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Title: | Reaction-diffusion lattice gas: Theory and computer results |
Author: | Alonso Pereda, Juan José Marro, Joaquín, 1945- González-Miranda, J. M. (Jesús Manuel) |
Keywords: | Simulació per ordinador Processos irreversibles Termodinàmica del desequilibri Transformacions de fase (Física estadística) Computer simulation Irreversible processes Nonequilibrium thermodynamics Phase transformations (Statistical physics) |
Issue Date: | 1993 |
Publisher: | The American Physical Society |
Abstract: | We report on the study of nonequilibrium ordering in the reaction-diffusion lattice gas. It is a kinetic model that relaxes towards steady states under the simultaneous competition of a thermally activated creation-annihilation $(reaction$) process at temperature T, and a diffusion process driven by a heat bath at temperature T?T. The phase diagram as one varies T and T, the system dimension d, the relative priori probabilities for the two processes, and their dynamical rates is investigated. We compare mean-field theory, new Monte Carlo data, and known exact results for some limiting cases. In particular, no evidence of Landau critical behavior is found numerically when d=2 for Metropolis rates but Onsager critical points and a variety of first-order phase transitions. |
Note: | Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.47.885 |
It is part of: | Physical Review e, 1993, vol. 47, núm. 2, p. 885-898 |
URI: | http://hdl.handle.net/2445/18829 |
Related resource: | http://dx.doi.org/10.1103/PhysRevE.47.885 |
ISSN: | 1063-651X |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
Files in This Item:
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501966.pdf | 2.32 MB | Adobe PDF | View/Open |
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