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Driven lattice gases serve as canonical models for investigating collective transport phenomena and properties of non-equilibrium steady states (NESS). Here we study one-dimensional transport with nearest-neighbor interactions both in…

统计力学 · 物理学 2013-08-13 Marcel Dierl , Mario Einax , Philipp Maass

We study the motion of phase interfaces in a diffusive lattice equation with bistable nonlinearity and derive a free boundary problem with hysteresis to describe the macroscopic evolution in the parabolic scaling limit. The first part of…

偏微分方程分析 · 数学 2015-03-03 Michael Helmers , Michael Herrmann

We study the relaxation process in a two-dimensional lattice gas model, where the interactions come from the excluded volume. In this model particles have three arms with an asymmetrical shape, which results in geometrical frustration that…

统计力学 · 物理学 2009-11-07 A. Diaz-Sanchez , Antonio de Candia , Antonio Coniglio

We revisit the associating lattice gas~(ALG) introduced by Henriques \textit{et al.} [PRE 71, 031504 (2005)] in its symmetric version. In this model, defined on the triangular lattice, interaction between molecules occupying…

统计力学 · 物理学 2021-12-16 Ingrid Ibagon , A. P. Furlan , T. J. Oliveira , Ronald Dickman

We study a very simple model of a short-range attraction and an outer shell repulsion as a test system for demixing phase transition and density anomaly. The phase-diagram is obtained by applying mean field analysis and Monte Carlo…

统计力学 · 物理学 2016-08-31 Alan B. de Oliveira , Marcia C. Barbosa

We study a lattice model describing the non-equilibrium dynamics emerging from the pulling of a tracer particle through a disordered medium occupied by randomly placed obstacles. The model is considered in a restricted geometry pertinent…

统计力学 · 物理学 2026-03-09 A. Squarcini , A. Tinti , P. Illien , O. Bénichou , T. Franosch

The dynamical evolution of a Bose-Einstein condensate trapped in a one-dimensional lattice potential is investigated theoretically in the framework of the Bose-Hubbard model. The emphasis is set on the far-from-equilibrium evolution in a…

其他凝聚态物理 · 物理学 2008-09-08 Kristan Temme , Thomas Gasenzer

Using Monte Carlo Simulation and fundamental measure theory we study the phase diagram of a two-dimensional lattice gas model with a nearest neighbor hard core exclusion and a next-to-nearest neighbors finite repulsive interaction. The…

软凝聚态物质 · 物理学 2012-02-02 Noe G. Almarza , Jose A. Capitan , Jose A. Cuesta , Enrique Lomba

We study three different lattice models in which two species of diffusing particles are driven in opposite directions by an electric field. We focus on dynamical phase transitions that involve phase separation into domains that may be…

统计力学 · 物理学 2022-09-15 Honghao Yu , Kristian Thijssen , Robert L. Jack

We study dynamical behaviors of one-dimensional stochastic lattice gases with repulsive interactions whose span can be arbitrary large. We endow the system with a zero-temperature dynamics, so that the hops to empty sites which would have…

统计力学 · 物理学 2015-06-15 P. L. Krapivsky

We use an extension of fundamental measure theory to lattice hard-core fluids to study the phase diagram of two different systems. First, two-dimensional parallel hard squares with edge-length $\sigma=2$ in a simple square lattice. This…

软凝聚态物质 · 物理学 2009-11-10 Luis Lafuente , Jose A. Cuesta

Athermal lattice gases of particles with first neighbor exclusion have been studied for a long time as simple models exhibiting a fluid-solid transition. At low concentration the particles occupy randomly both sublattices, but as the…

统计力学 · 物理学 2011-11-10 T. J. Oliveira , J. F. Stilck

We used the Density Functional formalism, in particular the Scaled Particle Theory, applied to a length-polydisperse hard-rectangular fluid to study its phase behavior as a function of the mean particle aspect ratio ($\kappa_0$) and…

软凝聚态物质 · 物理学 2017-05-23 Ariel Diaz-De Armas , Yuri Martinez-Raton

To be useful, steady state thermodynamics (SST) must be self-consistent and have predictive value. Although consistency of SST was recently verified for driven lattice gases under global weak exchange, I show here that it does not predict…

统计力学 · 物理学 2014-07-31 Ronald Dickman

We have studied the extended Hubbard model with pair hopping in the atomic limit for arbitrary electron density and chemical potential. The Hamiltonian considered consists of (i) the effective on-site interaction U and (ii) the intersite…

强关联电子 · 物理学 2012-05-01 Konrad Kapcia , Stanisław Robaszkiewicz , Roman Micnas

We study numerically an inhomogeneous Ising lattice gas with short-range interactions where different sectors are in contact with thermal baths at different temperatures. Inside the different sectors particles jump to empty sites following…

统计力学 · 物理学 2012-05-09 Linjun Li , Michel Pleimling

This is the third in a series of three papers in which we study a two-dimensional lattice gas consisting of two types of particles subject to Kawasaki dynamics at low temperature in a large finite box with an open boundary. Each pair of…

概率论 · 数学 2015-06-05 Frank den Hollander , Francesca Romana Nardi , Alessio Troiani

We propose a modification to the study of site-wise dynamically disordered totally asymmetric simple exclusion process (TASEP). Motivated by the process of gene transcription, a study in ref. \cite{waclaw2019totally} introduced an extension…

统计力学 · 物理学 2024-05-13 Nikhil Bhatia , Arvind Kumar Gupta

We prove the dynamical large deviations for a particle system in which particles may have different velocities. We assume that we have two infinite reservoirs of particles at the boundary: this is the so-called boundary driven process. The…

概率论 · 数学 2010-06-02 Jonathan Farfan , Alexandre B. Simas , Fabio J. Valentim

We analyze the combined effect of the long range Coulomb (LRC) interaction and of surface energy on first order density-driven phase transitions in the presence of a compensating rigid background. We study mixed states formed by regions of…

强关联电子 · 物理学 2009-10-31 J. Lorenzana , C. Castellani , C. Di Castro