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Classical and quantum cosmology of the little rip abrupt event

2016-04-28Journal article Restricted access
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dc.contributor.authorAlbarran, Imanol
dc.contributor.authorBouhmadi Lopez, Mariam
dc.contributor.authorKiefer, Claus
dc.contributor.authorMarto, João
dc.contributor.authorMoniz, Paulo
dc.date.accessioned2018-11-26T16:37:34Z
dc.date.available2018-11-26T16:37:34Z
dc.date.issued2016-04-28
dc.description.abstractWe analyze from a classical and quantum point of view the behavior of the universe close to a little rip, which can be interpreted as a big rip sent towards the infinite future. Like a big rip singularity, a little rip implies the destruction of all bounded structure in the Universe and is thus an event where quantum effects could be important. We present here a new phantom scalar field model for the little rip. The quantum analysis is performed in quantum geometrodynamics, with the Wheeler-DeWitt equation as its central equation. We find that the little rip can be avoided in the sense of the DeWitt criterion, that is, by having a vanishing wave function at the place of the little rip. Therefore our analysis completes the answer to the question: can quantum cosmology smoothen or avoid the divergent behavior genuinely caused by phantom matter? We show that this can indeed happen for the little rip, similar to the avoidance of a big rip and a little sibling of the big rip.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1103/PhysRevD.94.063536pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/6503
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Physical Societypt_PT
dc.relation.publisherversionhttps://doi.org/10.1103/PhysRevD.94.063536pt_PT
dc.subjectLate time cosmologypt_PT
dc.subjectSingularitiespt_PT
dc.titleClassical and quantum cosmology of the little rip abrupt eventpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMAT%2F00212%2F2013/PT
oaire.citation.issue6pt_PT
oaire.citation.titlePhysical Review D - Particles, Fields, Gravitation and Cosmologypt_PT
oaire.citation.volume94pt_PT
oaire.fundingStream5876
person.familyNameAlbarran
person.familyNameBouhmadi Lopez
person.familyNameKiefer
person.familyNamePedro de Jesus Marto
person.familyNameMoniz
person.givenNameImanol
person.givenNameMariam
person.givenNameClaus
person.givenNameJoão
person.givenNamePaulo
person.identifier277693
person.identifier.ciencia-idCF1F-8611-C989
person.identifier.ciencia-id2F16-67B1-A930
person.identifier.ciencia-idB410-D0B7-55C1
person.identifier.orcid0000-0003-4278-9372
person.identifier.orcid0000-0002-1529-1889
person.identifier.orcid0000-0001-6163-9519
person.identifier.orcid0000-0003-3974-9177
person.identifier.orcid0000-0001-7170-8952
person.identifier.ridM-9845-2013
person.identifier.scopus-author-id6508339470
person.identifier.scopus-author-id6701832578
project.funder.identifierhttp://doi.org/10.13039/501100001871
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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