Singularity Avoidance in Nonlinear Quantum Cosmology

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dc.creatorNguyen, Le-Huy
dc.creatorParwani, Rajesh R.
dc.date2009-02-17
dc.date.accessioned2026-07-07T13:10:26Z
dc.date.available2026-07-07T13:10:26Z
dc.descriptionWe extend our previous study on the effects of an information-theoretically motivated nonlinear correction to the Wheeler-deWitt equation in the minisuperspace scheme for FRW universes. Firstly we show that even when the geometry is hyperbolic, and matter given by a cosmological constant, the nonlinearity can still provide a barrier to screen the initial singularity, just as in the case for flat universes. Secondly, in the flat case we show that singularity avoidance in the presence of a free massless scalar field is perturbatively possible for a very large class of initially unperturbed quantum states, generalising our previous discussion using Gaussian states.
dc.description6 pages. Presented at the DSU conference in Cairo, Egypt 2008. Typos in eq. 22 and 29 of the proceedings version corrected here
dc.identifierhttps://arxiv.org/abs/0902.2844
dc.identifierhttp://arxiv.org/abs/0902.2844
dc.identifierAIP Conf.Proc.1115:180-185,2009
dc.identifierdoi:10.1063/1.3131494
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/229014
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.subjectQuantum Physics
dc.titleSingularity Avoidance in Nonlinear Quantum Cosmology
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