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arXiv · 1301.6552

To the study of non-Gaussianity in two-field slow-roll inflation

N. A. Koshelev
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Abstract

The general expression for the second order large scale curvature perturbation in the form of a functional over a background solution is derived. The explicit expressions was obtained for two special forms of the inflationary potential. In the considered cases, it is shown that a significant level of non-Gaussianity can be generated during the super-Hubble evolution only if nonadiabatic perturbations are non-negligible at the end of inflation.

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N. A. Koshelev. 2013-01-28. To the study of non-Gaussianity in two-field slow-roll inflation. https://arxiv.org/abs/1301.6552

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