linear response regime, entropy production becomes a quadratic form in the affin…

[Phys. Rev. E 93, 062134] Published Wed Jun 22, 2016

]]>We exactly calculate two-point spatial correlation functions in steady state in a broad class of conserved-mass transport processes, which are governed by chipping, diffusion, and coalescence of masses. We find that the spatial correlations are in general short-ranged and, consequently, on a large s…

[Phys. Rev. E 93, 062135] Published Wed Jun 22, 2016

]]>We propose a tensor-network algorithm for discrete-time stochastic dynamics of a homogeneous system in the thermodynamic limit. We map a $d$-dimensional nonequilibrium Markov process to a $(d+1)$-dimensional infinite tensor network by using a higher-order singular-value decomposition. As an application …

[Phys. Rev. E 93, 062136] Published Wed Jun 22, 2016

]]>We study phase locking in the Kuramoto model of coupled oscillators in the special case where the number of oscillators, $N$, is large but finite, and the oscillators' natural frequencies are evenly spaced on a given interval. In this case, stable phase-locked solutions are known to exist if and only …

[Phys. Rev. E 93, 062220] Published Wed Jun 22, 2016

]]>We extend the concepts of quantum complete synchronization and phase synchronization, which were proposed in A. Mari *et al.*, Phys. Rev. Lett. **111**, 103605 (2013), to more widespread quantum generalized synchronization. Generalized synchronization can be considered a necessary condition or a more fle…

[Phys. Rev. E 93, 062221] Published Wed Jun 22, 2016

]]>We derive the nonlinear Schrödinger (NLS) equation in chiral optical fiber with right- and left-hand nonlinear polarization. We use the similarity transformation to reduce the generalized chiral NLS equation to the higher-order integrable Hirota equation. We present the first- and second-order ratio…

[Phys. Rev. E 93, 062223] Published Wed Jun 22, 2016

]]>Among the consequences of the disordered interaction topology underlying many social, technological, and biological systems, a particularly important one is that some nodes, just because of their position in the network, may have a disproportionate effect on dynamical processes mediated by the compl…

[Phys. Rev. E 93, 062314] Published Wed Jun 22, 2016

]]>The gram-negative bacterium *Caulobacter crescentus* is a powerful model organism for studies of bacterial cell cycle regulation. Although the major regulators and their connections in *Caulobacter* have been identified, it still is a challenge to properly understand the dynamics of its circuitry which …

[Phys. Rev. E 93, 062413] Published Wed Jun 22, 2016

]]>We investigated the settling dynamics of irregularly shaped particles in a still fluid under a wide range of conditions with Reynolds numbers Re varying between 1 and 2000, sphericity $\varphi $ and circularity $c$ both greater than 0.5, and Corey shape factor (CSF) less than 1. To simulate the particle settli…

[Phys. Rev. E 93, 062612] Published Wed Jun 22, 2016

]]>The authors present a computationally efficient technique for the analysis of extraordinary transmission through both infinite and truncated periodic arrays of slots in perfect conductor screens of negligible thickness. An integral equation is obtained for the tangential electric field in the slots …

[Phys. Rev. E 93, 063312] Published Wed Jun 22, 2016

]]>We perform a theoretical study of the dynamics of the electric field excitations in a microtubule by taking into consideration the realistic cylindrical geometry, dipole-dipole interactions of the tubulin-based protein heterodimers, the radial electric field produced by the solvent, and a possible d…

[Phys. Rev. E 93, 062412] Published Tue Jun 21, 2016

]]>We report a comprehensive dielectric characterization of a liquid crystalline binary mixture composed of the symmetric mesogenic dimer CB7CB and the nonsymmetric mesogenic dimer FFO9OCB. In addition to the high-temperature nematic phase, such a binary mixture shows a twist-bend nematic phase at room…

[Phys. Rev. E 93, 062705] Published Tue Jun 21, 2016

]]>Thick granular flows are essential to many natural and industrial phenomena. Experimentally, it has been well established that the grain velocity profile is linear from the free surface to a certain depth, after which it decreases exponentially in the so-called “creep region”. In this paper we obtai…

[Phys. Rev. E 93, 062906] Published Tue Jun 21, 2016

]]>We present an approximate Bayesian computation scheme for estimating number concentrations of monodisperse diffusing nanoparticles in suspension by optical particle tracking microscopy. The method is based on the probability distribution of the time spent by a particle inside a detection region. We …

[Phys. Rev. E 93, 063311] Published Tue Jun 21, 2016

]]>Examining a nonlinear instability of sliding rate on a frictional interface of elastic bodies, we investigate whether laboratory-constrained frictional relations suggest universal scaling under even the simplest of configurations. We find blowup solutions by solving an equivalent, classical problem …

