A Monte-Carlo Calculation of the Renormalized Coupling Constant for the Three Dimensional Ising Model Using Improved Estimators
Improved estimators for the second partial of the susceptibility and the correlation length are developed in the context of the Swendsen-Wang algorithm. These estimators have much improved convergence properties. We report Monte Carlo calculations for the renormalized coupling constant for a series of system sizes and temperatures such that the ratio of the correlation length to the system size is about one-tenth. This ratio is small enough so our results can be expected to approximate the thermodynamic limit within a per cent or better. Our results strongly support hyperscaling.
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