An Exact Local Hybrid Monte Carlo Algorithm for Gauge Theories

Details An Exact Local Hybrid Monte Carlo Algorithm for Gauge Theories An Exact Local Hybrid Monte Carlo Algorithm for Gauge Theories

1993-11-16

arxiv.org/abs/hep-lat/9311017v1

Nucl.Phys.Proc.Suppl. 34 (1994) 786-788

Physics

High Energy Physics

High Energy Physics - Lattice

FSU-SCRI-93-137, 6pp, Postscript

Scientific paper

10.1016/0920-5632(94)90514-2

We introduce a new Monte Carlo method for pure gauge theories. It is not intended for use with dynamical fermions. It belongs to the class of Local Hybrid Monte Carlo (LHMC) algorithms, which make use of the locality of the action by updating individual sites or links by following a classical mechanics trajectory in fictitious time. We choose to update a one-parameter subgroup of the gauge field on each link of the lattice, and the classical trajectory can be found in closed form in terms of elliptic functions for this case. We show that this gives an overrelaxation algorithm with a tunable parameter which, unlike some previous methods, does not require the numerical integration of the equations of motion.

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