Quantum-corrected ultraextremal horizons and validity of WKB in massless limit

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dc.creatorPopov, Arkady A.
dc.creatorZaslavskii, Oleg B.
dc.date2007-03-25
dc.date.accessioned2026-07-07T11:01:49Z
dc.date.available2026-07-07T11:01:49Z
dc.descriptionWe consider quantum backreaction of the quantized scalar field with an arbitrary mass and curvature coupling on ultraextremal horizons. The problem is distinguished in that (in contrast to non-extremal or extremal black holes) the WKB approximation remains valid near $r_{+}$ (which is the radius of the horizon) even in the massless limit. We examine the behavior of the stress-energy tensor of the quantized field near $r_{+}$ and show that quantum-corrected objects under discussion do exist. In the limit of the large mass our results agree with previous ones known in literature.
dc.descriptionrevtex4, 9 pages
dc.identifierhttps://arxiv.org/abs/gr-qc/0703120
dc.identifierhttp://arxiv.org/abs/gr-qc/0703120
dc.identifierPhys.Rev.D75:084018,2007
dc.identifierdoi:10.1103/PhysRevD.75.084018
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188067
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleQuantum-corrected ultraextremal horizons and validity of WKB in massless limit
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