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Semiclassical collapse with tachyon field and barotropic fluid

2013Journal article Restricted access
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dc.contributor.authorTavakoli, Yaser
dc.contributor.authorMarto, João
dc.contributor.authorZiaie, Amir Hadi
dc.contributor.authorMoniz, Paulo
dc.date.accessioned2018-11-26T15:32:01Z
dc.date.available2018-11-26T15:32:01Z
dc.date.issued2013
dc.description.abstractThe purpose of this paper is to extend the analysis presented in Goswami et al. [Phys. Rev. Lett. 96, 031302 (2006)] by means of investigating how a specific type of loop (quantum) effect can alter the outcome of gravitational collapse. To be more concrete, a particular class of spherically symmetric spacetime is considered with a tachyon field ϕ and a barotropic fluid constituting the matter content; the tachyon potential V(ϕ) is assumed to be of the form ϕ^(−2). Within inverse triad corrections, we then obtain, for a semiclassical description, several classes of analytical as well as numerical solutions. Moreover, we identify a subset whose behavior corresponds to an outward flux of energy, thus avoiding either a naked singularity or a black hole formation.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationYaser Tavakoli, João Marto, Amir Hadi Ziaie, and Paulo Vargas Moniz Phys. Rev. D 87, 024042pt_PT
dc.identifier.doi10.1103/PhysRevD.87.024042pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/6494
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Physical Societypt_PT
dc.relationSymmetries, gravitation and strings
dc.relationSymmetries, gravitation and strings
dc.relation.publisherversionhttps://doi.org/10.1103/PhysRevD.87.024042pt_PT
dc.subjectGravitationpt_PT
dc.subjectLoop Quantum Gravitypt_PT
dc.titleSemiclassical collapse with tachyon field and barotropic fluidpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleSymmetries, gravitation and strings
oaire.awardTitleSymmetries, gravitation and strings
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/CERN%2FFP%2F109351%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/CERN%2FFP%2F116373%2F2010/PT
oaire.citation.issue2pt_PT
oaire.citation.titlePhysical Review D - Particles, Fields, Gravitation and Cosmologypt_PT
oaire.citation.volume87pt_PT
oaire.fundingStream3599-PPCDT
oaire.fundingStream3599-PPCDT
person.familyNameTavakoli
person.familyNamePedro de Jesus Marto
person.familyNameZiaie
person.familyNameMoniz
person.givenNameYaser
person.givenNameJoão
person.givenNameAmir Hadi
person.givenNamePaulo
person.identifierhttps://scholar.google.com/citations?user=kA-uFTYAAAAJ&hl=en
person.identifier277693
person.identifier.ciencia-id9812-C08C-3084
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person.identifier.ciencia-idB410-D0B7-55C1
person.identifier.orcid0000-0003-0099-5100
person.identifier.orcid0000-0003-3974-9177
person.identifier.orcid0000-0001-7029-134X
person.identifier.orcid0000-0001-7170-8952
person.identifier.ridM-9845-2013
person.identifier.scopus-author-id6701832578
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.embargofctCopyright cedido à editora no momento da publicaçãopt_PT
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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