NPAC Technical Report SCCS-141

Empirical relations between static and dynamic exponents for Ising model cluster algorithms

P Coddington, C Baillie

Submitted December 01 1992


Abstract

We have measured the autocorrelations for the Swendsen-Wang and the Wolff cluster update algorithms for the Ising model in 2, 3 and 4 dimensions. The data for the Wolff algorithm suggest that the autocorrelations are linearly related to the specific heat, in which case the dynamic critical exponent ${z_{int,E}^{W} = \alpha / \nu}$. For the Swendsen-Wang algorithm, scaling the autocorrelations by the average maximum cluster size gives either a constant or a logarithm, which implies that ${z_{int,E}^{SW} = \beta / \nu}$ for the Ising model.


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