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Models of inflation liberated by the curvaton hypothesis

Konstantinos Dimopoulos·David H. Lyth
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Abstract

It is usually supposed that inflation is of the slow-roll variety, and that the inflaton generates the primordial curvature perturbation. According to the curvaton hypothesis, inflation need not be slow-roll, and if it is the inflaton generates a negligible curvature perturbation. We find that the construction of slow-roll inflation models becomes much easier under this hypothesis. Also, thermal inflation followed by fast-roll becomes viable, with no slow-roll inflation at all.

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Konstantinos Dimopoulos, David H. Lyth. 2004-03-05. Models of inflation liberated by the curvaton hypothesis. https://doi.org/10.1103/physrevd.69.123509

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