@jpschaar

New models of chaotic inflation in supergravity

, and . (2010)cite arxiv:1008.3375 Comment: 9 pages, 4 figures.

Abstract

We describe simple models of chaotic inflation which appear in the context of the superconformal approach to supergravity. One of these models describes a field minimally coupled to gravity, with the standard symmetry breaking potential łambda^2 (\phi^2-v^2)^2. Depending on the value of v and on initial conditions for inflation, the spectral index n_s may take any value from 0.97 to 0.93, and the tensor-to-scalar ratio r may span the interval form 0.3 to 0.01. Another model has a quadratic potential m^2\phi^2/2. The mechanism of moduli stabilization used in these models allows to improve and generalize several previously considered models of chaotic inflation in supergravity. We further generalize these models by adding a nonminimal coupling of the inflaton field to gravity.

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New models of chaotic inflation in supergravity

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