Maxwell’s demon works by rectifying microscopic fluctuations, but recently an implementation was proposed that can continue to work at macroscopic scales. This paper studies that proposal in more detail, with a particular focus on the flows of information.

[Phys. Rev. E 107, 014136] Published Thu Jan 26, 2023

]]>Knowledge about existence, strength, and dominant direction of causal influences is of paramount importance for understanding complex systems. Current methods deduce ambiguous causal links among different observables from (complex) dynamical systems, if a limited amount of realistic data is used. It…

[Phys. Rev. E 107, 014214] Published Thu Jan 26, 2023

]]>One of the most interesting dynamics of rotating spiral waves in an excitable medium is meandering. The tip of a meandering spiral wave moves along a complex trajectory, which often takes the shape of an epitrochoid or hypotrochoid with inward or outward petals. The cycle lengths (CLs) of a meanderi…

[Phys. Rev. E 107, 014215] Published Thu Jan 26, 2023

]]>The Beck-Cohen superstatistics became an important theory in the scenario of complex systems because it generates distributions representing regions of a nonequilibrium system, characterized by different temperatures $T\equiv {\beta}^{-1}$, leading to a probability distribution $f\left(\beta \right)$. In superstatistics, some classes…

[Phys. Rev. E 107, 014132] Published Wed Jan 25, 2023

]]>Monte Carlo simulations and finite-size scaling theory have been carried out to study the critical behavior and universality for the isotropic-nematic (IN) phase transition in a system of straight rigid pentamers adsorbed on a triangular lattice with polarized nonhomogeneous intermolecular interacti…

[Phys. Rev. E 107, 014133] Published Wed Jan 25, 2023

]]>Self-diffusion $D$ in a system of particles that interact with a pseudo-hard-sphere or a Lennard-Jones potential is analyzed. Coupling with a solvent is represented by a Langevin thermostat, characterized by the damping time ${t}_{d}$. The hypotheses that $D={D}_{0}\phi $ is proposed, where ${D}_{0}$ is the small concentratio…

[Phys. Rev. E 107, 014134] Published Wed Jan 25, 2023

]]>The dynamics of a maximally entangled pair of spin-$\frac{1}{2}$ particles is obtained in the presence of random magnetic fields which are correlated. The two spin-$\frac{1}{2}$ particles are assumed to be maximally entangled initially and are then disturbed by the magnetic fields modeled as Gaussian vector random proces…

[Phys. Rev. E 107, 014135] Published Wed Jan 25, 2023

]]>Organisms across many lengthscales generate specific strategies for motion that are crucial to their survival. Here, we detail the motion of a nontraditional organism, the Mexican jumping bean, where a larva encapsulated within a seed blindly moves the seed in search of shade. Using image analysis t…

[Phys. Rev. E 107, 014609] Published Wed Jan 25, 2023

]]>The geometric pore size distribution (PSD) $P\left(r\right)$ as function of pore radius $r$ is an important characteristic of porous structures, including particle-based systems, because it allows us to analyze adsorption behavior, the strength of materials, etc. Multiple definitions and corresponding algorithms, …

[Phys. Rev. E 107, 015307] Published Wed Jan 25, 2023

]]>[Phys. Rev. E 107, 019903] Published Wed Jan 25, 2023

]]>Under temperature oscillation, cyclic molecular machines such as catalysts and enzymes could harness energy from the oscillatory bath and use it to drive other processes. Using an alternative geometrical approach, under fast temperature oscillation, we derive a general design principle for obtaining…

[Phys. Rev. E 107, L012102] Published Wed Jan 25, 2023

]]>The viscoelastic $\alpha $ relaxation in glass-forming ${\mathrm{GeO}}_{2}$ was measured over a range of temperatures near the glass transition using photon correlation spectroscopy. The relaxation in this “strong” glass former exhibits a nonexponential decay identical to that found in a great many simple organic “fragile”…

[Phys. Rev. E 107, L012602] Published Wed Jan 25, 2023

]]>With advances in instrumentation and the tremendous increase in computational power, vast amounts of data are becoming available for many complex phenomena in macroscopically heterogeneous media, particularly those that involve flow and transport processes, which are problems of fundamental interest…

