Competitive nucleation in reversible Probabilistic Cellular Automata

Emilio N. M. Cirillo, Cristian Spitoni, Francesca R. Nardi

Published 2009-07-03Version 1

The problem of competitive nucleation in the framework of Probabilistic Cellular Automata is studied from the dynamical point of view. The dependence of the metastability scenario on the self--interaction is discussed. An intermediate metastable phase, made of two flip--flopping chessboard configurations, shows up depending on the ratio between the magnetic field and the self--interaction. A behavior similar to the one of the stochastic Blume--Capel model with Glauber dynamics is found.