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Preview: Recent Articles in Phys. Rev. E

Recent Articles in Phys. Rev. E

Recent articles in Physical Review E

Published: 2017-09-20T21:16:52+00:00


Quantum statistical effects in the mass transport of interstitial solutes in a crystalline solid


Author(s): C. H. Woo and Haohua Wen

The impact of quantum statistics on the many-body dynamics of a crystalline solid at finite temperatures containing an interstitial solute atom (ISA) is investigated. The Mori-Zwanzig theory allows the many-body dynamics of the crystal to be formulated and solved analytically within a pseudo-one-par...

[Phys. Rev. E 96, 032133] Published Wed Sep 20, 2017

Fluctuations in an established transmission in the presence of a complex environment


Author(s): Dmitry V. Savin, Martin Richter, Ulrich Kuhl, Olivier Legrand, and Fabrice Mortessagne

In various situations where wave transport is preeminent, like in wireless communication, a strong established transmission is present in a complex scattering environment. We develop a nonperturbative approach to describe emerging fluctuations which combines a transmitting channel and a chaotic back...

[Phys. Rev. E 96, 032221] Published Wed Sep 20, 2017

Bragg solitons in systems with separated nonuniform Bragg grating and nonlinearity


Author(s): Tanvir Ahmed and Javid Atai

The existence and stability of quiescent Bragg grating solitons are systematically investigated in a dual-core fiber, where one of the cores is uniform and has Kerr nonlinearity while the other one is linear and incorporates a Bragg grating with dispersive reflectivity. Three spectral gaps are ident...

[Phys. Rev. E 96, 032222] Published Wed Sep 20, 2017

Transient chaos and associated system-intrinsic switching of spacetime patterns in two synaptically coupled layers of Morris-Lecar neurons


Author(s): Harrison Hartle and Renate Wackerbauer

Spatiotemporal chaos collapses to either a rest state or a propagating pulse solution in a single layer of diffusively coupled, excitable Morris-Lecar neurons. Weak synaptic coupling of two such layers reveals system intrinsic switching of spatiotemporal activity patterns within and between the laye...

[Phys. Rev. E 96, 032223] Published Wed Sep 20, 2017

Fractional cable equation for general geometry: A model of axons with swellings and anomalous diffusion


Author(s): Erick J. López-Sánchez, Juan M. Romero, and Huitzilin Yépez-Martínez

Different experimental studies have reported anomalous diffusion in brain tissues and notably this anomalous diffusion is expressed through fractional derivatives. Axons are important to understand neurodegenerative diseases such as multiple sclerosis, Alzheimer's disease, and Parkinson's disease. I...

[Phys. Rev. E 96, 032411] Published Wed Sep 20, 2017

Phase diagrams for sticky rods in bulk and in a monolayer from a lattice free-energy functional for anisotropic particles with depletion attractions


Author(s): M. Mortazavifar and M. Oettel

A density functional of fundamental measure type for a lattice model of anisotropic particles with hard-core repulsions and effective attractions is derived in the spirit of the Asakura-Oosawa model. Through polymeric lattice particles of various size and shape, effective attractions of different st...

[Phys. Rev. E 96, 032608] Published Wed Sep 20, 2017

Variational formulation of a quantitative phase-field model for nonisothermal solidification in a multicomponent alloy


Author(s): Munekazu Ohno, Tomohiro Takaki, and Yasushi Shibuta

A variational formulation of a quantitative phase-field model is presented for nonisothermal solidification in a multicomponent alloy with two-sided asymmetric diffusion. The essential ingredient of this formulation is that the diffusion fluxes for conserved variables in both the liquid and solid ar...

[Phys. Rev. E 96, 033311] Published Wed Sep 20, 2017

Erratum: Correlations in suspensions confined between viscoelastic surfaces: Noncontact microrheology [Phys. Rev. E 96, 022607 (2017)]


Author(s): Chen Bar-Haim and Haim Diamant
[Phys. Rev. E 96, 039902] Published Wed Sep 20, 2017

Fractality in nonequilibrium steady states of quasiperiodic systems


Author(s): Vipin Kerala Varma, Clélia de Mulatier, and Marko Žnidarič

We investigate the nonequilibrium response of quasiperiodic systems to boundary driving. In particular, we focus on the Aubry-André-Harper model at its metal-insulator transition and the diagonal Fibonacci model. We find that opening the system at the boundaries provides a viable experimental techni...

[Phys. Rev. E 96, 032130] Published Tue Sep 19, 2017

Mathematical and information-geometrical entropy for phenomenological Fourier and non-Fourier heat conduction


Author(s): Shu-Nan Li (李书楠) and Bing-Yang Cao (曹炳阳)

The second law of thermodynamics governs the direction of heat transport, which provides the foundational definition of thermodynamic Clausius entropy. The definitions of entropy are further generalized for the phenomenological heat transport models in the frameworks of classical irreversible thermo...

[Phys. Rev. E 96, 032131] Published Tue Sep 19, 2017

Conditional $1/{f}^{α}$ noise: From single molecules to macroscopic measurement


Author(s): N. Leibovich and E. Barkai

We demonstrate that the measurement of $1/{f}^{α}$ noise at the single molecule or nano-object limit is remarkably distinct from the macroscopic measurement over a large sample. The single-particle measurements yield a conditional time-dependent spectrum. However, the number of units fluctuating on ...

[Phys. Rev. E 96, 032132] Published Tue Sep 19, 2017

Phase transition in the singularity spectrum of an intermingled basin


Author(s): Hiromi G. Ishikawa and Takehiko Horita

A two-dimensional piecewise linear mapping is introduced as a solvable model to characterize the multifractal structure of an intermingled basin. To this end, we make use of the multifractal formalism and introduce a partition function. The singularity spectrum, which characterizes local scaling pro...