[Phys. Rev. E 107, L013301] Published Wed Jan 25, 2023

]]>Important models of nonequilibrium statistical physics (NESP) are limited by a commonly used, but often unrecognized, near-equilibrium approximation. Fokker-Planck and Langevin equations, the Einstein and random-flight diffusion models, and the Schnakenberg model of biochemical networks suppose that…

[Phys. Rev. E 107, 014131] Published Tue Jan 24, 2023

]]>We study active surface wetting using a minimal model of bacteria that takes into account the intrinsic motility diversity of living matter. A mixture of “fast” and “slow” self-propelled Brownian particles is considered in the presence of a wall. The evolution of the wetting layer thickness shows an…

[Phys. Rev. E 107, 014608] Published Tue Jan 24, 2023

]]>A theoretical model of thermal boundary layers and acoustic heating in microscale acoustofluidic devices is presented. Based on it, an iterative numerical model is developed that enables numerical simulation of nonlinear thermoviscous effects due to acoustic heating and thermal advection. Effective …

[Phys. Rev. E 107, 015106] Published Tue Jan 24, 2023

]]>Fluctuating hydrodynamics, a method that incorporates fluctuations into the continuum description of fluids, can only be solved when simplifying assumptions are made. This paper describes an approach that extends the method by using a staggered spatial discretization, and the results compare well with previous work and other methods.

[Phys. Rev. E 107, 015305] Published Tue Jan 24, 2023

]]>Accurately modeling dense plasmas over wide-ranging conditions of pressure and temperature is a grand challenge critically important to our understanding of stellar and planetary physics as well as inertial confinement fusion. In this work, we employ Kohn-Sham density functional theory (DFT) molecul…

[Phys. Rev. E 107, 015306] Published Tue Jan 24, 2023

]]>The nucleation of crystals is a prominent phenomenon in science and technology that still lacks a full atomic-scale understanding. Much work has been devoted to identifying order parameters able to track the process, from the inception of early nuclei to their maturing to critical size until growth …

[Phys. Rev. E 107, L012601] Published Tue Jan 24, 2023

]]>Allan variance has been widely utilized for evaluating the stability of the time series generated by atomic clocks and lasers, in time regimes ranging from short to extremely long. This multiscale examination capability of the Allan variance may also be beneficial in evaluating the chaotic oscillati…

[Phys. Rev. E 107, 014211] Published Mon Jan 23, 2023

]]>Using a generalized nonlinear Schrödinger equation, we investigate the transformation of a fundamental rogue wave solution to a collection of solitons. Taking the third-order dispersion, self-steepening, and Raman-induced self-frequency shift as the generalizing effects, we systematically observe ho…

[Phys. Rev. E 107, 014212] Published Mon Jan 23, 2023

]]>The escape statistics of a gradient dynamical system perturbed by noise can be estimated using properties of the associated potential landscape. More generally, the Freidlin and Wentzell quasipotential (QP) can be used for similar purposes, but computing this is nontrivial and it is only defined rel…

[Phys. Rev. E 107, 014213] Published Mon Jan 23, 2023

]]>Neural networks have proven to be remarkably successful for a wide range of complicated tasks, from image recognition and object detection to speech recognition and machine translation. One of their successes lies in their ability to predict future dynamics given a suitable training data set. Previo…

[Phys. Rev. E 107, 014304] Published Mon Jan 23, 2023

]]>The effect of confining walls on the fluctuation of a nanoscale thin film's free surface is studied using stochastic thin-film equations (STFEs). Two canonical boundary conditions are employed to reveal the influence of the confinement: (1) an imposed contact angle and (2) a pinned contact line. A l…

[Phys. Rev. E 107, 015105] Published Mon Jan 23, 2023

]]>[Phys. Rev. E 107, 019902] Published Mon Jan 23, 2023

]]>Complex networks often possess communities defined based on network connectivity. When dynamics undergo in a network, one can also consider dynamical communities, i.e., a group of nodes displaying a similar dynamical process. We have investigated both analytically and numerically the development of …

[Phys. Rev. E 107, 014210] Published Fri Jan 20, 2023

]]>Many microorganisms have the ability to move toward a light source, and the authors study this process in Chlamydomonas, a unicellular member of a family of green algae. They show that the mechanism is shared with multicellular green algae in the same family, shedding light on the evolutionary transition from unicellular to multicellular organisms.