[Phys. Rev. E 93, 060202(R)] Published Mon Jun 20, 2016

]]>Models of noninteracting fermions coupled to auxiliary classical fields are relevant to the understanding of a wide variety of problems in many-body physics, e.g., the description of manganites, diluted magnetic semiconductors, or strongly interacting electrons on lattices. We present a flat-histogr…

[Phys. Rev. E 93, 061301(R)] Published Mon Jun 20, 2016

]]>We investigate the geometric structure of a nonequilibrium process and its geodesic solutions. By employing an exactly solvable model of a driven dissipative system (generalized nonautonomous Ornstein-Uhlenbeck process), we compute the time-dependent probability density functions (PDFs) and investig…

[Phys. Rev. E 93, 062127] Published Mon Jun 20, 2016

]]>Ratchets rectify the motion of randomly moving particles, which are driven by isotropic sources of energy such as thermal and chemical energy, without applying a net, time-averaged force between source and drain. This paper describes the behavior of a damped electron, modeled by a quantum Lindblad m…

[Phys. Rev. E 93, 062128] Published Mon Jun 20, 2016

]]>Recently a nonlinear Fick-Jacobs equation has been proposed for the description of transport and diffusion of particles interacting through a hard-core potential in tubes or channels of varying cross section [Suárez *et al.*, Phys. Rev. E **91**, 012135 (2015)]. Here we focus on the analysis of the curre…

[Phys. Rev. E 93, 062129] Published Mon Jun 20, 2016

]]>A two-dimensional periodic optical force field, which combines conservative dipolar forces with vortices from radiation pressure, is proposed in order to influence the diffusion properties of optically susceptible nanoparticles. The different deterministic flow patterns are identified. In the low-no…

[Phys. Rev. E 93, 062130] Published Mon Jun 20, 2016

]]>The nonlinear dielectric effect describes changes of dielectric permittivity induced by the strong electric field. This report shows the evidence for the critical-like pretransitional behavior for the liquid-solid transition in the supercooled nitrobenzene. Hallmarks of such behavior extend even abo…

[Phys. Rev. E 93, 062131] Published Mon Jun 20, 2016

]]>For quite a few systems in the continuum, such as carbon nanotube polymer composites and segregated composites, percolation electrical conductivity exponents that are much smaller than the universal value have been reported. This is unexpected in view of the classical lattice percolation theory. Her…

[Phys. Rev. E 93, 062132] Published Mon Jun 20, 2016

]]>The ranges of transmission of the mobiles in a mobile *ad hoc* network are not uniform in reality. They are affected by the temperature fluctuation in air, obstruction due to the solid objects, even the humidity difference in the environment, etc. How the varying range of transmission of the individua…

[Phys. Rev. E 93, 062133] Published Mon Jun 20, 2016

]]>We propose and examine an integrable system of nonlinear equations that generalizes the nonlinear Schrödinger equation to $2+1$ dimensions. This integrable system of equations is a promising starting point to elaborate more accurate models in nonlinear optics and molecular systems within the continuum…

[Phys. Rev. E 93, 062219] Published Mon Jun 20, 2016

]]>Rotation dynamics of eigenvectors of modular network adjacency matrices under random perturbations are presented. In the presence of $q$ communities, the number of eigenvectors corresponding to the $q$ largest eigenvalues form a “community” eigenspace and rotate together, but separately from that of the…

[Phys. Rev. E 93, 062312] Published Mon Jun 20, 2016

]]>Randomly coupled neural fields demonstrate irregular variation of firing rates, if the coupling is strong enough, as has been shown by [Phys. Rev. Lett. **61**, 259 (1988)]. We present a method for reconstruction of the coupling matrix from a time series of irregular firing rates. The approach is base…

[Phys. Rev. E 93, 062313] Published Mon Jun 20, 2016

]]>Transcription is a key process in gene expression, in which RNA polymerases produce a complementary RNA copy from a DNA template. RNA polymerization is frequently interrupted by backtracking, a process in which polymerases perform a random walk along the DNA template. Recovery of polymerases from th…

[Phys. Rev. E 93, 062411] Published Mon Jun 20, 2016

]]>Focusing on shear-stress fluctuations, we investigate numerically a simple generic model for self-assembled transient networks formed by repulsive beads reversibly bridged by ideal springs. With $\mathrm{\Delta}t$ being the sampling time and ${t}_{\u2606}\left(f\right)\sim 1/f$ the Maxwell relaxation time (set by the spring recombination fre…

[Phys. Rev. E 93, 062611] Published Mon Jun 20, 2016

]]>We study numerically the shapes of a liquid meniscus in contact with ultrahydrophobic pillar surfaces in Cassie's wetting regime, when the surface is covered with identical and periodically distributed micropillars. Using the full capillary model we obtain the advancing and the receding equilibrium …

