Extended Slow-Roll Conditions and Rapid-Roll Conditions
Astrophysics
2011-07-13 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We derive slow-roll conditions for a scalar field which is non-minimally coupled with gravity in a consistent manner and express spectral indices of scalar/tensor perturbations in terms of the slow-roll parameters. The conformal invariance of the curvature perturbation is proved without linear approximations. Rapid-roll conditions are also derived, and the relation with the slow-roll conditions is discussed.
Cite
@article{arxiv.0807.4965,
title = {Extended Slow-Roll Conditions and Rapid-Roll Conditions},
author = {Takeshi Chiba and Masahide Yamaguchi},
journal= {arXiv preprint arXiv:0807.4965},
year = {2011}
}
Comments
15 pages, published version