[Phys. Rev. E 107, 014404] Published Fri Jan 20, 2023

]]>We combine *ab initio* path integral Monte Carlo (PIMC) simulations with fixed ion configurations from density functional theory molecular dynamics (DFT-MD) simulations to solve the electronic problem for hydrogen under warm dense matter conditions [Böhme *et al.*, Phys. Rev. Lett. **129**, 066402 (2022)].…

[Phys. Rev. E 107, 015206] Published Fri Jan 20, 2023

]]>We investigate the eigenstate thermalization properties of the spin-1/2 $XXZ$ model in two-dimensional rectangular lattices of size ${L}_{1}\times {L}_{2}$ under periodic boundary conditions. Exploiting the symmetry property, we can perform an exact diagonalization study of the energy eigenvalues up to system size $4\times 7$ …

[Phys. Rev. E 107, 014130] Published Thu Jan 19, 2023

]]>The critical behavior of the nondiffusive susceptible-infected-recovered model on lattices had been well established in virtue of its duality symmetry. By performing simulations and scaling analyses for the diffusive variant on the two-dimensional lattice, we show that diffusion for all agents, whil…

[Phys. Rev. E 107, 014303] Published Thu Jan 19, 2023

]]>Adding the notion of spatial locality to the susceptible-infected-recovered (or SIR) model, allows to capture local saturation of an epidemic. The resulting minimum model of an epidemic, consisting of five ordinary differential equations with constant model coefficients, reproduces slowly decaying p…

[Phys. Rev. E 107, L012201] Published Thu Jan 19, 2023

]]>Across many problems in science and engineering, it is important to consider how much the output of a given system changes due to perturbations of the input. Here, we investigate the glassy phase of $\pm J$ spin glasses at zero temperature by calculating the robustness of the ground states to flips in th…

[Phys. Rev. E 107, 014126] Published Wed Jan 18, 2023

]]>In the recent literature, the $g$-subdiffusion equation involving Caputo fractional derivatives with respect to another function has been studied in relation to anomalous diffusions with a continuous transition between different subdiffusive regimes. In this paper we study the problem of $g$-fractional …

[Phys. Rev. E 107, 014127] Published Wed Jan 18, 2023

]]>In this paper, we investigate a generalized model of $N$ particles undergoing second-order nonlocal interactions on a lattice. Our results have applications across many research areas, including the modeling of migration, information dynamics, and Muller's ratchet—the irreversible accumulation of dele…

[Phys. Rev. E 107, 014128] Published Wed Jan 18, 2023

]]>Out-of-equilibrium systems continuously generate entropy, with its rate of production being a fingerprint of nonequilibrium conditions. In small-scale dissipative systems subject to thermal noise, fluctuations of entropy production are significant. Hitherto, mean and variance have been abundantly st…

[Phys. Rev. E 107, 014129] Published Wed Jan 18, 2023

]]>Node role explainability in complex networks is very difficult yet is crucial in different application domains such as social science, neurosciences, or computer science. Many efforts have been made on the quantification of hubs revealing particular nodes in a network using a given structural proper…

[Phys. Rev. E 107, 014302] Published Wed Jan 18, 2023

]]>Diffusivity in some soft matter and biological systems changes with time, called the fluctuating diffusivity. In this work, we propose a novel origin for fluctuating diffusivity based on stochastic simulations of binary gas mixtures. In this system, the fraction of one component is significantly sma…

[Phys. Rev. E 107, 014605] Published Wed Jan 18, 2023

]]>Collective motion of animal groups such as fish schools and bird flocks in three-dimensional (3D) space are modeled by considering a topological (Voronoi) neighborhood. The tridimensionality of the group is quantified. Apart from the patterns of swarming, schooling, and milling, we identify a 3D bai…

[Phys. Rev. E 107, 014606] Published Wed Jan 18, 2023

]]>The multifaceted appearance of soft robots in the form of swimmers, catheters, surgical devices, and drug-carrier vehicles in biomedical and microfluidic applications is ubiquitous today. Jellyfish-inspired soft robotic swimmers (jellyfishbots) have been fabricated and experimentally characterized b…

