A soluble gauge model with Gribov-type copies

A soluble gauge model is presented which can exhibit the typical characteristics of Gribov's gauge-equivalent copies that exist in the Coulomb gauge of QCD. From the explicit solutions of the model, we show that correct results can be obtained by including all such copies, both in the Hamiltonian approach using Schrodinger wave functions and in the path-integration formalism using Feynman rules. This leads to an alternative proposal on how to resolve the complications of gauge-equivalent copies different From the one suggested by Gribov. (C) 1996 Academic Press, Inc.