Compact QED in Landau gauge: A Lattice gauge fixing case study
May, 199318 pages
Published in:
- Phys.Rev.D 48 (1993) 3377-3382
e-Print:
- hep-lat/9305019 [hep-lat]
Report number:
- LSU-431-93
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Abstract:
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 {\it 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 the photon mass undergoes a rapid drop to zero at , the deconfinement point, this result predicts that Dirac strings must be sufficiently dilute at . Indeed, numerical simulations reveal that the string density undergoes a rapid drop to near zero at .- gauge field theory: U(1)
- lattice field theory
- Landau gauge
- quantum electrodynamics: compact
- gauge fixing
- vortex
- string: Dirac
- photon: propagator
- photon: mass
- mass: photon
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