Curvaton mechanism after multi-field inflation
High Energy Physics - Phenomenology
2015-06-15 v1 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
The evolution of the curvature perturbation after multi-field inflation is studied in the light of the curvaton mechanism. Past numerical studies show that many-field inflation causes significant evolution of the curvature perturbation after inflation, which generates significant non-Gaussianity at the same time. We reveal the underlying mechanism of the evolution and show that the evolution is possible in a typical two-field inflation model.
Cite
@article{arxiv.1303.7023,
title = {Curvaton mechanism after multi-field inflation},
author = {Seishi Enomoto and Tomohiro Matsuda},
journal= {arXiv preprint arXiv:1303.7023},
year = {2015}
}
Comments
10 pages, 2 figures, accepted for publication in PRD