Abstract
The critical behavior of the entropy production rate is analyzed for lattice models defined to be invariant under transformations comprising the symmetry group , and irreversible dynamically as well. A stochastic approach is followed, considering Markovian processes in continuous time, and therefore assuming a master equation representation for the time evolution of the probability distribution of states. The quantitative analysis is mostly supported by results from Monte Carlo simulations, which revealed a divergent behavior in the derivative of the entropy production at the critical point. This divergence is characterized by the critical exponent , in close analogy with the critical behavior of the specific heat of the three-state Potts model, supporting with it the conjecture stating that the class of universality of a system is not directly affected by its reversibility conditions.
Published Version
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