The Problem of Classical Limit in Quantum Cosmology: The effective action language
arXiv:gr-qc/9511069 · doi:10.1142/S0218271896000527
Abstract
The tool of functional averaging over some ``large'' diffeomorphisms is used to describe quantum systems with constraints, in particular quantum cosmology, in the language of quantum Effective Action. Simple toy models demonstrate a supposedly general phenomenon: the presence of a constraint results in ``quantum repel'' from the classical mass shell.
arXiv comment16 pages, Latex, Report at the seminar ``Quantum Gravity. In Memory of Academician Moisei Markov'', Moscow, June 12-19, 1995. To be published in World Scientific