Confinement and the photon propagator in 3D compact QED: a lattice study in Landau gauge at zero and finite temperature

Details Confinement and the photon propagator in 3D compact QED: a lattice study in Landau gauge at zero and finite temperature Confinement and the photon propagator in 3D compact QED: a lattice study in Landau gauge at zero and finite temperature

2002-08-08

arxiv.org/abs/hep-lat/0208013v4

Phys.Rev. D67 (2003) 034502

Physics

High Energy Physics

High Energy Physics - Lattice

25 pages, 32 figures, RevTeX 4; version in print in Phys. Rev. D; typos and figures 5c and 7c corrected

Scientific paper

10.1103/PhysRevD.67.034502

On the lattice we study the gauge boson propagator of three dimensional compact QED in Landau gauge at zero and non-zero temperature. The non-perturbative effects are taken into account by the generation of a mass, by an anomalous dimension and by the photon wave function renormalization. All these effects can be attributed to the monopoles: they are absent in the propagator of the singularity-free part of the gauge field. We assess carefully the Gribov copy problem for the propagator and the parameters emerging from the fits.

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