Dependence of the crossover exponent with the diffusion rate in the generalized contact process model

AUTOR(ES)
FONTE

Brazilian Journal of Physics

DATA DE PUBLICAÇÃO

2008-03

RESUMO

We study how the crossover exponent, phi, between the directed percolation (DP) and compact directed percolation (CDP) behaves as a function of the diffusion rate in a model that generalizes the contact process. Our conclusions are based in results pointed by perturbative series expansions and numerical simulations, and are consistent with a value phi = 2 for finite diffusion rates and phi = 1 in the limit of infinite diffusion rate.

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