[Phys. Rev. E 107, 014607] Published Wed Jan 18, 2023

]]>[Phys. Rev. E 107, 019901] Published Wed Jan 18, 2023

]]>We investigate the critical behavior and the nature of the low-temperature phase of the $O\left(N\right)$ models treating the number of field components $N$ and the dimension $d$ as continuous variables with a focus on the $d\le 2$ and $N\le 2$ quadrant of the $(d,N)$ plane. We precisely chart a region of the $(d,N)$ plane where …

[Phys. Rev. E 107, 014121] Published Tue Jan 17, 2023

]]>We use extreme value statistics to study the dynamics of coarsening in aggregation-fragmentation models which form condensates in the steady state. The dynamics is dominated by the formation of local condensates on a coarsening length scale which grows in time in both the zero range process and cons…

[Phys. Rev. E 107, 014122] Published Tue Jan 17, 2023

]]>We study the stationary state of a chain of harmonic oscillators driven by two active reservoirs at the two ends. These reservoirs exert correlated stochastic forces on the boundary oscillators which eventually leads to a nonequilibrium stationary state of the system. We consider three most well-kno…

[Phys. Rev. E 107, 014123] Published Tue Jan 17, 2023

]]>Fluctuations of dynamical quantities are fundamental and inevitable. For the booming research in nanotechnology, huge relative fluctuation comes with the reduction of system size, leading to large uncertainty for the estimates of dynamical quantities. Thus, increasing statistical efficiency, i.e., r…

[Phys. Rev. E 107, 014124] Published Tue Jan 17, 2023

]]>The Bohr-Van Leeuwen theorem states that an external static magnetic field does not influence the state of a classical equilibrium system: There is no equilibrium classical magnetism, since the magnetic field does not do work. We revisit this famous no-go result and consider a classical charged Brow…

[Phys. Rev. E 107, 014125] Published Tue Jan 17, 2023

]]>The Vicsek model encompasses the paradigm of active dry matter. Motivated by collective behavior of insects in swarms, we have studied finite-size effects and criticality in the three-dimensional, harmonically confined Vicsek model. We have discovered a phase transition that exists for appropriate n…

[Phys. Rev. E 107, 014209] Published Tue Jan 17, 2023

]]>The present work investigates the effect of inertia on the entropy production rate $\mathrm{\Pi}$ for all canonical models of active particles for different dimensions and the type of confinement. To calculate $\mathrm{\Pi}$, the link between the entropy production and dissipation of heat rate is explored, resulting in a sim…

[Phys. Rev. E 107, 014604] Published Tue Jan 17, 2023

]]>We study the nanoscale patterns that form on the surface of a rotating sample of an elemental material that is bombarded with a broad noble gas ion beam for angles of incidence $\theta $ just above the critical angle for pattern formation ${\theta}_{c}$. The pattern formation depends crucially on the ion energy $E$. In s…

[Phys. Rev. E 107, 014801] Published Tue Jan 17, 2023

]]>Fluid-fluid interfaces, laden with polymers, surfactants, lipid bilayers, proteins, solid particles, or other surface-active agents, often exhibit a rheologically complex response to deformations. Despite its academic and practical relevance to fluid dynamics and various other fields of research, th…

[Phys. Rev. E 107, 015103] Published Tue Jan 17, 2023

]]>Finding extended hydrodynamics equations valid from the dense gas region to the rarefied gas region remains a great challenge. The key to success is to obtain accurate constitutive relations for stress and heat flux. Data-driven models offer a new phenomenological approach to learning constitutive r…

[Phys. Rev. E 107, 015104] Published Tue Jan 17, 2023

]]>Higher intensity of strong-coupling stimulated Brillouin scattering (SC-SBS) amplification is achieved by supplementary Raman amplification. In this scheme, a Raman pump laser first amplifies the seed pulse in the homogeneous plasma, and then a SC-SBS pump laser continues the amplification in the in…

[Phys. Rev. E 107, 015204] Published Tue Jan 17, 2023

]]>Saturable absorption is a nonlinear effect where a material's ability to absorb light is frustrated due to a high influx of photons and the creation of electron vacancies. Experimentally induced saturable absorption in copper revealed a reduction in the temporal duration of transmitted x-ray laser p…

