Vacuum structure of gauge theory on lattice with two parallel plaquette action

Research paper by K. Farakos, G. K. Savvidy

Indexed on: 29 Apr '99Published on: 29 Apr '99Published in: High Energy Physics - Lattice


We perform Monte Carlo simulations of a lattice gauge system with an action which contains two parallel plaquettes. The action is defined as a product of gauge group variables over two parallel plaquettes belonging to a given three-dimensional cube. The peculiar property of this system is that it has strong degeneracy of the vacuum state inherited from corresponding gonihedric $Z_2$ gauge spin system. These vacuua are well separated and can not be connected by a gauge transformation. We measure different observables in these vacuua and compare their properties.