How quantum is the big bang?

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dc.creatorBojowald, Martin
dc.date2008-05-08
dc.date.accessioned2026-07-07T11:50:38Z
dc.date.available2026-07-07T11:50:38Z
dc.descriptionWhen quantum gravity is used to discuss the big bang singularity, the most important, though rarely addressed, question is what role genuine quantum degrees of freedom play. Here, complete effective equations are derived for isotropic models with an interacting scalar to all orders in the expansions involved. The resulting coupling terms show that quantum fluctuations do not affect the bounce much. Quantum correlations, however, do have an important role and could even eliminate the bounce. How quantum gravity regularizes the big bang depends crucially on properties of the quantum state.
dc.description4 pages
dc.identifierhttps://arxiv.org/abs/0805.1192
dc.identifierhttp://arxiv.org/abs/0805.1192
dc.identifierPhys.Rev.Lett.100:221301,2008
dc.identifierdoi:10.1103/PhysRevLett.100.221301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203623
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleHow quantum is the big bang?
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