[Phys. Rev. E 107, 015205] Published Tue Jan 17, 2023

]]>The free-energy model can extend the lattice Boltzmann method to multiphase systems. However, there is a lack of models capable of simulating multicomponent multiphase fluids with partial miscibility. In addition, existing models cannot be generalized to honor thermodynamic information provided by a…

[Phys. Rev. E 107, 015304] Published Tue Jan 17, 2023

]]>We apply the macroscopic fluctuation theory to analyze the long-time statistics of the position of a tracer in the dense and the dilute limits of diffusive single-file systems. Our explicit results are about the corresponding large deviation functions for an initial step density profile with the flu…

[Phys. Rev. E 107, L012101] Published Tue Jan 17, 2023

]]>When a fluctuating system is subjected to a time-dependent drive or nonconservative forces, the direct-inverse symmetry of the dynamics can be broken so inducing an average bias. Here we start from the fluctuation theorem, a cornerstone of stochastic thermodynamics, for inspecting the unbalancing be…

[Phys. Rev. E 107, 014112] Published Fri Jan 13, 2023

]]>We discuss the quantum dynamics of an isolated composite system consisting of weakly interacting many-body subsystems. We focus on one of the subsystems, $\mathcal{S}$, and study the dependence of its quantum correlations and decoherence rate on the state of the weakly-coupled complementary part $\mathcal{E}$, which repres…

[Phys. Rev. E 107, 014113] Published Fri Jan 13, 2023

]]>We show that homogeneous and nonhomogeneous states of the one-dimensional self-gravitating sheets models have different ergodic properties. The former are nonergodic and the one-particle distribution function has a zero collision term if a proper limit is taken for the periodic boundary conditions. …

[Phys. Rev. E 107, 014114] Published Fri Jan 13, 2023

]]>Using the transfer matrix technique, we estimate the entropy for a gas of rods of sizes equal to $k$ (named $k$-mers), which cover completely a square lattice. Our calculations were made considering three different constructions, using periodical and helical boundary conditions. One of those constructio…

[Phys. Rev. E 107, 014115] Published Fri Jan 13, 2023

]]>Nematic ordering, where the spins globally align along a spontaneously chosen axis irrespective of direction, occurs in spin-glass systems of classical Heisenberg spins in $d=3$. In this system where the nearest-neighbor interactions are quenched randomly ferromagnetic or antiferromagnetic, instead of…

[Phys. Rev. E 107, 014116] Published Fri Jan 13, 2023

]]>Tensor-network methods are used to perform a comparative study of the two-dimensional classical Heisenberg and ${\mathrm{RP}}^{2}$ models. We demonstrate that uniform matrix product states (MPSs) with explicit $\mathrm{SO}\left(3\right)$ symmetry can probe correlation lengths up to $\mathrm{O}\left({10}^{3}\right)$ sites accurately, and we study the scaling of en…

[Phys. Rev. E 107, 014117] Published Fri Jan 13, 2023

]]>Chemically active systems such as living cells are maintained out of thermal equilibrium due to chemical events which generate heat and lead to active fluctuations. A key question is to understand on which time and length scales active fluctuations dominate thermal fluctuations. Here, we formulate a…

[Phys. Rev. E 107, 014118] Published Fri Jan 13, 2023

]]>We investigate the structure and activated dynamics of a binary mixture of colloidal particles dispersed in a solvent of much smaller-sized particles. The solvent degrees of freedom are traced out from the grand partition function of the colloid-solvent mixture which reduces the system from ternary …

[Phys. Rev. E 107, 014119] Published Fri Jan 13, 2023

]]>Scanning tunneling microscopy experiments have revealed a spontaneous rippled-to-buckled transition in heated graphene sheets, in absence of any mechanical load. Several models relying on a simplified picture of the interaction between elastic and internal, electronic, degrees of freedom have been p…

[Phys. Rev. E 107, 014120] Published Fri Jan 13, 2023

]]>In finite-dimensional, chaotic, Lorenz-like wave-particle dynamical systems one can find diffusive trajectories, which share their appearance with that of laminar chaotic diffusion [Phys. Rev. Lett. **128**, 074101 (2022)] known from delay systems with lag-time modulation. Applying, however, to such sys…