[Phys. Rev. E 96, 032217] Published Tue Sep 19, 2017

Correlations in magnitude series to assess nonlinearities: Application to multifractal models and heartbeat fluctuations


Author(s): Pedro A. Bernaola-Galván, Manuel Gómez-Extremera, A. Ramón Romance, and Pedro Carpena

The correlation properties of the magnitude of a time series are associated with nonlinear and multifractal properties and have been applied in a great variety of fields. Here we have obtained the analytical expression of the autocorrelation of the magnitude series (${C}_{|x|}$) of a linear Gaussian...

[Phys. Rev. E 96, 032218] Published Tue Sep 19, 2017

Dimensionless embedding for nonlinear time series analysis


Author(s): Yoshito Hirata and Kazuyuki Aihara

Recently, infinite-dimensional delay coordinates (InDDeCs) have been proposed for predicting high-dimensional dynamics instead of conventional delay coordinates. Although InDDeCs can realize faster computation and more accurate short-term prediction, it is still not well-known whether InDDeCs can be...

[Phys. Rev. E 96, 032219] Published Tue Sep 19, 2017

Critical transitions and perturbation growth directions


Author(s): Nahal Sharafi, Marc Timme, and Sarah Hallerberg

Critical transitions occur in a variety of dynamical systems. Here we employ quantifiers of chaos to identify changes in the dynamical structure of complex systems preceding critical transitions. As suitable indicator variables for critical transitions, we consider changes in growth rates and direct...

[Phys. Rev. E 96, 032220] Published Tue Sep 19, 2017

Imperfections, impacts, and the singularity of Euler's disk


Author(s): Tamás Baranyai and Péter L. Várkonyi

The motion of a rigid, spinning disk on a flat surface ends with a dissipation-induced finite-time singularity. The problem of finding the dominant energy absorption mechanism during the last phase of the motion generated a lively debate during the past two decades. Various candidates including air ...

[Phys. Rev. E 96, 033005] Published Tue Sep 19, 2017

Advective superdiffusion in superhydrophobic microchannels


Author(s): Tatiana V. Nizkaya, Evgeny S. Asmolov, and Olga I. Vinogradova

We consider pressure-driven flows in wide microchannels, and discuss how a transverse shear, generated by misaligned superhydrophobic walls, impacts cross-sectional spreading of Brownian particles. We show that such a transverse shear can induce an advective superdiffusion, which strongly enhances d...

[Phys. Rev. E 96, 033109] Published Tue Sep 19, 2017

Predictability of escape for a stochastic saddle-node bifurcation: When rare events are typical


Author(s): Corentin Herbert and Freddy Bouchet

Transitions between multiple stable states of nonlinear systems are ubiquitous in physics, chemistry, and beyond. Two types of behaviors are usually seen as mutually exclusive: unpredictable noise-induced transitions and predictable bifurcations of the underlying vector field. Here, we report a diff...

[Phys. Rev. E 96, 030201(R)] Published Mon Sep 18, 2017

Double transition in a model of oscillating percolation


Author(s): Sumanta Kundu, Amitava Datta, and S. S. Manna

Two distinct transition points have been observed in a problem of lattice percolation studied using a system of pulsating disks. Sites on a regular lattice are occupied by circular disks whose radii vary sinusoidally within $[0,{R}_{0}]$ starting from a random distribution of phase angles. A lattice...

[Phys. Rev. E 96, 032126] Published Mon Sep 18, 2017

Critical adsorption profiles around a sphere and a cylinder in a fluid at criticality: Local functional theory


Author(s): Shunsuke Yabunaka and Akira Onuki

We study universal critical adsorption on a solid sphere and a solid cylinder in a fluid at bulk criticality, where preferential adsorption occurs. We use a local functional theory proposed by Fisher et al. [M. E. Fisher and P. G. de Gennes, C. R. Acad. Sci. Paris Ser. B 287, 207 (1978); M. E. Fishe...

[Phys. Rev. E 96, 032127] Published Mon Sep 18, 2017

Additional energy-information relations in thermodynamics of small systems


Author(s): Raam Uzdin

The Clausius inequality form of the second law of thermodynamics relates information changes (entropy) to changes in the first moment of the energy (heat and indirectly also work). Are there similar relations between other moments of the energy distribution, and other information measures, or is the...

[Phys. Rev. E 96, 032128] Published Mon Sep 18, 2017

Cycle-expansion method for the Lyapunov exponent, susceptibility, and higher moments


Author(s): Patrick Charbonneau, Yue (Cathy) Li, Henry D. Pfister, and Sho Yaida

Lyapunov exponents characterize the chaotic nature of dynamical systems by quantifying the growth rate of uncertainty associated with the imperfect measurement of initial conditions. Finite-time estimates of the exponent, however, experience fluctuations due to both the initial condition and the sto...

[Phys. Rev. E 96, 032129] Published Mon Sep 18, 2017

Multiclustered chimeras in large semiconductor laser arrays with nonlocal interactions


Author(s): J. Shena, J. Hizanidis, P. Hövel, and G. P. Tsironis

The dynamics of a large array of coupled semiconductor lasers is studied numerically for a nonlocal coupling scheme. Our focus is on chimera states, a self-organized spatiotemporal pattern of coexisting coherence and incoherence. In laser systems, such states have been previously found for global an...

[Phys. Rev. E 96, 032215] Published Mon Sep 18, 2017

Dynamics-dependent synchronization in on-chip coupled semiconductor lasers


Author(s): Shoma Ohara, Andreas Karsaklian Dal Bosco, Kazusa Ugajin, Atsushi Uchida, Takahisa Harayama, and Masanobu Inubushi

Synchronization properties of chaotic dynamics in two mutually coupled semiconductor lasers with optical feedback embedded in a photonic integrated circuit are investigated from the point of view of their dynamical content. A phenomenon in which the two lasers can show qualitatively different synchr...

[Phys. Rev. E 96, 032216] Published Mon Sep 18, 2017

Theoretical microbial ecology without species


Author(s): Mikhail Tikhonov

Ecosystems are commonly conceptualized as networks of interacting species. However, partitioning natural diversity of organisms into discrete units is notoriously problematic and mounting experimental evidence raises the intriguing question whether this perspective is appropriate for the microbial w...

