NPAC Technical Report SCCS-141

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

Paul D. Coddington and Clive F. Baillie

December 1992

Published in Phys. Rev. Lett. 68, 962 (1992).

© Copyright American Physical Society.


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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