2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/147668An error in the gauge fixed quantization of section 3 is corrected. The result is a much simpler treatment of the clock field, leading to a simplification of the gauge fixed quantum theory and the treatment of the semiclassical limit.Latex, no figures, 57 pages, SU-GP-92/12-4General Relativity and Quantum CosmologyHigh Energy Physics - Theorytext