[Phys. Rev. E 96, 032410] Published Mon Sep 18, 2017

Electroclinic effect in chiral smectic-$A$ liquid crystal elastomers


Author(s): Noy Cohen and Kaushik Bhattacharya

Chiral smectic-$A$ liquid crystal elastomers are rubbery materials composed of a lamellar arrangement of liquid crystalline mesogens. It has been shown experimentally that these materials shear when subjected to an electric field due to the electrically induced tilt of the director. Experiments have...

[Phys. Rev. E 96, 032701] Published Mon Sep 18, 2017

Scaling behavior of thin films on chemically heterogeneous walls


Author(s): Alexandr Malijevský, Andrew O. Parry, and Martin Pospíšil

We study the adsorption of a fluid in the grand canonical ensemble occurring at a planar heterogeneous wall which is decorated with a chemical stripe of width $L$. We suppose that the material of the stripe strongly preferentially adsorbs the liquid in contrast to the outer material which is only pa...

[Phys. Rev. E 96, 032801] Published Mon Sep 18, 2017

Collision rate coefficient for charged dust grains in the presence of linear shear


Author(s): Huan Yang and Christopher J. Hogan, Jr.

Like and oppositely charged particles or dust grains in linear shear flows are often driven to collide with one another by fluid and/or electrostatic forces, which can strongly influence particle-size distribution evolution. In gaseous media, collisions in shear are further complicated because parti...

[Phys. Rev. E 96, 032911] Published Mon Sep 18, 2017

Fast electrons generated by quasistatic electric fields of a fs-laser-pulse-induced plasma


Author(s): F. Kleeschulte, B. Hagmeister, D. Hemmers, and G. Pretzler

We present a new acceleration mechanism for electrons taking place during the interaction of an ultrashort, nonrelativistic laser pulse with a plasma generated at the surface of a solid density target. In our experiments, the plasma is created by a laser pulse with femtosecond duration and an energy...

[Phys. Rev. E 96, 033201] Published Mon Sep 18, 2017

Subspace dynamic mode decomposition for stochastic Koopman analysis


Author(s): Naoya Takeishi, Yoshinobu Kawahara, and Takehisa Yairi

The analysis of nonlinear dynamical systems based on the Koopman operator is attracting attention in various applications. Dynamic mode decomposition (DMD) is a data-driven algorithm for Koopman spectral analysis, and several variants with a wide range of applications have been proposed. However, po...

[Phys. Rev. E 96, 033310] Published Mon Sep 18, 2017

Liquid part of the phase diagram and percolation line for two-dimensional Mercedes-Benz water


Author(s): T. Urbic

Monte Carlo simulations and Wertheim's thermodynamic perturbation theory (TPT) are used to predict the phase diagram and percolation curve for the simple two-dimensional Mercedes-Benz (MB) model of water. The MB model of water is quite popular for explaining water properties, but the phase diagram h...

[Phys. Rev. E 96, 032122] Published Fri Sep 15, 2017

Electrical autonomous Brownian gyrator


Author(s): K.-H. Chiang, C.-L. Lee, P.-Y. Lai, and Y.-F. Chen

We study experimentally and theoretically the steady-state dynamics of a simple stochastic electronic system featuring two resistor-capacitor circuits coupled by a third capacitor. The resistors are subject to thermal noises at real temperatures. The voltage fluctuation across each resistor can be c...

[Phys. Rev. E 96, 032123] Published Fri Sep 15, 2017

Three faces of entropy for complex systems: Information, thermodynamics, and the maximum entropy principle


Author(s): Stefan Thurner, Bernat Corominas-Murtra, and Rudolf Hanel

There are at least three distinct ways to conceptualize entropy: entropy as an extensive thermodynamic quantity of physical systems (Clausius, Boltzmann, Gibbs), entropy as a measure for information production of ergodic sources (Shannon), and entropy as a means for statistical inference on multinom...

[Phys. Rev. E 96, 032124] Published Fri Sep 15, 2017

Ehrenfest urn model with interaction


Author(s): Chun-Hsiung Tseng, Yee-Mou Kao, and Chi-Ho Cheng

We studied the Ehrenfest urn model in which particles in the same urn interact with each other. Depending on the nature of interaction, the system undergoes a first- or second-order phase transition. The relaxation time to the equilibrium state, the Poincaré cycles of the equilibrium state and the m...

[Phys. Rev. E 96, 032125] Published Fri Sep 15, 2017

Internal autoresonance in coupled oscillators with slowly decaying frequency


Author(s): Agnessa Kovaleva and Leonid I. Manevitch

In this work, we study resonance energy transfer from an impulsively loaded strongly nonlinear oscillator to a weakly coupled linear attachment with a slowly time-decaying stiffness. It is shown that even in the absence of external periodic forcing both oscillators may exhibit the resonance phenomen...

[Phys. Rev. E 96, 032213] Published Fri Sep 15, 2017

Unifying perspective: Solitary traveling waves as discrete breathers in Hamiltonian lattices and energy criteria for their stability


Author(s): Jesús Cuevas-Maraver, Panayotis G. Kevrekidis, Anna Vainchtein, and Haitao Xu

In this work, we provide two complementary perspectives for the (spectral) stability of solitary traveling waves in Hamiltonian nonlinear dynamical lattices, of which the Fermi-Pasta-Ulam and the Toda lattice are prototypical examples. One is as an eigenvalue problem for a stationary solution in a c...

[Phys. Rev. E 96, 032214] Published Fri Sep 15, 2017

Pseudoinverse of the Laplacian and best spreader node in a network


Author(s): P. Van Mieghem, K. Devriendt, and H. Cetinay

Determining a set of “important” nodes in a network constitutes a basic endeavor in network science. Inspired by electrical flows in a resistor network, we propose the best conducting node $j$ in a graph $G$ as the minimizer of the diagonal element ${Q}_{jj}^{†}$ of the pseudoinverse matrix ${Q}^{†}...

