A global optimization method for Landau gauge fixing in Lattice QCD

نویسندگان

  • O. Oliveira
  • P. J. Silva
چکیده

An algorithm for gauge fixing to the Landau gauge in the fundamental modular region 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 8, β = 5.7, and 16, β = 6.0, lattice SU(3) gauge configurations. Lattice QCD, Landau Gauge, Gauge Fixing, Gribov Copies PACS: 12.38.G, 11.15.H

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تاریخ انتشار 2008