Black Holes and Nonperturbative Canonical 2D Dilaton Gravity

dc.creatorMikovic, A.
dc.date1994-02-16
dc.date1994-06-28
dc.date.accessioned2026-07-07T09:01:29Z
dc.date.available2026-07-07T09:01:29Z
dc.descriptionWe investigate nonperturbative canonical quantization of two dimensional dilaton gravity theories with an emphasis on the CGHS model. We use an approach where a canonical transformation is constructed such that the constraints take a quadratic form. The required canonical transformation is obtained by using a method based on the Bäcklund transformation from the Liouville theory. We quantize dilaton gravity in terms of the new variables, where it takes a form of a bosonic string theory with background charges. Unitarity is then established by going into a light-cone gauge. As a direct consequence, black holes in this theory do not violate unitarity, and there is no information loss. We argue that the information escapes during the evaporation process. We also discuss the implications of this quantization scheme for the quantum fate of real black holes. The main conclusion is that black holes do not have to violate quantum mechanics.
dc.description20 pgs, Imperial-TP/93-94/16, LaTex, (Argument about the presence of the Hawking radiation in the semiclassical limit has been made more precise.)
dc.identifierhttps://arxiv.org/abs/hep-th/9402095
dc.identifierhttp://arxiv.org/abs/hep-th/9402095
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/148334
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleBlack Holes and Nonperturbative Canonical 2D Dilaton Gravity
dc.typetext

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