[Phys. Rev. E 96, 032311] Published Fri Sep 15, 2017

Generalized Archimedes' principle in active fluids


Author(s): Nitzan Razin, Raphael Voituriez, Jens Elgeti, and Nir S. Gov

We show how a gradient in the motility properties of noninteracting pointlike active particles can cause a pressure gradient that pushes a large inert object. We calculate the force on an object inside a system of active particles with position-dependent motion parameters, in one and two dimensions,...

[Phys. Rev. E 96, 032606] Published Fri Sep 15, 2017

Solute-mediated interactions between active droplets


Author(s): Pepijn G. Moerman, Henrique W. Moyses, Ernest B. van der Wee, David G. Grier, Alfons van Blaaderen, Willem K. Kegel, Jan Groenewold, and Jasna Brujic

Concentration gradients play a critical role in embryogenesis, bacterial locomotion, as well as the motility of active particles. Particles develop concentration profiles around them by dissolution, adsorption, or the reactivity of surface species. These gradients change the surface energy of the pa...

[Phys. Rev. E 96, 032607] Published Fri Sep 15, 2017

Characterizing pixel and point patterns with a hyperuniformity disorder length


Author(s): A. T. Chieco, R. Dreyfus, and D. J. Durian

We introduce the concept of a “hyperuniformity disorder length” $h$ that controls the variance of volume fraction fluctuations for randomly placed windows of fixed size. In particular, fluctuations are determined by the average number of particles within a distance $h$ from the boundary of the windo...

[Phys. Rev. E 96, 032909] Published Fri Sep 15, 2017

Hyperuniformity disorder length spectroscopy for extended particles


Author(s): D. J. Durian

The concept of a hyperuniformity disorder length $h$ was recently introduced for analyzing volume fraction fluctuations for a set of measuring windows [Chieco et al., Phys. Rev. E 96, 032909 (2017).]. This length permits a direct connection to the nature of disorder in the spatial configuration of ...

[Phys. Rev. E 96, 032910] Published Fri Sep 15, 2017

Autonomously responsive pumping by a bacterial flagellar forest: A mean-field approach


Author(s): James D. Martindale and Henry C. Fu

This study is motivated by a microfluidic device that imparts a magnetic torque on an array of bacterial flagella. Bacterial flagella can transform their helical geometry autonomously in response to properties of the background fluid, which provides an intriguing mechanism allowing their use as an e...

[Phys. Rev. E 96, 033107] Published Fri Sep 15, 2017

Generation of droplet arrays with rational number spacing patterns driven by a periodic energy landscape


Author(s): Anatoly Rinberg, Georgios Katsikis, and Manu Prakash

The generation of droplets at low Reynolds numbers is driven by nonlinear dynamics that give rise to complex patterns concerning both the droplet-to-droplet spacing and the individual droplet sizes. Here we demonstrate an experimental system in which a time-varying energy landscape provides a period...

[Phys. Rev. E 96, 033108] Published Fri Sep 15, 2017

Noise-induced torus bursting in the stochastic Hindmarsh-Rose neuron model


Author(s): Lev Ryashko and Evdokia Slepukhina

We study the phenomenon of noise-induced torus bursting on the base of the three-dimensional Hindmarsh-Rose neuron model forced by additive noise. We show that in the parametric zone close to the Neimark-Sacker bifurcation, where the deterministic system exhibits rapid tonic spiking oscillations, ra...

[Phys. Rev. E 96, 032212] Published Thu Sep 14, 2017

Efficient method for estimating the number of communities in a network


Author(s): Maria A. Riolo, George T. Cantwell, Gesine Reinert, and M. E. J. Newman

While there exist a wide range of effective methods for community detection in networks, most of them require one to know in advance how many communities one is looking for. Here we present a method for estimating the number of communities in a network using a combination of Bayesian inference with ...

[Phys. Rev. E 96, 032310] Published Thu Sep 14, 2017

Flow and clog in a silo with oscillating exit


Author(s): Kiwing To and Hsiang-Ting Tai

When grains flow out of a silo, flow rate $W$ increases with exit size $D$. If $D$ is too small, an arch may form and the flow may be blocked at the exit. To recover from clogging, the arch has to be destroyed. Here we construct a two-dimensional silo with movable exit and study the effects of exit ...

[Phys. Rev. E 96, 032906] Published Thu Sep 14, 2017

Mechanical failure in amorphous solids: Scale-free spinodal criticality


Author(s): Itamar Procaccia, Corrado Rainone, and Murari Singh

The mechanical failure of amorphous media is a ubiquitous phenomenon from material engineering to geology. It has been noticed for a long time that the phenomenon is “scale-free,” indicating some type of criticality. In spite of attempts to invoke “Self-Organized Criticality,” the physical origin of...

[Phys. Rev. E 96, 032907] Published Thu Sep 14, 2017

Shock propagation in locally driven granular systems


Author(s): Jilmy P. Joy, Sudhir N. Pathak, Dibyendu Das, and R. Rajesh

We study shock propagation in a system of initially stationary hard spheres that is driven by a continuous injection of particles at the origin. The disturbance created by the injection of energy spreads radially outward through collisions between particles. Using scaling arguments, we determine the...

[Phys. Rev. E 96, 032908] Published Thu Sep 14, 2017

Three-dimensional slow Rossby waves in rotating spherical density-stratified convection


Author(s): T. Elperin, N. Kleeorin, and I. Rogachevskii

We develop a theory of three-dimensional slow Rossby waves in rotating spherical density stratified convection. The Rossby waves, with frequencies which are much smaller than the rotating frequency, are excited by a nonaxisymmetric instability from the equilibrium based on the developed convection. ...

