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Possible antigravity regions in F (R) theory?

dc.contributor.authorBamba, Kazuharu
dc.contributor.authorNojiri, Shin’ichi
dc.contributor.authorOdintsov, Sergei D.
dc.contributor.authorSáez Gómez, Diego
dc.date.accessioned2016-02-04T12:15:38Z
dc.date.available2016-02-04T12:15:38Z
dc.date.issued2014-03-07
dc.identifier.citationPhysics Letters B 730 : 136-140 (2014)es
dc.identifier.issn0370-2693
dc.identifier.issn1873-2445
dc.identifier.urihttp://hdl.handle.net/10810/17247
dc.description.abstractWe construct an F(R) gravity theory corresponding to the Weyl invariant two scalar field theory. We investigate whether such F (R) gravity can have the antigravity regions where the Weyl curvature invariant does not diverge at the Big Bang and Big Crunch singularities. It is revealed that the divergence cannot be evaded completely but can be much milder than that in the original Weyl invariant two scalar field theory. (C) 2014 The Authors. Published by Elsevier B.V.es
dc.description.sponsorshipS.D.O. acknowledges the Japan Society for the Promotion of Science (JSPS) Short Term Visitor Program S-13131 and the very hearty hospitality at Nagoya University, where the work was developed. The work is supported in part by the JSPS Grant-in-Aid for Young Scientists (B) # 25800136 (K.B.); that for Scientific Research (S) # 22224003 and (C) # 23540296 (S.N.); and MINECO (Spain), FIS2010-15640 and AGAUR (Generalitat de Catalunya), contract 2009SGR-345, and MES project 2.1839.2011 (Russia) (S.D.O.). D.S.-G. also acknowledges the support from the University of the Basque Country, Project Consolider CPAN Bo. CSD2007-00042 (Spain) and the URC financial support from the University of Cape Town (South Africa).es
dc.language.isoenges
dc.publisherElsevieres
dc.relationinfo:eu-repo/grantAgreement/MINECO/FIS2010-15640
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.subjectprobe WMAP observationses
dc.subjectobservations cosmological interpretationes
dc.subjectdark energyes
dc.subjectgeneral-relativityes
dc.subjectmodified gravityes
dc.subjectspace-timees
dc.subjectconstantes
dc.subjectuniversees
dc.subjectparameterses
dc.subjectsupernovaees
dc.titlePossible antigravity regions in F (R) theory?es
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.holder© 2014 The Authors. Published by Elsevier B.V. Open access under CC BY license. Funded by SCOAP3.es
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0370269314000677es
dc.identifier.doi10.1016/j.physletb.2014.01.045
dc.departamentoesFísica teórica e historia de la cienciaes_ES
dc.departamentoeuFisika teorikoa eta zientziaren historiaes_ES
dc.subject.categoriaPHYSICS, NUCLEAR


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