Models of inflation liberated by the curvaton hypothesis

Details Models of inflation liberated by the curvaton hypothesis Models of inflation liberated by the curvaton hypothesis

2002-09-17

arxiv.org/abs/hep-ph/0209180v3

Phys.Rev.D69:123509,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, latex, added material

Scientific paper

10.1103/PhysRevD.69.123509

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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