Ydalia Delgado, Hans Gerd Evertz, Christof Gattringer
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.
View original:
http://arxiv.org/abs/1202.4293
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