Possible Constraints on the Duration of Inflationary Expansion from Quantum Stress Tensor Fluctuations

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dc.creatorWu, Chun-Hsien
dc.creatorNg, Kin-Wang
dc.creatorFord, L. H.
dc.date2006-07-31
dc.date2007-04-27
dc.date.accessioned2026-07-07T10:24:25Z
dc.date.available2026-07-07T10:24:25Z
dc.descriptionWe discuss the effect of quantum stress tensor fluctuations in deSitter spacetime upon the expansion of a congruence of timelike geodesics. We treat a model in which the expansion fluctuations begin on a given hypersurface in deSitter spacetime, and find that this effect tends to grow, in contrast to the situation in flat spacetime. This growth potentially leads to observable consequences in inflationary cosmology in the form of density perturbations which depend upon the duration of the inflationary period. In the context of our model, the effect may be used to place upper bounds on this duration.
dc.description21 pages, no figures; Sect. IV rewritten and expanded, several comments and references added
dc.identifierhttps://arxiv.org/abs/gr-qc/0608002
dc.identifierhttp://arxiv.org/abs/gr-qc/0608002
dc.identifierPhys.Rev.D75:103502,2007
dc.identifierdoi:10.1103/PhysRevD.75.103502
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176177
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titlePossible Constraints on the Duration of Inflationary Expansion from Quantum Stress Tensor Fluctuations
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