Noise induced phase transition in the S-state block voter model

João M. de Araújo, Cesar I.N. Sampaio Filho and Francisco G.B. Moreira

Physica A: Statistical Mechanics and its Applications, 2018, vol. 508, issue C, 642-649

Abstract: We use Monte Carlo simulations and finite-size scaling theory to investigate the phase transition and critical behavior of the S-state block voter model on square lattices. Our numerical results indicate that the system exhibits an order–disorder phase transition at a given value of the noise parameter, which changes from a continuous transition for S≤4 to a discontinuous transition for S≥5. Moreover, for the cases of continuous transition, the calculated critical exponents indicate that the present studied nonequilibrium model system is in the same universality class of its counterpart equilibrium two-dimensional S-state Potts model. We also provide a first estimation of the long-range exponents governing the dependence on the range of interaction of the magnetization, the susceptibility, and the derivative of Binder’s cumulant.

Keywords: Scaling; Nonequilibrium phase transition; Monte Carlo simulations (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:508:y:2018:i:c:p:642-649

DOI: 10.1016/j.physa.2018.05.133

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