SU(3) LATTICE GAUGE AUTOCORRELATIONS WITH ANISOTROPIC ACTION

We report results of autocorrelation measurements in pure SU(3) lattic e gauge theory. The computations are performed on the CONVEX sPP1200 p arallel platform within the CANOPY programming environment. The focus of our analysis is on typical autocorrelation times and optimization o f the mixing ratio between overrelaxation and pseudo-heatbath sweeps f or generating gauge field configurations. We study second order tadpol e-improved approximations of the Wilson action in the gluon sector, wh ich offers the advantage of working on smaller lattices (8(3)x16 and 6 (3)x12-30). We also make use of anisotropic lattices, with temporal la ttice spacing smaller than the spatial spacing, which prove useful for calculating noisy correlation functions with large spatial lattice di scretization (of the order of 0.4 fm).