Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8196858 | Physics Letters B | 2007 | 4 Pages |
Abstract
Brane inflation in string theory leads to a new realization of power law inflation which can give rise to significant non-gaussianity. This can happen for any throat geometry if the scalar potential is appropriate. This Letter presents a consistency relation connecting the running of the nonlinearity parameter characterizing the non-gaussianity and the scalar and tensor indices. The relationship is valid assuming that the throat geometry and scalar potential support power law inflation, regardless of the level of non-gaussianity.
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Authors
MichaÅ SpaliÅski,