The hybrid curvaton

Dimopoulos, Konstantinos and Kohri, Kazunori and Matsuda, Tomohiro (2012) The hybrid curvaton. Physical Review D, 85 (12). ISSN 1550-7998

Abstract

We study both oscillating and inflating curvaton scenarios when the curvaton mechanism is caused by a hybrid potential. The source of the curvature perturbation is the inhomogeneous phase transition that causes the modulation of the onset of the oscillation. For the supergravity-motivated curvaton there is a possibility of finding natural coincidence of the energy density that is needed to affect non-Gaussianity in the curvaton scenario.