Revisiting the one-dimensional diffusive contact process
arXiv:0705.0317 · doi:10.1088/1742-5468/2007/08/P08009
Abstract
In this work we study the one-dimensional contact process with diffusion using two different approaches to research the critical properties of this model: the supercritical series expansions and finite-size exact solutions. With special emphasis we look to the multicritical point and its crossover exponent that characterizes the passage between DP and mean-field critical properties. This crossover occurs in the limit of infinite diffusion rate and our results pointed as the better estimate for the crossover exponent in agreement with computational simulations.