Particle creation in (2+1) circular dust collapse

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dc.creatorGutti, Sashideep
dc.creatorSingh, T. P.
dc.date2007-03-28
dc.date2007-08-13
dc.date.accessioned2026-07-07T11:21:57Z
dc.date.available2026-07-07T11:21:57Z
dc.descriptionWe investigate the quantum particle creation during the circularly symmetric collapse of a 2+1 dust cloud, for the cases when the cosmological constant is either zero or negative. We derive the Ford-Parker formula for the 2+1 case, which can be used to compute the radiated quantum flux in the geometric optics approximation. It is shown that no particles are created when the collapse ends in a naked singularity, unlike the 3+1 case. When the collapse ends in a BTZ black hole, we recover the expected Hawking radiation.
dc.description15 pages, additional material added in Introduction and Discussion, conclusions unchanged, to appear in Physical Review D
dc.identifierhttps://arxiv.org/abs/gr-qc/0703142
dc.identifierhttp://arxiv.org/abs/gr-qc/0703142
dc.identifierPhys.Rev.D76:064026,2007
dc.identifierdoi:10.1103/PhysRevD.76.064026
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194414
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleParticle creation in (2+1) circular dust collapse
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