[Phys. Rev. E 107, 014208] Published Fri Jan 13, 2023

]]>We measure different contributions to entropy production in a living functional epithelial tissue. We do this by extracting the functional dynamics of development while at the same time quantifying fluctuations. Using the translucent *Drosophila melanogaster* pupal epithelium as an ideal tissue for hi…

[Phys. Rev. E 107, 014403] Published Fri Jan 13, 2023

]]>High-resolution calorimetry has played a significant role in providing detailed information on phase transitions in liquid crystals. In particular, adiabatic scanning calorimetry (ASC), capable of providing simultaneous information on the temperature dependence of the specific enthalpy $h\left(T\right)$ and on t…

[Phys. Rev. E 107, 014701] Published Thu Jan 12, 2023

]]>Using a simplified model for a non-Brownian suspension, we numerically study the response of athermal, overdamped, frictionless disks in two dimensions to isotropic and uniaxial compression, as well as to pure and simple shearing, all at finite constant strain rates $\stackrel{\u0307}{\epsilon}$. We show that isotropic and un…

[Phys. Rev. E 107, 014901] Published Thu Jan 12, 2023

]]>Electron-proton energy relaxation rates are assessed using molecular dynamics (MD) simulations in weakly-coupled hydrogen plasmas. To this end, we use various approaches to extract the energy relaxation rate from MD-simulated temperatures, and we find that existing extracting approaches may yield re…

[Phys. Rev. E 107, 015203] Published Thu Jan 12, 2023

]]>We provide a deepened study of autocorrelations in neural Markov chain Monte Carlo (NMCMC) simulations, a version of the traditional Metropolis algorithm which employs neural networks to provide independent proposals. We illustrate our ideas using the two-dimensional Ising model. We discuss several …

[Phys. Rev. E 107, 015303] Published Thu Jan 12, 2023

]]>Diffusion through semipermeable interfaces has a wide range of applications, ranging from molecular transport through biological membranes to reverse osmosis for water purification using artificial membranes. At the single-particle level, one-dimensional diffusion through a barrier with constant per…

[Phys. Rev. E 107, 014110] Published Wed Jan 11, 2023

]]>The dissipation function for a system is defined as the natural logarithm of the ratio between probabilities of a trajectory and its time-reversed trajectory, and its probability distribution follows a well-known relation called the fluctuation theorem. Using the generic Langevin equations, we deriv…

[Phys. Rev. E 107, 014111] Published Wed Jan 11, 2023

]]>In this work, we use the basic ingredients of chaotic dynamics (stretching and folding of phase space points) for the characterization of the complexity of microscopy images of rough surfaces. The key idea is to use an image as the initial condition of a chaotic discrete dynamical system, such as th…

[Phys. Rev. E 107, 014206] Published Wed Jan 11, 2023

]]>A method is proposed to detect the dynamical instability of complex time series. We focus on how the partitioned entropy of an initially localized region of the attractor evolves in time and show that its growth rate corresponds to the first Lyapunov exponent. To avoid spurious detection of the dyna…

[Phys. Rev. E 107, 014207] Published Wed Jan 11, 2023

]]>Strongly confined colloidal dispersions under shear can exhibit a variety of dynamical phenomena, including depinning transitions and complex structural changes. Here, we investigate the behavior of such systems under pure oscillatory shearing with shear rate $\stackrel{\u0307}{\gamma}\left(t\right)={\stackrel{\u0307}{\gamma}}_{0}cos\left(\omega t\right)$, as it is a common scen…

[Phys. Rev. E 107, 014603] Published Wed Jan 11, 2023

]]>The energy diffusion process in a few two-dimensional Fermi-Pasta-Ulam-type lattices is numerically simulated via the equilibrium local energy spatiotemporal correlation. Just as the nonlinear fluctuating hydrodynamic theory suggested, the diffusion propagator consists of a bell-shaped central heat …

[Phys. Rev. E 107, 014109] Published Tue Jan 10, 2023

]]>Deformable nanoparticles (NPs) offer unprecedented opportunities as dynamic building blocks that can spontaneously reconfigure during assembly in response to environmental cues. Designing reconfigurable materials based on deformable NPs hinges on an understanding of the shapes that can be engineered…

