The hybrid curvaton
arXiv:1201.6037 · doi:10.1103/PhysRevD.85.123541
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.
6pages, 1 figure, minor corrections