A global optimization method for Landau gauge fixing in Lattice QCD
Abstract
An algorithm for gauge fixing to the minimal Landau gauge in lattice QCD is described. The method, a combination of an evolutionary algorithm with a steepest descent method, is able to solve the problem of the nonperturbative gauge fixing. The performance of the combined algorithm is investigated on 84, β = 5.7, and 164, β = 6.0, lattice SU(3) gauge configurations.
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