Curvaton Dynamics in Brane-worlds
arXiv:gr-qc/0608026 · doi:10.1088/1475-7516/2006/11/005
Abstract
We study the curvaton dynamics in brane-world cosmologies. Assuming that the inflaton field survives without decay after the end of inflation, we apply the curvaton reheating mechanism to Randall-Sundrum and to its curvature corrections: Gauss-Bonnet, induced gravity and combined Gauss-Bonnet and induced gravity cosmological models. In the case of chaotic inflation and requiring suppression of possible short-wavelength generated gravitational waves, we constraint the parameters of a successful curvaton brane-world cosmological model. If density perturbations are also generated by the curvaton field then, the fundamental five-dimensional mass could be much lower than the Planck mass
47 pages, 1 figure, references added, to be published in JCAP
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- Curvaton reheating and intermediate inflation in brane cosmology