Decorrelating the topology in full QCD
arXiv:hep-lat/9608123 · doi:10.1016/S0920-5632(96)00713-X
Abstract
We investigate the performance of the hybrid Monte Carlo algorithm in updating non-trivial global topological structures. We find that the hybrid Monte Carlo algorithm has serious problems decorrelating the global topological charge. This represents a warning which must be seriously considered when simulating full QCD, regardless of the number and type of fermions, with this or any similar algorithm. Simulated tempering is examined as a means of accelerating the decorrelation.
Talk presented at LATTICE96(topology) LaTeX2e, uses espcrc2.sty (included), amstex package. 3 pages, 1 figure