[Phys. Rev. E 96, 033106] Published Thu Sep 14, 2017

Smoothed particle hydrodynamics method for evaporating multiphase flows


Author(s): Xiufeng Yang and Song-Charng Kong

The smoothed particle hydrodynamics (SPH) method has been increasingly used for simulating fluid flows; however, its ability to simulate evaporating flow requires significant improvements. This paper proposes an SPH method for evaporating multiphase flows. The present SPH method can simulate the hea...

[Phys. Rev. E 96, 033309] Published Thu Sep 14, 2017

Nonmonotonic dependence of polymer-glass mechanical response on chain bending stiffness


Author(s): Christopher Ness, Vladimir V. Palyulin, Rico Milkus, Robert Elder, Timothy Sirk, and Alessio Zaccone

We investigate the mechanical properties of amorphous polymers by means of coarse-grained simulations and nonaffine lattice dynamics theory. A small increase of polymer chain bending stiffness leads first to softening of the material, while hardening happens only upon further strengthening of the ba...

[Phys. Rev. E 96, 030501(R)] Published Wed Sep 13, 2017

Strained-graphene-based highly efficient quantum heat engine operating at maximum power


Author(s): Arjun Mani and Colin Benjamin

A strained graphene monolayer is shown to operate as a highly efficient quantum heat engine delivering maximum power. The efficiency and power of the proposed device exceeds that of recent proposals. The reason for these excellent characteristics is that strain enables complete valley separation in ...

[Phys. Rev. E 96, 032118] Published Wed Sep 13, 2017

Kardar-Parisi-Zhang modes in $d$-dimensional directed polymers


Author(s): G. M. Schütz and B. Wehefritz–Kaufmann

We define a stochastic lattice model for a fluctuating directed polymer in $d≥2$ dimensions. This model can be alternatively interpreted as a fluctuating random path in two dimensions, or a one-dimensional asymmetric simple exclusion process with $d−1$ conserved species of particles. The determinist...

[Phys. Rev. E 96, 032119] Published Wed Sep 13, 2017

Predictability of fat-tailed extremes


Author(s): Tamás Bódai and Christian Franzke

We conjecture for a linear stochastic differential equation that the predictability of threshold exceedances (I) improves with the event magnitude when the noise is a so-called correlated additive-multiplicative noise, no matter the nature of the stochastic innovations, and also improves when (II) t...

[Phys. Rev. E 96, 032120] Published Wed Sep 13, 2017

Recurrence relations in one-dimensional Ising models


Author(s): C. M. Silva da Conceição and R. N. P. Maia

The exact finite-size partition function for the nonhomogeneous one-dimensional (1D) Ising model is found through an approach using algebra operators. Specifically, in this paper we show that the partition function can be computed through a trace from a linear second-order recurrence relation with n...

[Phys. Rev. E 96, 032121] Published Wed Sep 13, 2017

Brownian systems with spatially inhomogeneous activity


Author(s): A. Sharma and J. M. Brader

We generalize the Green-Kubo approach, previously applied to bulk systems of spherically symmetric active particles [J. Chem. Phys. 145, 161101 (2016)], to include spatially inhomogeneous activity. The method is applied to predict the spatial dependence of the average orientation per particle and th...

[Phys. Rev. E 96, 032604] Published Wed Sep 13, 2017

Wedge wetting by electrolyte solutions


Author(s): Maximilian Mußotter and Markus Bier

The wetting of a charged wedgelike wall by an electrolyte solution is investigated by means of classical density functional theory. As in other studies on wedge wetting, this geometry is considered as the most simple deviation from a planar substrate, and it serves as a first step toward more comple...

[Phys. Rev. E 96, 032605] Published Wed Sep 13, 2017

Effective one-dimensional approach to the source reconstruction problem of three-dimensional inverse optoacoustics


Author(s): J. Stritzel, O. Melchert, M. Wollweber, and B. Roth

The direct problem of optoacoustic signal generation in biological media consists of solving an inhomogeneous three-dimensional (3D) wave equation for an initial acoustic stress profile. In contrast, the more defiant inverse problem requires the reconstruction of the initial stress profile from a pr...

[Phys. Rev. E 96, 033308] Published Wed Sep 13, 2017

X-ray scattering reveals molecular tilt is an order parameter for the main phase transition in a model biomembrane


Author(s): John F. Nagle

Synchrotron diffuse x-ray scattering data reveal a dramatic softening of the molecular tilt modulus ${K}_{θ}$ of the model biomembrane composed of DMPC lipids as the temperature is lowered towards the main phase transition temperature at ${T}_{M}={24}^{\phantom{\rule{0.16em}{0ex}}∘}\mathrm{C}$. Spon...

[Phys. Rev. E 96, 030401(R)] Published Tue Sep 12, 2017

Continuous-time random-walk model for anomalous diffusion in expanding media


Author(s): F. Le Vot, E. Abad, and S. B. Yuste

Expanding media are typical in many different fields, e.g., in biology and cosmology. In general, a medium expansion (contraction) brings about dramatic changes in the behavior of diffusive transport properties such as the set of positional moments and the Green's function. Here, we focus on the cha...

[Phys. Rev. E 96, 032117] Published Tue Sep 12, 2017

Stable three-dimensional modon soliton in plasmas


Author(s): Volodymyr M. Lashkin

We derive the nonlinear equations that describe coupled drift waves and ion acoustic waves in a plasma. We show that when the coupling to ion acoustic waves is negligible, the reduced nonlinear equation is a generalization of the Hasegawa-Mima equation to the three-dimensional (3D) case. We find an ...

[Phys. Rev. E 96, 032211] Published Tue Sep 12, 2017

Accessibility and delay in random temporal networks


Author(s): Shahriar Etemadi Tajbakhsh, Justin P. Coon, and David E. Simmons

In a wide range of complex networks, the links between the nodes are temporal and may sporadically appear and disappear. This temporality is fundamental to analyzing the formation of paths within such networks. Moreover, the presence of the links between the nodes is a random process induced by natu...

