1995/09/14 by A D Kennedy, Robert Edwards, Hidetoshi Mino +1 · 1 citation
Physics and Astronomy · #hep-lat
paper · pdf · doi:10.1016/0920-5632(96)00173-9
published as Nucl.Phys.Proc.Suppl. 47 (1996) 781-784 · 4 pages, to be published in the Proceedings of Lattice 95, uuencoded PostScript file
arxiv created 1995/09/14 · arxiv updated 2009/12/01
We discuss the analytic computation of autocorrelation functions for the generalized Hybrid Monte Carlo algorithm applied to free field theory and compare the results with numerical results for the O(4) spin model in two dimensions. We explain how the dynamical critical exponent z for some operators may be reduced from two to one by tuning the amount of randomness introduced by the updating procedure, and why critical slowing down is not a problem for other operators.