Surface modes and parity violation in Schwinger model on the lattice

Details Surface modes and parity violation in Schwinger model on the lattice Surface modes and parity violation in Schwinger model on the lattice

1995-09-27

arxiv.org/abs/hep-lat/9509089v1

Nucl.Phys.Proc.Suppl. 47 (1996) 683-686

Physics

High Energy Physics

High Energy Physics - Lattice

4 pages, uuencoded compressed PostScript (using uufiles), contribution to LATTICE 95

Scientific paper

10.1016/0920-5632(96)00150-8

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.

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