Heatbath Noise Methods in Lattice QCD

Details Heatbath Noise Methods in Lattice QCD Heatbath Noise Methods in Lattice QCD

2001-09-13

arxiv.org/abs/hep-lat/0109008v1

Nucl.Phys.Proc.Suppl. 106 (2002) 1064-1066

Physics

High Energy Physics

High Energy Physics - Lattice

Lattice 2001(algorithms)

Scientific paper

In a recent paper, de Forcrand has pointed out that matrix inversions using Gaussian noise need not be iterated to full convergence, but instead may be solved approximately and treated as a heatbath. Gaussian noise however is not optimal for minimizing variance. It shown here how his algorithm may be generalized to a mixture of Gaussian and Z(N) noise, resulting in a smaller effective variance for some operators.

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