Critical behavior and out-of-equilibrium dynamics of a two-dimensional Ising model with dynamic couplings
We study the critical behavior and the out-of-equilibrium dynamics of a two-dimensional Ising model with non-static interactions. In our model, bonds are dynamically changing according to a majority rule depending on the set of closest neighbors of each spin pair, which prevents the system from ordering in a full ferromagnetic or antiferromagnetic state. Using a parallel-tempering Monte Carlo algorithm, we find that the model undergoes a continuous phase transition at finite temperature, which belongs to the Ising universality class. The properties of the bond structure and the ground-state entropy are also studied. Finally, we analyze the out-of-equilibrium dynamics which displays typical glassy characteristics at a temperature well below the critical one. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2014
Year of publication: |
2014
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Authors: | Pinto, Oscar ; Romá, Federico ; Bustingorry, Sebastian |
Published in: |
The European Physical Journal B - Condensed Matter and Complex Systems. - Springer. - Vol. 87.2014, 12, p. 1-10
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Publisher: |
Springer |
Subject: | Statistical and Nonlinear Physics |
Saved in:
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