[Phys. Rev. E 93, 062801] Published Mon Jun 20, 2016

]]>When we elastically impose a homogeneous, affine deformation on amorphous solids, they also undergo an inhomogeneous, nonaffine deformation, which can have a crucial impact on the overall elastic response. To correctly understand the elastic modulus $M$, it is therefore necessary to take into account …

[Phys. Rev. E 93, 062905] Published Mon Jun 20, 2016

]]>We demonstrate that diffusiophoretic, thermophoretic, and chemotactic phenomena in turbulence lead to clustering of particles on multifractal sets that can be described using one single framework, valid when the particle size is much smaller than the smallest length scale of turbulence ${l}_{0}$. To quanti…

[Phys. Rev. E 93, 063110] Published Mon Jun 20, 2016

]]>A new set of generalized transport equations is derived for higher-order moments which are generated in evolution equation for stress tensor and heat flux vector in 13-moment equations. The closure we employ satisfies Onsager's symmetry principle. In the derivation, we do not employ a phase density …

[Phys. Rev. E 93, 063111] Published Mon Jun 20, 2016

]]>We analyze the effect of asymmetric finite ion size in nanoconfinement in the view of osmotic pressure and electrocapillarity. When the confinement width becomes comparable with the Debye length, the overlapped electric double layer is significantly deformed by the steric effects. We derive the osmo…

[Phys. Rev. E 93, 063112] Published Mon Jun 20, 2016

]]>For a nonlinear dynamical system described by the first-order differential equation with Poisson white noise having exponentially distributed amplitudes of $\delta $ pulses, some exact results for the stationary probability density function are derived from the Kolmogorov-Feller equation using the inverse d…

[Phys. Rev. E 93, 062125] Published Fri Jun 17, 2016

]]>Analytic approximations for the radial distribution function, the structure factor, and the equation of state of hard-core fluids in fractal dimension $d\left(1\le d\le 3\right)$ are developed as heuristic interpolations from the knowledge of the exact and Percus-Yevick results for the hard-rod and hard-sphere fluids…

[Phys. Rev. E 93, 062126] Published Fri Jun 17, 2016

]]>One of the ubiquitous features of real-life turbulent flows is the existence and persistence of coherent vortices. Here we show that such coherent vortices can be extracted as clusters of Lagrangian trajectories. We carry out the clustering on a weighted graph, with the weights measuring pairwise di…

[Phys. Rev. E 93, 063107] Published Fri Jun 17, 2016

]]>We use high-speed video imaging to investigate vapor explosions during the impact of a molten Field's metal drop onto a pool of water. These explosions occur for temperatures above the Leidenfrost temperature and are observed to occur in up to three stages as the metal temperature is increased, with…

[Phys. Rev. E 93, 063108] Published Fri Jun 17, 2016

]]>We investigate the stability of self-propelled particle flocks in the Taylor-Green vortex, a steady vortical flow. We consider a model in which particles align themselves to a combination of the orientation and the acceleration of particles within a critical radius. We identify two distinct regimes:…

[Phys. Rev. E 93, 063109] Published Fri Jun 17, 2016

]]>It was recently shown [Phys. Rev. Lett. **110**, 227201 (2013)] that the critical behavior of the random-field Ising model in three dimensions is ruled by a single universality class. This conclusion was reached only after a proper taming of the large scaling corrections of the model by applying a combi…

[Phys. Rev. E 93, 063308] Published Fri Jun 17, 2016

]]>The Detrending Moving Average (DMA) algorithm has been widely used in its several variants for characterizing long-range correlations of random signals and sets (one-dimensional sequences or high-dimensional arrays) over either time or space. In this paper, mainly based on analytical arguments, the …

[Phys. Rev. E 93, 063309] Published Fri Jun 17, 2016

]]>The energy landscapes framework is applied to a configuration space generated by training the parameters of a neural network. In this study the input data consists of time series for a collection of vital signs monitored for hospital patients, and the outcomes are patient discharge or continued hosp…

[Phys. Rev. E 93, 063310] Published Fri Jun 17, 2016

]]>Utilizing the sparsity ubiquitous in real-world network connectivity, we develop a theoretical framework for efficiently reconstructing sparse feed-forward connections in a pulse-coupled nonlinear network through its output activities. Using only a small ensemble of random inputs, we solve this inve…

[Phys. Rev. E 93, 060201(R)] Published Thu Jun 16, 2016

]]>We studied angular distributions of x rays emitted in resonant recombination of highly charged iron and krypton ions, resolving dielectronic, trielectronic, and quadruelectronic channels. A tunable electron beam drove these processes, inducing x rays registered by two detectors mounted along and per…

[Phys. Rev. E 93, 061201(R)] Published Thu Jun 16, 2016

]]>We study symmetric simple exclusion processes (SSEP) on a ring in the presence of uniformly moving multiple defects or disorders—a generalization of the model we proposed earlier [Phys. Rev. E **89**, 022138 (2014)]. The defects move with uniform velocity and change the particle hopping rates locally. W…

