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Acceptance rates in multigrid Monte Carlo simulations

Journal Article · · Physical Review, D (Particles Fields); (United States)
 [1];  [2]
  1. II. Institut fuer Theoretische Physik, Universitaet Hamburg, D-2000 Hamburg 50 (Germany)
  2. Institut fuer Theoretische Physik I, Universitaet Muenster, D-4400 Muenster (Germany)
An approximation formula is derived for acceptance rates of nonlocal Metropolis updates in simulations of lattice field theories. The predictions of the formula agree quite well with Monte Carlo simulations of two-dimensional sine-Gordon, {ital XY}, and {phi}{sup 4} models. The results are consistent with the following rule: For a critical model with a fundamental Hamiltonian {ital scrH}({phi}) sufficiently high acceptance rates for a complete elimination of critical slowing down can only be expected if the expansion of {l angle}{ital scrH}({phi}+{psi}){r angle} in terms of the shift {psi} contains no relevant term (mass term).
OSTI ID:
7184363
Journal Information:
Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 45:12; ISSN PRVDA; ISSN 0556-2821
Country of Publication:
United States
Language:
English