Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2010-12-15
Physics
Condensed Matter
Statistical Mechanics
25 pages
Scientific paper
We consider a non-equilibrium three-state model whose dynamics is Markovian and displays the same symmetry as the three-state Potts model, i.e., the transition rates are invariant under the permutation of the states. Unlike the Potts model, detailed balance is in general not satisfied. The aging and the stationary properties of the model defined on a square lattice are obtained by means of large-scale Monte Carlo simulations. We show that the phase diagram presents a critical line, belonging to the three-state Potts universality class, that ends at a point whose universality class is that of the voter model. Aging is considered on the critical line, at the voter point and in the ferromagnetic phase.
Chatelain Christophe
de Oliveira Mario Jose
Tomé Tânia
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