Monopoles, confinement and the photon propagator in QED$_3$
arXiv:hep-lat/0208028 · doi:10.1016/S0920-5632(03)80462-0
Abstract
We study the lattice gauge boson propagator of 3D compact QED in Landau gauge at zero and non-zero temperature. Non-perturbative effects are reflected by the generation of a mass $m$, by an anomalous dimension $α$ and by the photon wave function renormalisation $Z$. These effects can be attributed to monopoles: they are absent in the propagator of the regular part of the gauge field. The rôle of Gribov copies is carefully investigated.
3 pages, 5 figures, Lattice2002(topology)