Non-Minimal Inflation on the Warped DGP Brane

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Nozari, Kourosh
Fazlpour, Behnaz
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Abstract
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We construct an inflation model with inflaton non-minimally coupled to gravity on a warped DGP brane. Using an exponential potential, we calculate scalar power spectrum, spectral index and the running of the spectral index. We show that for a suitable range of non-minimal coupling it is possible to exit the inflationary phase spontaneously and without any mechanism, even in the case that minimal inflation can not exit spontaneously. By a detailed analysis of parameter space, we study the constraints imposed on the non-minimal coupling from recent observational data.
Comment: 21 pages, 11 eps figures, References added, Revised version submitted to JCAP
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High Energy Physics - Theory
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