Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2162
Title: Inflation with non-minimal coupling: Metric vs. Palatini formulations
Authors: Bauer, Florian
Demir, Durmuş Ali
Keywords: Scalar field theory
Metric approaches
Palatini approaches
Publisher: Elsevier Ltd.
Source: 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
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.
URI: http://doi.org/10.1016/j.physletb.2008.06.014
http://hdl.handle.net/11147/2162
ISSN: 0370-2693
0370-2693
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
2162.pdf216.63 kBAdobe PDFThumbnail
View/Open
Show full item record



CORE Recommender

SCOPUSTM   
Citations

185
checked on Mar 22, 2024

WEB OF SCIENCETM
Citations

181
checked on Mar 27, 2024

Page view(s)

106
checked on Mar 25, 2024

Download(s)

262
checked on Mar 25, 2024

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.