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Title
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Non-minimal inflation on the warped Dvali–Gabadadze–Porrati brane
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Type
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JournalPaper
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Keywords
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cosmology with extra dimensions, inflation, cosmological applications of theories with extra dimensions
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Abstract
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We construct an inflation model with the inflaton non-minimally coupled to gravity on a warped Dvali–Gabadadze–Porrati brane. Using an exponential potential, we calculate the 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 where minimal inflation cannot exit spontaneously. By means of a detailed analysis of parameter space, we study the constraints imposed on the non-minimal coupling from recent observational data.
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Researchers
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Behnaz Fazlpour (Second Researcher), Kourosh Nozari (First Researcher)
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