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Critical behavior in reaction-diffusion systems exhibiting absorbing phase transitions

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dc.creator Ódor Géza
dc.date 2003
dc.date.accessioned 2013-06-01T10:26:34Z
dc.date.available 2013-06-01T10:26:34Z
dc.date.issued 2013-06-01
dc.identifier http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332003000300003
dc.identifier http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2003&volume=33&issue=3&spage=431
dc.identifier.uri http://koha.mediu.edu.my:8181/jspui/handle/123456789/8177
dc.description Phase transitions of reaction-diffusion systems with a site occupation restriction, particle creation requiring n > 2 parents, and in which explicit diffusion of single particles (A) is possible, are reviewed. Arguments based on mean-field approximation and simulations are given which support novel kind of nonequilibrium criticality. These are in contradiction with the implications of a suggested phenomenological, multiplicative noise Langevin equation approach and with some recent numerical analyses. Simulation results for one- and two-dimensional binary spreading model, 2A -> 4A, 4A -> 2A, reveal a new type of mean-field criticality characterized by the critical exponents a = 1/3 and b = 1/2, as suggested in a recent preprint [cond-mat/0210615]
dc.publisher Sociedade Brasileira de Física
dc.source Brazilian Journal of Physics
dc.title Critical behavior in reaction-diffusion systems exhibiting absorbing phase transitions

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