Lorentz gauge fixing and the Gribov problem: the fermion correlator in lattice compact QED with Wilson fermions
Abstract
For the Lorentz gauge the influence of Gribov copies on the fermion propagator is investigated in quenched lattice compact QED. In the Coulomb phase zero-momentum modes of the gauge fields are shown to be the main reason for a significant deviation from ordinary perturbation theory.
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