Extended Slow-Roll Conditions and Primordial Fluctuations: Multiple Scalar Fields and Generalized Gravity
Astrophysics
2009-11-18 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
As an extension of our previous study, we derive slow-roll conditions for multiple scalar fields which are non-minimally coupled with gravity and for generalized gravity theories of the form . We provide simple formulae of the spectral indices of scalar/tensor perturbations in terms of the slow-roll parameters.
Keywords
Cite
@article{arxiv.0810.5387,
title = {Extended Slow-Roll Conditions and Primordial Fluctuations: Multiple Scalar Fields and Generalized Gravity},
author = {Takeshi Chiba and Masahide Yamaguchi},
journal= {arXiv preprint arXiv:0810.5387},
year = {2009}
}
Comments
15 pages, to appear in JCAP