[Phys. Rev. E 93, 062124] Published Thu Jun 16, 2016

]]>We study a variable-coefficient nonlinear Schrödinger (vc-NLS) equation with higher-order effects. We show that the breather solution can be converted into four types of nonlinear waves on constant backgrounds including the multipeak solitons, antidark soliton, periodic wave, and $\mathsf{W}$-shaped soliton. I…

[Phys. Rev. E 93, 062217] Published Thu Jun 16, 2016

]]>Simplicial complexes are generalized network structures able to encode interactions occurring between more than two nodes. Simplicial complexes describe a large variety of complex interacting systems ranging from brain networks to social and collaboration networks. Here we characterize the structure…

[Phys. Rev. E 93, 062311] Published Thu Jun 16, 2016

]]>Active (i.e., self-propelled or swimming) particles moving through an isotropic fluid exhibit conventional diffusive behavior. We report anomalous diffusion of an active particle moving in an anisotropic nematic background. While the translational motion parallel to the nematic director shows ballis…

[Phys. Rev. E 93, 062610] Published Thu Jun 16, 2016

]]>Physical and chemical transformation processes in reactive granular media involve the reorganization of the structure. In this paper, we study experimentally the rearrangements of a two-dimensional (2D) granular packing undergoing a localized transformation. We track the position and evolution of al…

[Phys. Rev. E 93, 062904] Published Thu Jun 16, 2016

]]>We discuss the Giardinà-Kurchan-Peliti population dynamics method for evaluating large deviations of time-averaged quantities in Markov processes [Phys. Rev. Lett. **96**, 120603 (2006)]. This method exhibits systematic errors which can be large in some circumstances, particularly for systems with weak …

[Phys. Rev. E 93, 062123] Published Wed Jun 15, 2016

]]>In this paper we analyze the rogue wave spectra of the Kundu-Eckhaus equation (KEE). We compare our findings with their nonlinear Schrödinger equation (NLSE) analogs and show that the spectra of the individual rogue waves significantly differ from their NLSE analogs. A remarkable difference is the o…

[Phys. Rev. E 93, 062215] Published Wed Jun 15, 2016

]]>We investigate transport properties of an ensemble of particles moving inside an infinite periodic horizontal planar barrier billiard. A particle moves among bars and elastically reflects on them. The motion is a uniform translation along the bars' axis. When the tangent of the incidence angle, $\alpha $, i…

[Phys. Rev. E 93, 062216] Published Wed Jun 15, 2016

]]>The authors study acoustic signals generated by filamentation of ultrashort terawatt laser pulses in water. They investigate experimentally and numerically the strong dependence of the shape and intensity of the acoustic waves on input pulse duration. They demonstrate that sound waves generated from an extended source produced by picosecond pulses have strong directivity, a finding relevant for underwater detection and communications.

[Phys. Rev. E 93, 063106] Published Wed Jun 15, 2016

]]>We consider accurate numerical solutions of the one-dimensional time-dependent Schrödinger equation when the potential is piecewise continuous. Spatial step sizes are defined for each of the regions between the discontinuities and a matching condition at the boundaries of the regions is employed. Th…

[Phys. Rev. E 93, 063307] Published Wed Jun 15, 2016

]]>We study the “color dynamics” of a hard-disk fluid confined in an annulus, as well as the corresponding hard-sphere system in three dimensions, using event-driven simulation in order to explore the effect of confinement and self-crowding on the search for targets. We compute the mean first-passage t…

[Phys. Rev. E 93, 062120] Published Tue Jun 14, 2016

]]>We consider the Peano curve separating a spanning tree from its dual spanning tree on an embedded planar graph, where the tree and dual tree are weighted by $y$ to the number of active edges, and “active” is in the sense of the Tutte polynomial. When the graph is a portion of the square grid approxima…

[Phys. Rev. E 93, 062121] Published Tue Jun 14, 2016

]]>Relaxation dynamics of complex quantum systems with strong interactions towards the steady state is a fundamental problem in statistical mechanics. The steady state of subsystems weakly interacting with their environment is described by the canonical ensemble which assumes the probability distributi…

[Phys. Rev. E 93, 062122] Published Tue Jun 14, 2016

]]>We introduce a generalized $d$-dimensional Fermi-Pasta-Ulam model in the presence of long-range interactions, and perform a first-principle study of its chaos for $d=1,2,3$ through large-scale numerical simulations. The nonlinear interaction is assumed to decay algebraically as ${d}_{ij}^{-\alpha}$ $(\alpha \ge 0)$, $\left\{{d}_{ij}\right\}$ being …

[Phys. Rev. E 93, 062213] Published Tue Jun 14, 2016

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