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Phys. Rev. E 72, 057103 (2005) [4 pages]

Entropy production in the majority-vote model

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Leonardo Crochik and Tânia Tomé
Instituto de Física, Universidade de São Paulo, Caixa Postal 66318, 05315-970 São Paulo, São Paulo, Brazil

Received 19 August 2005; published 28 November 2005

We analyzed the entropy production in the majority-vote model by using a mean-field approximation and Monte Carlo simulations. The dynamical rules of the model do not obey detailed balance so that entropy is continuously being produced. This nonequilibrium stochastic model is known to have a critical behavior belonging to the universality class of the equilibrium Ising model. We show that the entropy production exhibits a singularity at the critical point whose exponent is estimated numerically.


©2005 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevE.72.057103
DOI: 10.1103/PhysRevE.72.057103
PACS: 05.70.Ln, 05.50.+q, 02.50.Ga

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