Phase transitions and damage spreading in a nonequilibrium lattice gas model with mixed dynamic rules

M. Leticia Rubio Puzzo, Gustavo P. Saracco and Marisa A. Bab

Physica A: Statistical Mechanics and its Applications, 2016, vol. 444, issue C, 476-486

Abstract: Phase transitions and damage spreading for a lattice gas model with mixed driven lattice gas (DLG)–Glauber dynamics are studied by means of Monte Carlo simulations. In order to control the number of sites updated according to the nonconservative Glauber dynamics, a parameter pϵ[0,1] is defined. In this way, for p=0 the system corresponds to the DLG model with biased Kawasaki conservative dynamics, while for p=1 it corresponds to the Ising model with Glauber dynamics. The results obtained show that the introduction of nonconservative dynamics dramatically affects the behavior of the DLG model, leading to the existence of Ising-like phase transitions from fully occupied to disordered states. The short-time dynamics results suggest that this transition is second order for values of p=0.1 and p>0.6 and first order for 0.1Keywords: Monte Carlo simulations; Nonequilibrium systems; Phase transitions; Driven diffusive systems (search for similar items in EconPapers)
Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:444:y:2016:i:c:p:476-486

DOI: 10.1016/j.physa.2015.10.049

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