Does overrelaxed updating in lattice QCD improve critical slowing down?
Abstract
We study the autocorrelation time of blocked loops on 8 4, 16 4 and 32 4 lattices in pure SU(3) lattice gauge theory over a wide range of β(= 6/ g2) with high statistics. The critical exponent of integrated autocorrelation time by hybrid overrelaxation updating with fixed mixing ratio is found to be 1.74 ± 0.06. This suggests that the overrelaxation still suffer from critical slowing down toward the continuum limit.
- Publication:
-
Physics Letters B
- Pub Date:
- June 1994
- DOI:
- 10.1016/0370-2693(94)91498-2
- Bibcode:
- 1994PhLB..328..407A