Publikationsdatum:
2014-02-26
Beschreibung:
We study the performance of QCD simulations with dynamical Wilson fermions by combining the Hybrid Monte Carlo algorithm with parallel tempering on $10^4$ and $12^4$ lattices. In order to compare tempered with standard simulations, covariance matrices between sub-ensembles have to be formulated and evaluated using the general properties of autocorrelations of the parallel tempering algorithm. We find that rendering the hopping parameter $\kappa$ dynamical does not lead to an essential improvement. We point out possible reasons for this observation and discuss more suitable ways of applying parallel tempering to QCD.
Schlagwort(e):
ddc:000
Sprache:
Englisch
Materialart:
reportzib
,
doc-type:preprint
Format:
application/postscript
Format:
application/postscript
Format:
application/pdf