Chameleonic inflation

dc.contributor.authorHinterbichler, Kurt
dc.contributor.authorKhoury, Justin
dc.contributor.authorNastase, Horatiu [UNESP]
dc.contributor.authorRosenfeld, Rogério [UNESP]
dc.contributor.institutionPerimeter Institute for Theoretical Physics
dc.contributor.institutionUniversity of Pennsylvania
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:30:45Z
dc.date.available2014-05-27T11:30:45Z
dc.date.issued2013-09-30
dc.description.abstractWe attempt to incorporate inflation into a string theory realization of the chameleon mechanism. Previously, it was found that the volume modulus, stabilized by the supersymmetric potential used by Kachru, Kallosh, Linde and Trivedi (KKLT) and with the right choice of parameters, can generically work as a chameleon. In this paper, we ask whether inflation can be realized in the same model. We find that we need a large extra dimensions set-up, as well as a semi-phenomenological deformation of the Kähler potential in the quantum region. We also find that an additional KKLT term is required so that there are now two pieces to the potential, one which drives inflation in the early universe, and one which is responsible for chameleon screening at late times. These two pieces of the potential are separated by a large flat desert in field space. The scalar field must dynamically traverse this desert between the end of inflation and today, and we find that this can indeed occur under the right conditions. © 2013 SISSA, Trieste, Italy.en
dc.description.affiliationPerimeter Institute for Theoretical Physics, 31 Caroline St. N, Waterloo, ON N2L 2Y5
dc.description.affiliationCenter for Particle Cosmology Department of Physics and Astronomy University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104
dc.description.affiliationICTP South American Institute for Fundamental Research Instituto de Física Teórica UNESP-Universidade Estadual Paulista, R. Dr. Bento T. Ferraz 271, Bl. II, Sao Paulo 01140-070 SP
dc.description.affiliationUnespICTP South American Institute for Fundamental Research Instituto de Física Teórica UNESP-Universidade Estadual Paulista, R. Dr. Bento T. Ferraz 271, Bl. II, Sao Paulo 01140-070 SP
dc.description.sponsorshipNational Aeronautics and Space Administration (NASA)
dc.description.sponsorshipIdNASA: NNX11AI95G
dc.identifierhttp://dx.doi.org/10.1007/JHEP08(2013)053
dc.identifier.citationJournal of High Energy Physics, v. 2013, n. 8, 2013.
dc.identifier.doi10.1007/JHEP08(2013)053
dc.identifier.file2-s2.0-84884546604.pdf
dc.identifier.issn1126-6708
dc.identifier.issn1029-8479
dc.identifier.scopus2-s2.0-84884546604
dc.identifier.urihttp://hdl.handle.net/11449/76657
dc.identifier.wosWOS:000324113700053
dc.language.isoeng
dc.relation.ispartofJournal of High Energy Physics
dc.relation.ispartofjcr5.541
dc.relation.ispartofsjr1,227
dc.relation.ispartofsjr1,227
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectCosmology of Theories beyond the SM
dc.subjectField Theories in Higher Dimensions
dc.titleChameleonic inflationen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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