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Título:
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Reaction-diffusion lattice gas: Theory and computer results
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Autor/a:
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Alonso Pereda, Juan José; Marro, Joaquín; González-Miranda, J. M. (Jesús Manuel)
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Otros autores:
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Universitat de Barcelona |
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Abstract:
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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. |
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Materia(s):
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-Simulació per ordinador
-Processos irreversibles
-Termodinàmica del desequilibri
-Transformacions de fase (Física estadística)
-Computer simulation
-Irreversible processes
-Nonequilibrium thermodynamics
-Phase transformations (Statistical physics) |
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Derechos:
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(c) American Physical Society, 1993
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Tipo de documento:
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Artículo
Artículo - Versión publicada |
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Editor:
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The American Physical Society
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Compartir:
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