The Big-Bang Singularity in the framework of a Generalized Uncertainty Principle

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dc.creatorBattisti, Marco Valerio
dc.creatorMontani, Giovanni
dc.date2007-03-05
dc.date2007-09-17
dc.date.accessioned2026-07-07T11:21:49Z
dc.date.available2026-07-07T11:21:49Z
dc.descriptionWe analyze the quantum dynamics of the Friedmann-Robertson-Walker Universe in the context of a Generalized Uncertainty Principle. Since the isotropic Universe dynamics resembles that of a one-dimensional particle, we quantize it with the commutation relations associated to an extended formulation of the Heisenberg algebra. The evolution of the system is described in terms of a massless scalar field taken as a relational time. We construct suitable wave packets and analyze their dynamics from a quasi-classical region to the initial singularity. The appearance of a non singular dynamics comes out as far as the behavior of the probability density is investigated. Furthermore, reliable indications arise about the absence of a Big-Bounce, as predicted in recent issues of Loop Quantum Cosmology.
dc.description4 pages, 2 figures; v2: section added, to appear on PLB
dc.identifierhttps://arxiv.org/abs/gr-qc/0703025
dc.identifierhttp://arxiv.org/abs/gr-qc/0703025
dc.identifierPhys.Lett.B656:96-101,2007
dc.identifierdoi:10.1016/j.physletb.2007.09.012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194377
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleThe Big-Bang Singularity in the framework of a Generalized Uncertainty Principle
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