Inflation With Non-Minimal Coupling: Metric Vs. Palatini Formulations
| dc.contributor.author | Bauer, Florian | |
| dc.contributor.author | Demir, Durmuş Ali | |
| dc.coverage.doi | 10.1016/j.physletb.2008.06.014 | |
| dc.date.accessioned | 2016-09-20T13:53:23Z | |
| dc.date.available | 2016-09-20T13:53:23Z | |
| dc.date.issued | 2008 | |
| dc.description.abstract | We analyze non-minimally coupled scalar field theories in metric (second-order) and Palatini (first-order) formalisms in a comparative fashion. After contrasting them in a general setup, we specialize to inflation and find that the two formalisms differ in their predictions for various cosmological parameters. The main reason is that dependencies on the non-minimal coupling parameter are different in the two formalisms. For successful inflation, the Palatini approach prefers a much larger value for the non-minimal coupling parameter than the Metric approach. Unlike the Metric formalism, in Palatini, the inflaton stays well below the Planck scale whereby providing a natural inflationary epoch. © 2008 Elsevier B.V. All rights reserved. | en_US |
| dc.description.sponsorship | Alexander von HumboldtStiftung Friedrich Wilhelm Bessel-Forschungspreise and by the Turkish Academy of Sciences via GEBIP grant | en_US |
| dc.identifier.citation | Bauer, F., and Demir, D. A. (2008). Inflation with non-minimal coupling: Metric vs. Palatini formulations. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 665(4), 222-226. doi:10.1016/j.physletb.2008.06.014 | en_US |
| dc.identifier.doi | 10.1016/j.physletb.2008.06.014 | en_US |
| dc.identifier.issn | 0370-2693 | |
| dc.identifier.issn | 0370-2693 | |
| dc.identifier.scopus | 2-s2.0-46449101949 | |
| dc.identifier.uri | http://doi.org/10.1016/j.physletb.2008.06.014 | |
| dc.identifier.uri | http://hdl.handle.net/11147/2162 | |
| dc.language.iso | en | en_US |
| dc.publisher | Elsevier Ltd. | en_US |
| dc.relation.ispartof | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | en_US |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.subject | Scalar field theory | en_US |
| dc.subject | Metric approaches | en_US |
| dc.subject | Palatini approaches | en_US |
| dc.title | Inflation With Non-Minimal Coupling: Metric Vs. Palatini Formulations | en_US |
| dc.type | Article | en_US |
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| gdc.author.institutional | Demir, Durmuş Ali | |
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| gdc.description.department | İzmir Institute of Technology. Physics | en_US |
| gdc.description.endpage | 226 | en_US |
| gdc.description.issue | 4 | en_US |
| gdc.description.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
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| gdc.description.startpage | 222 | en_US |
| gdc.description.volume | 665 | en_US |
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| gdc.oaire.keywords | High Energy Physics - Theory | |
| gdc.oaire.keywords | High Energy Physics - Phenomenology | |
| gdc.oaire.keywords | Palatini approaches | |
| gdc.oaire.keywords | High Energy Physics - Phenomenology (hep-ph) | |
| gdc.oaire.keywords | High Energy Physics - Theory (hep-th) | |
| gdc.oaire.keywords | Metric approaches | |
| gdc.oaire.keywords | Astrophysics (astro-ph) | |
| gdc.oaire.keywords | FOS: Physical sciences | |
| gdc.oaire.keywords | Scalar field theory | |
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