arXiv:cond-mat/0208497 · Physical Review Letters
Absorbing Phase Transitions of Branching-Annihilating Random Walks
Julien Kockelkoren, Hugues Chaté
Abstract
The phase transitions to absorbing states of the branching-annihilating reaction-diffusion processes mA-->(m+k)A, nA-->(n-l)A are studied systematically in one space dimension within a new family of models. Four universality classes of nontrivial critical behavior are found. This provides, in particular, the first evidence of universal scaling laws for pair and triplet processes.