Critical behavior and out-of-equilibrium dynamics of a two-dimensional Ising model with dynamic couplings
| Autor: | F. Romá, Sebastian Bustingorry, Oscar Alejandro Pinto |
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| Rok vydání: | 2014 |
| Předmět: |
DYNAMICS
Physics Majority rule Statistical Mechanics (cond-mat.stat-mech) Ciencias Físicas FOS: Physical sciences Renormalization group Condensed Matter - Soft Condensed Matter Condensed Matter Physics Electronic Optical and Magnetic Materials Ferromagnetism GLASSES SIMULATION Continuous phase transition Antiferromagnetism Soft Condensed Matter (cond-mat.soft) Ising model Statistical physics CIENCIAS NATURALES Y EXACTAS Monte Carlo algorithm Condensed Matter - Statistical Mechanics Física de los Materiales Condensados Entropy (order and disorder) |
| DOI: | 10.48550/arxiv.1412.3087 |
| Popis: | 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. Comment: 10 pages with 12 figures |
| Databáze: | OpenAIRE |
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