Boundary-induced nonequilibrium phase transition into an absorbing state.
We demonstrate that absorbing phase transitions in one dimension may be induced by the dynamics of a single site. As an example, we consider a one-dimensional model of diffusing particles, where a single site at the boundary evolves according to the dynamics of a contact process. As the rate for offspring production at this site is varied, the model exhibits a phase transition from a fluctuating active phase into an absorbing state. The universal properties of the transition are analyzed by numerical simulations and approximation techniques.
Barato
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Universität Würzburg, Fakultät für Physik und Astronomie, 97074 Würzburg, Germany.
Hinrichsen
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