Semiclassical States in Quantum Cosmology: Bianchi I Coherent States

Simple item page
dc.creatorBolen, Brett
dc.creatorBombelli, Luca
dc.creatorCorichi, Alejandro
dc.date2004-04-01
dc.date2004-07-13
dc.date.accessioned2026-07-07T03:28:34Z
dc.date.available2026-07-07T03:28:34Z
dc.descriptionWe study coherent states for Bianchi type I cosmological models, as examples of semiclassical states for time-reparametrization invariant systems. This simple model allows us to study explicitly the relationship between exact semiclassical states in the kinematical Hilbert space and corresponding ones in the physical Hilbert space, which we construct here using the group averaging technique. We find that it is possible to construct good semiclassical physical states by such a procedure in this model; we also discuss the sense in which the original kinematical states may be a good approximation to the physical ones, and the situations in which this is the case. In addition, these models can be deparametrized in a natural way, and we study the effect of time evolution on an "intrinsic" coherent state in the reduced phase space, in order to estimate the time for this state to spread significantly.
dc.description21 pages, 1 figure; Version to be published in CQG; The discussion has been slightly reorganized, two references added, and some typos corrected
dc.identifierhttps://arxiv.org/abs/gr-qc/0404004
dc.identifierhttp://arxiv.org/abs/gr-qc/0404004
dc.identifierClass.Quant.Grav. 21 (2004) 4087-4106
dc.identifierdoi:10.1088/0264-9381/21/17/005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/34880
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleSemiclassical States in Quantum Cosmology: Bianchi I Coherent States
dc.typetext

Files

Collections

arXiv