Voter models with conserved dynamics.
Phys Rev E Stat Nonlin Soft Matter Phys
; 87(5): 052114, 2013 May.
Article
em En
| MEDLINE
| ID: mdl-23767494
ABSTRACT
We propose a modified voter model with locally conserved magnetization and investigate its phase ordering dynamics in two dimensions in numerical simulations. Imposing a local constraint on the dynamics has the surprising effect of speeding up the phase ordering process. The system is shown to exhibit a scaling regime characterized by algebraic domain growth, at odds with the logarithmic coarsening of the standard voter model. A phenomenological approach based on cluster diffusion and similar to Smoluchowski ripening correctly predicts the observed scaling regime. Our analysis exposes unexpected complexity in the phase ordering dynamics without thermodynamic potential.
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Assunto principal:
Termodinâmica
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Algoritmos
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Modelos Estatísticos
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Transição de Fase
Tipo de estudo:
Prognostic_studies
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Qualitative_research
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Risk_factors_studies
Idioma:
En
Revista:
Phys Rev E Stat Nonlin Soft Matter Phys
Ano de publicação:
2013
Tipo de documento:
Article