%0 Journal Article %T Critical Properties of Stochastic Cellular Automata} %A Stam Nicolis %J Physics %D 1994 %I arXiv %X We study the effect of mixing two rules on the dynamics of one-dimensional cellular automata by large scale numerical simulations. We calculate the decay of the magnetization for the Domany-Kinzel automaton (XOR/AND mixing) to its equilibrium value in the three phases. This requires system sizes in excess of 1 million sites. We also find severe finite size effects near the new critical points recently proposed on the basis of transfer matrix arguments. %U http://arxiv.org/abs/cond-mat/9406005v1