Creating perturbations from a decaying field during inflation
Cosmology and Nongalactic Astrophysics
2013-04-09 v2 High Energy Physics - Phenomenology
Abstract
Typically the fluctuations generated from a decaying field during inflation do not contribute to the large scale structures. In this paper we provide an example where it is possible for a field which slowly rolls and then decays during inflation to create all the matter perturbations with a slightly red-tilted spectral index, with no isocurvature perturbations, and with a possibility of a departure from Gaussian fluctuations.
Cite
@article{arxiv.1210.7818,
title = {Creating perturbations from a decaying field during inflation},
author = {Anupam Mazumdar and Lingfei Wang},
journal= {arXiv preprint arXiv:1210.7818},
year = {2013}
}
Comments
4 pages, 2 figures, revision accepted by PRD