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dc.contributor.authorAzri, Hemza
dc.date.accessioned2020-01-21T08:59:05Z
dc.date.available2020-01-21T08:59:05Z
dc.date.issued2018-07en_US
dc.identifier.citationAzri, H. (2018). Are there really conformal frames? Uniqueness of affine inflation. International Journal of Modern Physics D, 27(9). doi:10.1142/S0218271818300069en_US
dc.identifier.issn0218-2718
dc.identifier.urihttps://doi.org/10.1142/S0218271818300069
dc.identifier.urihttps://hdl.handle.net/11147/7607
dc.description.abstractHere, we concisely review the nonminimal coupling dynamics of a single scalar field in the context of purely affine gravity and extend the study to multifield dynamics. The coupling is performed via an affine connection and its associated curvature without referring to any metric tensor. The latter arises a posteriori and it may gain an emergent character like the scale of gravity. What is remarkable in affine gravity is the transition from nonminimal to minimal couplings which is realized by only field redefinition of the scalar fields. Consequently, the inflationary models gain a unique description in this context where the observed parameters, like the scalar tilt and the tensor-to-scalar ratio, are invariant under field reparametrization. Overall, gravity in its affine approach is expected to reveal interesting and rich phenomenology in cosmology and astroparticle physics.en_US
dc.description.sponsorshipTUBITAK (115F212)en_US
dc.language.isoengen_US
dc.publisherWorld Scientific Publishingen_US
dc.relation.isversionof10.1142/S0218271818300069en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAffine gravityen_US
dc.subjectConformal framesen_US
dc.subjectEinstein-Jordan framesen_US
dc.subjectInduced gravityen_US
dc.subjectNonminimal couplingen_US
dc.titleAre there really conformal frames? Uniqueness of affine inflationen_US
dc.typereviewen_US
dc.contributor.iztechauthorAzri, Hemza
dc.relation.journalInternational Journal of Modern Physics Den_US
dc.contributor.departmentIzmir Institute of Technology. Physicsen_US
dc.identifier.volume27en_US
dc.identifier.issue9en_US
dc.identifier.wosWOS:000437317900001
dc.identifier.scopusSCOPUS:2-s2.0-85047222888
dc.relation.tubitakinfo:eu-repo/grantAgreement/TUBITAK/MFAG/115F212
dc.relation.publicationcategoryDiğeren_US


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