[Phys. Rev. E 96, 032309] Published Tue Sep 12, 2017

Avalanche precursors in a frictional model


Author(s): Axelle Amon, Baptiste Blanc, and Jean-Christophe Géminard

We present a one-dimensional numerical model based on elastically coupled sliders on a frictional incline of variable tilt. This very simple approach makes it possible to study the precursors to the avalanche and to provide a rationalization of different features that have been observed in experimen...

[Phys. Rev. E 96, 033004] Published Tue Sep 12, 2017

Publisher's Note: Golf-course and funnel energy landscapes: Protein folding concepts in martensites [Phys. Rev. E 95, 063003 (2017)]


Author(s): N. Shankaraiah
[Phys. Rev. E 96, 039901] Published Tue Sep 12, 2017

Nonstationary dynamics of encounters: Mean valuable territory covered by a random searcher


Author(s): Daniel Campos, Frederic Bartumeus, and Vicenç Méndez

Inspired by recent experiments on the organism Caenorhabditis elegans we present a stochastic problem to capture the adaptive dynamics of search in living beings, which involves the exploration-exploitation dilemma between remaining in a previously preferred area and relocating to new places. We ass...

[Phys. Rev. E 96, 032111] Published Mon Sep 11, 2017

Stability of the quantum Sherrington-Kirkpatrick spin glass model


Author(s): A. P. Young

I study in detail the quantum Sherrington-Kirkpatrick (SK) model, i.e., the infinite-range Ising spin glass in a transverse field, by solving numerically the effective one-dimensional model that the quantum SK model can be mapped to in the thermodynamic limit. I find that the replica symmetric solut...

[Phys. Rev. E 96, 032112] Published Mon Sep 11, 2017

Universality-class crossover by a nonorder field introduced to the pair contact process with diffusion


Author(s): Su-Chan Park (박수찬)

The one-dimensional pair contact process with diffusion (PCPD), an interacting particle system with diffusion, pair annihilation, and creation by pairs, has defied consensus about the universality class to which it belongs. An argument by Hinrichsen [Physica A 361, 457 (2006)] claims that freely dif...

[Phys. Rev. E 96, 032113] Published Mon Sep 11, 2017

Antiferromagnetic Ising model in an imaginary magnetic field


Author(s): Vicente Azcoiti, Giuseppe Di Carlo, Eduardo Follana, and Eduardo Royo-Amondarain

We study the two-dimensional antiferromagnetic Ising model with a purely imaginary magnetic field, which can be thought of as a toy model for the usual $θ$ physics. Our motivation is to have a benchmark calculation in a system which suffers from a strong sign problem, so that our results can be used...

[Phys. Rev. E 96, 032114] Published Mon Sep 11, 2017

Uhlenbeck-Ford model: Phase diagram and corresponding-states analysis


Author(s): Rodolfo Paula Leite, Pedro Antonio Santos-Flórez, and Maurice de Koning

Using molecular dynamics simulations and nonequilibrium thermodynamic-integration techniques we compute the Helmholtz free energies of the body-centered-cubic (bcc), face-centered-cubic (fcc), hexagonal close-packed, and fluid phases of the Uhlenbeck-Ford model (UFM) and use the results to construct...

[Phys. Rev. E 96, 032115] Published Mon Sep 11, 2017

Two-time correlation functions and the Lee-Yang zeros for an interacting Bose gas


Author(s): Kh. P. Gnatenko, A. Kargol, and V. M. Tkachuk

Two-time correlation functions of a system of Bose particles are studied. We find a relation of zeros of the correlation functions with the Lee-Yang zeros of the partition function of the system. The obtained relation gives the possibility to observe the Lee-Yang zeros experimentally. A particular c...

[Phys. Rev. E 96, 032116] Published Mon Sep 11, 2017

Transport, diffusion, and energy studies in the Arnold-Beltrami-Childress map


Author(s): Swetamber Das and Neelima Gupte

We study the transport and diffusion properties of passive inertial particles described by a six-dimensional dissipative bailout embedding map. The base map chosen for the study is the three-dimensional incompressible Arnold-Beltrami-Childress (ABC) map chosen as a representation of volume preservin...

[Phys. Rev. E 96, 032210] Published Mon Sep 11, 2017

Difference between memory and prediction in linear recurrent networks


Author(s): Sarah Marzen

Recurrent networks are trained to memorize their input better, often in the hopes that such training will increase the ability of the network to predict. We show that networks designed to memorize input can be arbitrarily bad at prediction. We also find, for several types of inputs, that one-node ne...

[Phys. Rev. E 96, 032308] Published Mon Sep 11, 2017

Chase-and-run dynamics in cell motility and the molecular rupture of interacting active elastic dimers


Author(s): David Mayett, Nicholas Bitten, Moumita Das, and J. M. Schwarz

Cell migration in morphogenesis and cancer metastasis typically involves interplay between different cell types. We construct and study a minimal, one-dimensional model composed of two different motile cells with each cell represented as an active elastic dimer. The interaction between the two cells...

[Phys. Rev. E 96, 032407] Published Mon Sep 11, 2017

Force spectroscopy unravels the role of ionic strength on DNA-cisplatin interaction: Modulating the binding parameters


Author(s): L. Oliveira and M. S. Rocha

In the present work we have gone a step forward in the understanding of the DNA-cisplatin interaction, investigating the role of the ionic strength on the complexes formation. To achieve this task, we use optical tweezers to perform force spectroscopy on the DNA-cisplatin complexes, determining thei...

[Phys. Rev. E 96, 032408] Published Mon Sep 11, 2017

Predicting Escherichia coli's chemotactic drift under exponential gradient


Author(s): Sibendu Samanta, Ritwik Layek, Shantimoy Kar, M. Kiran Raj, Sudipta Mukhopadhyay, and Suman Chakraborty

Bacterial species are known to show chemotaxis, i.e., the directed motions in the presence of certain chemicals, whereas the motion is random in the absence of those chemicals. The bacteria modulate their run time to induce chemotactic drift towards the attractant chemicals and away from the repelle...

