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Compact QED in the Landau gauge: A lattice-gauge-fixing case study
Physical Review D, Particles and fields
We derive different representations of compact QED fixed to Landau gauge by the lattice Faddeev-Popov procedure. Our analysis finds that (A)Nielsen-Olesen vortices arising from the compactness of the gauge-fixing action are quenched, that is, the Faddeev-Popov determinant cancels them out and they do not influence correlation functions such as the photon propagator; (B)Dirac strings are responsible for the nonzero mass pole of the photon propagator. Since in D=3+1 the photon mass undergoes adoi:10.1103/physrevd.48.3377 pmid:10016595 fatcat:hvxkgzzkebfzxfsat7k2kqb2me