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Worm algorithms for the 3-state Potts model with magnetic field and chemical potential (1202.4293v1)
Published 20 Feb 2012 in hep-lat and cond-mat.other
Abstract: We discuss worm algorithms for the 3-state Potts model with external field and chemical potential. The complex phase problem of this system can be overcome by using a flux representation where the new degrees of freedom are dimer and monomer variables. Working with this representation we discuss two different generalizations of the conventional Prokof'ev-Svistunov algorithm suitable for Monte Carlo simulations of the model at arbitrary chemical potential and evaluate their performance.
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