[Phys. Rev. E 96, 032409] Published Mon Sep 11, 2017

Morphological-evolution pathway during phase separation in polymer solutions with highly asymmetrical miscibility gap


Author(s): Gang Zhang, Tao Yang, Sen Yang, and Yunzhi Wang

Microstructural evolution during thermally induced phase separation in a polymer solution with a highly asymmetrical miscibility gap is analyzed using Flory-Huggins thermodynamics and nonlinear Cahn-Hilliard kinetics. Computer simulation results demonstrate that, in contrast to systems with symmetri...

[Phys. Rev. E 96, 032501] Published Mon Sep 11, 2017

Destabilization of a liquid metal by nonuniform Joule heating


Author(s): Sébastien Renaudière de Vaux, Rémi Zamansky, Wladimir Bergez, Philippe Tordjeman, and Jean-François Haquet

We study the effect of an impressing AC magnetic field at the bottom of a liquid metal layer of thickness $h$. In this situation the fluid is set in motion by the buoyancy forces caused by internal heat sources. The heat sources, caused by the Joule effect induced by the AC field, present an exponen...

[Phys. Rev. E 96, 033103] Published Mon Sep 11, 2017

Weakly non-Boussinesq convection in a gaseous spherical shell


Author(s): Lydia Korre, Nicholas Brummell, and Pascale Garaud

We examine the dynamics associated with weakly compressible convection in a spherical shell by running 3D direct numerical simulations using the Boussinesq formalism [Spiegel and Veronis, Astrophys. J. 131, 442 (1960)]. Motivated by problems in astrophysics, we assume the existence of a finite adiab...

[Phys. Rev. E 96, 033104] Published Mon Sep 11, 2017

Equilibrium position of a rigid sphere in a turbulent jet: A problem of elastic reconfiguration


Author(s): T. Barois, P. D. Huck, M. Bourgoin, and R. Volk

The position of floating spheres trapped within an immersed turbulent water jet is investigated. Using the self-similarity properties of the jet velocity profile, the equilibrium problem is formulated in a rescaled space where the sphere is static and deformable. This approach is found to be related...

[Phys. Rev. E 96, 033105] Published Mon Sep 11, 2017

Pseudospectral Maxwell solvers for an accurate modeling of Doppler harmonic generation on plasma mirrors with particle-in-cell codes


Author(s): G. Blaclard, H. Vincenti, R. Lehe, and J. L. Vay

With the advent of petawatt class lasers, the very large laser intensities attainable on target should enable the production of intense high-order Doppler harmonics from relativistic laser-plasma mirror interactions. At present, the modeling of these harmonics with particle-in-cell (PIC) codes is ex...

[Phys. Rev. E 96, 033305] Published Mon Sep 11, 2017

Recursive regularization step for high-order lattice Boltzmann methods


Author(s): Christophe Coreixas, Gauthier Wissocq, Guillaume Puigt, Jean-François Boussuge, and Pierre Sagaut

A lattice Boltzmann method (LBM) with enhanced stability and accuracy is presented for various Hermite tensor-based lattice structures. The collision operator relies on a regularization step, which is here improved through a recursive computation of nonequilibrium Hermite polynomial coefficients. In...

[Phys. Rev. E 96, 033306] Published Mon Sep 11, 2017

Extracting oscillating components from nonstationary time series: A wavelet-induced method


Author(s): Adrien Deliège and Samuel Nicolay

This paper consists in the description and application of a method called wavelet-induced mode extraction (WIME) in the context of time-frequency analysis. WIME aims to extract the oscillating components that build amplitude modulated-frequency modulated signals. The essence of this technique relies...

[Phys. Rev. E 96, 033307] Published Mon Sep 11, 2017

Evoking prescribed spike times in stochastic neurons


Author(s): Jens Doose and Benjamin Lindner

Single cell stimulation in vivo is a powerful tool to investigate the properties of single neurons and their functionality in neural networks. We present a method to determine a cell-specific stimulus that reliably evokes a prescribed spike train with high temporal precision of action potentials. We...

[Phys. Rev. E 96, 032109] Published Fri Sep 08, 2017

Quantum Otto engine with exchange coupling in the presence of level degeneracy


Author(s): Venu Mehta and Ramandeep S. Johal

We consider a quasistatic quantum Otto cycle using two effectively two-level systems with degeneracy in the excited state. The systems are coupled through isotropic exchange interaction of strength $J>0$, in the presence of an external magnetic field $B$ which is varied during the cycle. We prove...

[Phys. Rev. E 96, 032110] Published Fri Sep 08, 2017

Vibrational resonance in an inhomogeneous medium with periodic dissipation


Author(s): T. O. Roy-Layinde, J. A. Laoye, O. O. Popoola, U. E. Vincent, and P. V. E. McClintock

The role of nonlinear dissipation in vibrational resonance (VR) is investigated in an inhomogeneous system characterized by a symmetric and spatially periodic potential and subjected to nonuniform state-dependent damping and a biharmonic driving force. The contributions of the parameters of the high...

[Phys. Rev. E 96, 032209] Published Fri Sep 08, 2017

Existence and construction of large stable food webs


Author(s): Jan O. Haerter, Namiko Mitarai, and Kim Sneppen

Ecological diversity is ubiquitous despite the restrictions imposed by competitive exclusion and apparent competition. To explain the observed richness of species in a given habitat, food-web theory has explored nonlinear functional responses, self-interaction, or spatial structure and dispersal—mod...

[Phys. Rev. E 96, 032406] Published Fri Sep 08, 2017

Drag force in a cold or hot granular medium


Author(s): A. Seguin and P. Gondret

We measure experimentally and analyze the resisting force exerted by a bidimensional packing of small disks on a larger intruder disk dragged horizontally at constant velocity ${V}_{0}$. Depending on the vibration level of the packing that leads to a granular “cold” or “hot” packing, two force regim...