[Phys. Rev. E 107, 014502] Published Tue Jan 10, 2023

]]>The Brownian motion of a single particle is a paradigmatic model of the nonequilibrium dynamics of dissipative systems. In the system-plus-reservoir approach, one can derive the particle's equations of motion from the reversible dynamics of the system coupled to a bath of oscillators representing it…

[Phys. Rev. E 107, 014107] Published Mon Jan 09, 2023

]]>Master equations under appropriate assumptions are efficient tools for the study of open quantum systems. For many-body systems, subsystems of which locally couple to thermal baths and weakly interact with each other, the local approach provides a more convenient description than the global approach…

[Phys. Rev. E 107, 014108] Published Mon Jan 09, 2023

]]>Microswimmers exhibit more diverse behavior in quasi-two dimensions than in three dimensions. Such behavior remains elusive due to the analytical difficulty of dealing with two parallel solid boundaries. The existence of additional obstacles in quasi-two dimensional systems further complicates the a…

[Phys. Rev. E 107, 014602] Published Mon Jan 09, 2023

]]>By (i) highlighting the mitigation effect of strain rates on laminar flame instabilities and (ii) comparing peak growth rates of laminar flame instabilities with strain rates generated by small-scale turbulent eddies, a simple criterion of importance of the influence of the instabilities on an incre…

[Phys. Rev. E 107, 015102] Published Mon Jan 09, 2023

]]>In order to understand how close current layered implosions in indirect-drive inertial confinement fusion are to ignition, it is necessary to measure the level of alpha heating present. To this end, pairs of experiments were performed that consisted of a low-yield tritium–hydrogen–deuterium (THD) la…

[Phys. Rev. E 107, 015202] Published Mon Jan 09, 2023

]]>The lattice Boltzmann method (LBM) has been developed as a powerful solution method in computational fluid dynamics and heat transfer. However, the development of the LBM for solving radiative transfer problems has been far from perfect. This paper proposes a generalized form of the lattice Boltzman…

[Phys. Rev. E 107, 015302] Published Mon Jan 09, 2023

]]>A system with an equal number of positive and negative charges confined in a box with a small but finite thickness is modeled as a function of temperature using mesoscale numerical simulations for various values of the charges. The Coulomb interaction is used in its three-dimensional form, $U\left(r\right)\sim 1/r$.…

[Phys. Rev. E 107, 014104] Published Fri Jan 06, 2023

]]>Here we study standard and higher-order birth-death processes on fully connected networks, within the perspective of large-deviation theory [also referred to as the Wentzel-Kramers-Brillouin (WKB) method in some contexts]. We obtain a general expression for the leading and next-to-leading terms of t…

[Phys. Rev. E 107, 014105] Published Fri Jan 06, 2023

]]>Traditional stochastic modeling of reactive systems limits the domain of applicability of the associated path thermodynamics to systems involving a single elementary reaction at the origin of each observed change in composition. An alternative stochastic modeling has recently been proposed to overco…

[Phys. Rev. E 107, 014106] Published Fri Jan 06, 2023

]]>A type of chaos called laminar chaos was found in singularly perturbed dynamical systems with periodic time-varying delay [Phys. Rev. Lett. **120**, 084102 (2018)]. It is characterized by nearly constant laminar phases, which are periodically interrupted by irregular bursts, where the intensity levels o…

[Phys. Rev. E 107, 014205] Published Fri Jan 06, 2023

]]>Cells are dynamic systems characterized by temporal variations in biophysical properties such as stiffness and contractility. Recent studies show that the recruitment and release of actin filaments into and out of the cell cortex—a network of proteins underneath the cell membrane—leads to cell stiff…

[Phys. Rev. E 107, 014401] Published Fri Jan 06, 2023

]]>When a system is in equilibrium, external perturbations yield a time series of nonequilibrium distributions, and recent experimental techniques give access to the nonequilibrium data that may contain critical information. Jinwoo and Tanaka [Sci. Rep. **5**, 7832 (2015)] have provided mathematical proof …

[Phys. Rev. E 107, 014402] Published Fri Jan 06, 2023

]]>We study a classical model of thermally fluctuating polymers confined to two dimensions, experiencing a grooved periodic potential, and subject to pulling forces both along and transverse to the grooves. The equilibrium polymer conformations are described by a mapping to a quantum system with a non-…

