Slow-roll inflation without fine-tuning
General Relativity and Quantum Cosmology
2009-10-31 v1
Abstract
The slow-roll approximation is the usual starting point to study the constraints imposed on the inflaton potential parameters by the observational data. We show that, for a potential exhibiting at least two extrema and giving rise to a limited inflationary period, slow-roll does not have to be taken as an additional hypothesis and is in fact forced by the constraints on the number of e-foldings.
Keywords
Cite
@article{arxiv.gr-qc/9911093,
title = {Slow-roll inflation without fine-tuning},
author = {Tiago Charters and Jose P. Mimoso and Ana Nunes},
journal= {arXiv preprint arXiv:gr-qc/9911093},
year = {2009}
}
Comments
12 pages, 4 figures,RevTex style, to be published in Phys. Lett. B