title: Competitive nucleation in reversible probabilistic cellular automata.
abstract: 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.
authors.affiliation: Dipartimento Me. Mo. Mat., Università degli Studi di Roma La Sapienza, via A. Scarpa 16, Rome, Italy.
authors.forename: Emilio N M
authors.initials: EN
authors.lastname: Cirillo
authors.forename: Francesca R
authors.initials: FR
authors.lastname: Nardi
authors.forename: Cristian
authors.initials: C
authors.lastname: Spitoni