Noisy Monte Carlo revisited

T. Bakeyev , Ph. de Forcrand

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classification ✦ hep-lat cond-mat

keywords algorithmcarlomonteactionalmostapplicationsavoidscomputation

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We present an exact Monte Carlo algorithm designed to sample theories where the energy is a sum of many couplings of decreasing strength. Our algorithm, simplified from that of L. Lin et al. hep-lat/9905033, avoids the computation of almost all non-leading terms. We illustrate its use by simulating SU(2) lattice gauge theory with a 5-loop action, and discuss further applications to full QCD.

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Noisy Monte Carlo revisited

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