Persistence in an antiferromagnetic Ising system with conserved magnetisation

Moumita Saharay and Parongama Sen

Physica A: Statistical Mechanics and its Applications, 2003, vol. 318, issue 1, 243-250

Abstract: We obtain the persistence exponents for an antiferromagnetic Ising system in which the magnetisation is kept constant. This system belongs to model C (system with non-conserved order parameter with a conserved density) and is expected to have persistence exponents different from that of model A (system with no conservation) but independent of the conserved density. Our numerical results for both local persistence at zero temperature and global persistence at the critical temperature however indicate that the exponents are dependent on the conserved magnetisation in both two and three dimensions. This non-universal feature is attributed to the presence of the conserved field and is special to the persistence phenomena.

Keywords: Persistence exponents; Local and global; Conservation; Non-universality (search for similar items in EconPapers)
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:318:y:2003:i:1:p:243-250

DOI: 10.1016/S0378-4371(02)01423-1

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