[Phys. Rev. E 96, 032905] Published Fri Sep 08, 2017

Proxy-equation paradigm: A strategy for massively parallel asynchronous computations


Author(s): Ankita Mittal and Sharath Girimaji

Massively parallel simulations of transport equation systems call for a paradigm change in algorithm development to achieve efficient scalability. Traditional approaches require time synchronization of processing elements (PEs), which severely restricts scalability. Relaxing synchronization requirem...

[Phys. Rev. E 96, 033304] Published Fri Sep 08, 2017

Escape of coupled Brownian particles across a fluctuating barrier


Author(s): R. K. Singh

The escape of two harmonically coupled Brownian particles across the fluctuating barrier of a bistable potential is investigated with correlated additive and multiplicative fluctuations. Positive correlations enhance the rate of escape across the barrier when the coupling is effective, whereas for w...

[Phys. Rev. E 96, 032108] Published Thu Sep 07, 2017

Two distinct bifurcation routes for delayed optoelectronic oscillators


Author(s): Lionel Weicker, Gaetan Friart, and Thomas Erneux

We investigate the coexistence of low- and high-frequency oscillations in a delayed optoelectronic oscillator. We identify two nearby Hopf bifurcation points exhibiting low and high frequencies and demonstrate analytically how they lead to stable solutions. We then show numerically that these two br...

[Phys. Rev. E 96, 032206] Published Thu Sep 07, 2017

Front propagation in weakly subcritical pattern-forming systems


Author(s): Benjamin C. Ponedel, Hsien-Ching Kao, and Edgar Knobloch

The speed and stability of fronts near a weakly subcritical steady-state bifurcation are studied, focusing on the transition between pushed and pulled fronts in the bistable Ginzburg-Landau equation. Exact nonlinear front solutions are constructed and their stability properties investigated. In some...

[Phys. Rev. E 96, 032208] Published Thu Sep 07, 2017

Nucleation of twisted and tubular states in chiral ribbons


Author(s): Ralf Blossey

Bilayers of chiral molecules can self-assemble into twisted and tubular structures, as was recently shown with chiral molecular constituents such as ssDNA-amphiphiles. I show that the dynamics of the transition between these topologies is driven by a nucleation mechanism that bears a striking formal...

[Phys. Rev. E 96, 032405] Published Thu Sep 07, 2017

Craters produced by explosions in a granular medium


Author(s): F. Pacheco-Vázquez, A. Tacumá, and J. O. Marston

We report on an experimental investigation of craters generated by explosions at the surface of a model granular bed. Following the initial blast, a pressure wave propagates through the bed, producing high-speed ejecta of grains and ultimately a crater. We analyzed the crater morphology in the conte...

[Phys. Rev. E 96, 032904] Published Thu Sep 07, 2017

Discrete-to-continuum modeling of weakly interacting incommensurate chains


Author(s): Malena I. Español, Dmitry Golovaty, and J. Patrick Wilber

In this paper we use a formal discrete-to-continuum procedure to derive a continuum variational model for two chains of atoms with slightly incommensurate lattices. The chains represent a cross section of a three-dimensional system consisting of a graphene sheet suspended over a substrate. The conti...

[Phys. Rev. E 96, 033003] Published Thu Sep 07, 2017

Power series expansions for the planar monomer-dimer problem


Author(s): Gleb Pogudin

We compute the free energy of the planar monomer-dimer model. Unlike the classical planar dimer model, an exact solution is not known in this case. Even the computation of the low-density power series expansion requires heavy and nontrivial computations. Despite the exponential computational complex...

[Phys. Rev. E 96, 033303] Published Thu Sep 07, 2017

Work and power fluctuations in a critical heat engine


Author(s): Viktor Holubec and Artem Ryabov

We investigate fluctuations of output work for a class of Stirling heat engines with working fluid composed of interacting units and compare these fluctuations to an average work output. In particular, we focus on engine performance close to a critical point where Carnot's efficiency may be attained...

[Phys. Rev. E 96, 030102(R)] Published Wed Sep 06, 2017

Lévy walks in nonhomogeneous environments


Author(s): A. Kamińska and T. Srokowski

The Lévy walk process with rests is discussed. The jumping time is governed by an $α$-stable distribution with $α>1$ while a waiting time distribution is Poissonian and involves a position-dependent rate which reflects a nonhomogeneous trap distribution. The master equation is derived and solved ...

[Phys. Rev. E 96, 032105] Published Wed Sep 06, 2017

Nonequilibrium thermodynamics with binary quantum correlations


Author(s): K. Morawetz

The balance equations for thermodynamic quantities are derived from the nonlocal quantum kinetic equation. The nonlocal collisions lead to molecular contributions to the observables and currents. The corresponding correlated parts of the observables are found to be given by the rate to form a molecu...

[Phys. Rev. E 96, 032106] Published Wed Sep 06, 2017

Gaps between avalanches in one-dimensional random-field Ising models


Author(s): Jishnu N. Nampoothiri, Kabir Ramola, Sanjib Sabhapandit, and Bulbul Chakraborty

We analyze the statistics of gaps ($\mathrm{Δ}H$) between successive avalanches in one-dimensional random-field Ising models (RFIMs) in an external field $H$ at zero temperature. In the first part of the paper we study the nearest-neighbor ferromagnetic RFIM. We map the sequence of avalanches in thi...

[Phys. Rev. E 96, 032107] Published Wed Sep 06, 2017

Basins of attraction of the bistable region of time-delayed cutting dynamics


Author(s): Yao Yan, Jian Xu, and Marian Wiercigroch

This paper investigates the effects of bistability in a nonsmooth time-delayed dynamical system, which is often manifested in science and engineering. Previous studies on cutting dynamics have demonstrated persistent coexistence of chatter and chatter-free responses in a bistable region located in t...

[Phys. Rev. E 96, 032205] Published Wed Sep 06, 2017