Consistency relation for single scalar inflation
Astrophysics
2009-11-10 v1 High Energy Physics - Theory
Abstract
Single scalar field inflation with a generic, non-quadratic in derivatives, field Lagrangian is considered. It is shown that non-Gaussianity of curvature perturbations is characterized by two dimensionless amplitudes. One of these amplitudes can be expressed in terms of the usual inflationary observables -- the scalar power, the tensor power, and the tensor index. This consistency relation provides an observational test for the single scalar inflation.
Cite
@article{arxiv.astro-ph/0406129,
title = {Consistency relation for single scalar inflation},
author = {Andrei Gruzinov},
journal= {arXiv preprint arXiv:astro-ph/0406129},
year = {2009}
}
Comments
6 pages