Two-loop Back-reaction in 2D Dilaton Gravity

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dc.creatorMikovic, A.
dc.creatorRadovanovic, V.
dc.date1996-06-17
dc.date.accessioned2026-07-07T12:30:42Z
dc.date.available2026-07-07T12:30:42Z
dc.descriptionWe calculate the two-loop quantum corrections, including the back-reaction of the Hawking radiation, to the one-loop effective metric in a unitary gauge quantization of the CGHS model of 2d dilaton gravity. The corresponding evaporating black hole solutions are analysed, and consistent semi-classical geometries appear in the weak-coupling region of the spacetime when the width of the matter pulse is larger then the short-distance cutoff. A consistent semi-classical geometry also appears in the limit of a shock-wave matter. The Hawking radiation flux receives non-thermal corrections such that it vanishes for late times and the total radiated mass is finite. There are no static remnants for matter pulses of finite width, although a BPP type static remnant appears in the shock-wave limit. Semi-classical geometries without curvature singularities can be obtained as well. Our results indicate that higher-order loop corrections can remove the singularities encountered in the one-loop solutions.
dc.description28 pages, 6 Postscript figures, LaTex
dc.identifierhttps://arxiv.org/abs/hep-th/9606098
dc.identifierhttp://arxiv.org/abs/hep-th/9606098
dc.identifierNucl.Phys.B481:719-742,1996
dc.identifierdoi:10.1016/S0550-3213(96)00528-7
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/216208
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleTwo-loop Back-reaction in 2D Dilaton Gravity
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