Curvaton reheating mechanism in inflation on warped Dvali-Gabadadze-Porrati brane

Details Curvaton reheating mechanism in inflation on warped Dvali-Gabadadze-Porrati brane Curvaton reheating mechanism in inflation on warped Dvali-Gabadadze-Porrati brane

2006-02-27

arxiv.org/abs/astro-ph/0602579v2

Phys.Lett.B641:405-414,2006

Astronomy and Astrophysics

Astrophysics

10 pages, 7 figures, references added

Scientific paper

10.1016/j.physletb.2006.07.055

An impressed feature of inflation on warped Dvali-Gabadadze-Porrati (DGP) brane is that the inflationary phase exits spontaneously for a scalar inflaton field with exponential potential, which presents a graceful exit mechanism for the inflation. But its reheating mechanism leaves open. We investigate the curvaton reheating in inflation on warped DGP brane model. The reheating may occur in effctively 5 dimensional or 4 dimensional stage. We study the permitted parameter space of the curvaton field in detail. We demonstrate how the inflation model of the warped DGP brane is improved by the curvaton mechanism.

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