An Inflationary Non-singular Quantum Cosmological Model

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dc.creatorFalciano, Felipe T.
dc.creatorPinto-Neto, Nelson
dc.creatorSantini, E. Sergio
dc.date2007-07-09
dc.date2007-09-11
dc.date.accessioned2026-07-07T11:17:37Z
dc.date.available2026-07-07T11:17:37Z
dc.descriptionA stiff matter-dominated universe modeled by a free massless scalar field minimally coupled to gravity in a Friedmann-Lema\^ıtre-Robertson-Walker (FLRW) geometry is quantized. Generalized complex-width gaussian superpositions of the solutions of the Wheeler-DeWitt equation are constructed and the Bohm-de Broglie interpretation of quantum cosmology is applied. A planar dynamical system is found in which a diversity of quantum bohmian trajectories are obtained and discussed. One class of solutions represents non-singular inflationary models starting at infinity past from flat space-time with Planckian size spacelike hypersurfaces, which inflates without inflaton but due to a quantum cosmological effect, until it makes an analytical graceful exit from this inflationary epoch to a decelerated classical stiff matter expansion phase.
dc.description10 pages, 5 figures. Some changes in the conclusion, some references added. Last version, accepted for publication in PRD
dc.identifierhttps://arxiv.org/abs/0707.1088
dc.identifierhttp://arxiv.org/abs/0707.1088
dc.identifierPhys.Rev.D76:083521,2007
dc.identifierdoi:10.1103/PhysRevD.76.083521
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193065
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleAn Inflationary Non-singular Quantum Cosmological Model
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