Fate of gravitational collapse in semiclassical gravity

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dc.creatorBarcelo, Carlos
dc.creatorLiberati, Stefano
dc.creatorSonego, Sebastiano
dc.creatorVisser, Matt
dc.date2007-12-07
dc.date.accessioned2026-07-07T11:39:13Z
dc.date.available2026-07-07T11:39:13Z
dc.descriptionWhile the outcome of gravitational collapse in classical general relativity is unquestionably a black hole, up to now no full and complete semiclassical description of black hole formation has been thoroughly investigated. Here we revisit the standard scenario for this process. By analyzing how semiclassical collapse proceeds we show that the very formation of a trapping horizon can be seriously questioned for a large set of, possibly realistic, scenarios. We emphasise that in principle the theoretical framework of semiclassical gravity certainly allows the formation of trapping horizons. What we are questioning here is the more subtle point of whether or not the standard black hole picture is appropriate for describing the end point of realistic collapse. Indeed if semiclassical physics were in some cases to prevent formation of the trapping horizon, then this suggests the possibility of new collapsed objects which can be much less problematic, making it unnecessary to confront the information paradox or the run-away end point problem.
dc.descriptionrevtex4, 14 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/0712.1130
dc.identifierhttp://arxiv.org/abs/0712.1130
dc.identifierPhys.Rev.D77:044032,2008
dc.identifierdoi:10.1103/PhysRevD.77.044032
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199840
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleFate of gravitational collapse in semiclassical gravity
dc.typetext

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