[Phys. Rev. E 107, 014501] Published Fri Jan 06, 2023

]]>We experimentally investigate the microfluidic flow of oil-in-water nanoemulsions in aqueous sodium dodecyl sulfate (SDS) solutions having different concentrations and injection flow rates. A coaxial microfluidic device is employed to explore the behavior of nanoemulsion threads in these sheathing S…

[Phys. Rev. E 107, 015101] Published Fri Jan 06, 2023

]]>The single-component multiphase fluids can be described by a single equation of state (EOS), and various EOSs have been employed in the multiphase lattice Boltzmann (LB) method. In this work, we revisit five commonly used EOSs, including the van der Waals EOS, the Redlich-Kwong EOS, the Redlich-Kwon…

[Phys. Rev. E 107, 015301] Published Fri Jan 06, 2023

]]>The macroscopic hydrodynamic equations are derived for many-body systems in the local-equilibrium approach, using the Schrödinger picture of quantum mechanics. In this approach, statistical operators are defined in terms of microscopic densities associated with the fundamentally conserved quantities…

[Phys. Rev. E 107, 014102] Published Thu Jan 05, 2023

]]>Accelerating controlled thermodynamic processes requires an auxiliary Hamiltonian to steer the system into instantaneous equilibrium states. An extra energy cost is inevitably needed in such finite-time operation. We recently developed a geodesic approach to minimize such energy cost for the shortcu…

[Phys. Rev. E 107, 014103] Published Thu Jan 05, 2023

]]>The nonequilibrium Fokker-Planck dynamics in an arbitrary force field $\stackrel{\u20d7}{f}\left(\stackrel{\u20d7}{x}\right)$ in dimension $N$ is revisited via the correspondence with the non-Hermitian quantum mechanics in a real scalar potential $V\left(\stackrel{\u20d7}{x}\right)$ and in a purely imaginary vector potential $[-i\stackrel{\u20d7}{A}\left(\stackrel{\u20d7}{x}\right)]$ of real amplitude $\stackrel{\u20d7}{A}\left(\stackrel{\u20d7}{x}\right)$. The relevant param…

[Phys. Rev. E 107, 014101] Published Wed Jan 04, 2023

]]>The well known nonlinear fluctuating hydrodynamics theory has grouped diffusions in anharmonic chains into two universality classes: one is the Kardar-Parisi-Zhang (KPZ) class for chains with either asymmetric potential or nonzero static pressure and the other is the Gaussian class for chains with s…

[Phys. Rev. E 107, 014204] Published Wed Jan 04, 2023

]]>Experiment, theory, and simulation are employed to understand the dispersion of colloidal particles in a periodic array of oscillating harmonic traps generated by optical tweezers. In the presence of trap oscillation, a nonmonotonic and anisotropic dispersion is observed. Surprisingly, the stiffest …

[Phys. Rev. E 107, 014601] Published Wed Jan 04, 2023

]]>We report here the results of comprehensive plasma characterization and diagnostics by analyzing time-resolved absorption spectra of short ultrabroadband (0.1–50 THz) pulses propagated through the test plasma. Spectral analysis of plasma-induced absorption of such THz pulses provides very direct, *in…*

[Phys. Rev. E 107, 015201] Published Wed Jan 04, 2023

]]>A long-standing expectation is that two repulsively coupled oscillators tend to oscillate in opposite directions. It has been difficult to achieve complete synchrony in coupled identical oscillators with purely repulsive coupling. Here, we introduce a general coupling condition based on the linear m…

[Phys. Rev. E 107, 014201] Published Tue Jan 03, 2023

]]>We identify a class of potentials for which the scattering of flat-top solitons and thin-top solitons of the nonlinear Schrödinger equation with dual nonlinearity can be reflectionless. The scattering is characterized by sharp resonances between regimes of full transmission and full quantum reflecti…

[Phys. Rev. E 107, 014202] Published Tue Jan 03, 2023

]]>We develop a rigorous theory of external influences on finite discrete dynamical systems, going beyond the perturbation paradigm, in that the external influence need not be a small contribution. Indeed, the covariance condition can be stated as follows: If we evolve the dynamical system for $n$ time s…

[Phys. Rev. E 107, 014203] Published Tue Jan 03, 2023

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