Phys. Rev. A 39, 5949–5953 (1989)Mean-field study of the Swendsen-Wang dynamicsReceived 5 December 1988; published in the issue dated June 1989 Nonuniversal dynamics introduced by Swendsen and Wang [Phys. Rev. Lett. 58, 86 (1987)] is studied in a mean-field Ising model. Numerical simulation data indicate that z, the dynamical critical exponent, is 0.98±0.08. A modified version of this dynamics in which only large clusters are flipped apparently gives the same exponent, although the amplitude is reduced by a factor of 1/2. In addition, a theoretical argument is presented which gives z=1 and provides insight into the dynamics. © 1989 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.39.5949
DOI:
10.1103/PhysRevA.39.5949
PACS:
64.60.Fr
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