Quantum singularities in (2+1) dimensional matter coupled black hole spacetimes

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dc.authorid0000-0003-1980-4829en_US
dc.contributor.authorÜnver, Özlem
dc.contributor.authorGürtuğ, Özay
dc.contributor.authorGürtuğ, Özay
dc.date.accessioned2024-07-12T20:59:19Z
dc.date.available2024-07-12T20:59:19Z
dc.date.issued2012en_US
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Yazılım Mühendisliği Bölümüen_US
dc.description.abstractQuantum singularities considered in the 3 D BTZ spacetime by Pitelli and Letelier (Phys. Rev. D77: 124030, 2008) is extended to charged BTZ and 3D Einstein-Maxwell-dilaton gravity spacetimes. The occurence of naked singularities in the Einstein-Maxwell extension of the BTZ spacetime both in linear and non-linear electrodynamics as well as in the Einstein-Maxwell-dilaton gravity spacetimes are analysed with the quantum test fields obeying the Klein-Gordon and Dirac equations. We show that with the inclusion of the matter fields; the conical geometry near r = 0 is removed and restricted classes of solutions are admitted for the Klein-Gordon and Dirac equations. Hence, the classical central singularity at r = 0 turns out to be quantum mechanically singular for quantum particles obeying Klein-Gordon equation but nonsingular for fermions obeying Dirac equation. Explicit calculations reveal that the occurrence of the timelike naked singularities in the considered spacetimes do not violate the cosmic censorship hypothesis as far as the Dirac fields are concerned. The role of horizons that clothes the singularity in the black hole cases is replaced by repulsive potential barrier against the propagation of Dirac fields.en_US
dc.identifier.citationGürtuğ, Ö. ve Ünver, Ö. (2012). Quantum singularities in (2+1) dimensional matter coupled black hole spacetimes. Physical review D - Arxiv. s. 1-14.en_US
dc.identifier.endpage14en_US
dc.identifier.issn2470-0029
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1en_US
dc.identifier.urihttps://arxiv.org/pdf/1004.2572.pdf
dc.identifier.urihttps://journals.aps.org/prd/abstract/10.1103/PhysRevD.82.084016
dc.identifier.urihttps://hdl.handle.net/20.500.12415/3281
dc.language.isoenen_US
dc.publisherAPS Physicsen_US
dc.relation.ispartofPhysical review D - Arxiven_US
dc.relation.publicationcategoryDiğeren_US
dc.rightsAttribution-NonCommercial 3.0 United States*
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc/3.0/us/*
dc.snmzKY03247
dc.subjectQuantum singularityen_US
dc.subjectnaked singularityen_US
dc.subject2+1 dimensional spacetimesen_US
dc.titleQuantum singularities in (2+1) dimensional matter coupled black hole spacetimesen_US
dc.typeArticle
dspace.entity.typePublication

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