Surface modes and parity violation in Schwinger model on the lattice
arXiv:hep-lat/9509089 · doi:10.1016/0920-5632(96)00150-8
Abstract
The phase diagram of the Schwinger model on the lattice with Wilson fermions is investigated in the Hartree-Fock approximation. In case of single flavour (not directly amenable to simulations), the calculation indicates the existence of the parity violating phase at both weak and intermediate-to-strong couplings. Hartree-Fock vacuum sustains a nonzero electric field in this broken phase. The phase structure of the model with two flavours is also discussed.
4 pages, uuencoded compressed PostScript (using uufiles), contribution to LATTICE 95