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BIBTEX RIS

Short-time dynamics of critical nonequilibrium spin models

1998; American Physical Society; Volume: 58; Issue: 4 Linguagem: Inglês

10.1103/physreve.58.4242

ISSN

1538-4519

Autores

Tânia Tomé, Mário J. de Oliveira,

Tópico(s)

Quantum many-body systems

Resumo

We study numerically the short-time critical dynamical behavior of a family of nonequilibrium models with up-down symmetry. Our numerical results show that these models, which include the Glauber dynamics as a particular case, present short-time universality. The exponent $\ensuremath{\theta}$ is calculated from the early time behavior of the time correlation of the total magnetization $〈m(t)m(0)〉$ by starting from an initial state with zero correlation length and zero magnetization.

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