Generating the primordial curvature perturbation from inflation
High Energy Physics - Phenomenology
2007-05-23 v3 Astrophysics
High Energy Physics - Theory
Abstract
The scale--independence of the primordial curvature perturbation suggests that it comes from the vacuum fluctuation during inflation of a light scalar field. This field may be the inflaton, or a different `curvaton' field. The observation of primordial non--gaussianity would be a smoking gun for the curvaton model, while the observation of gravitational waves originating during slow--roll inflation would rule out the model.
Cite
@article{arxiv.hep-ph/0205266,
title = {Generating the primordial curvature perturbation from inflation},
author = {David H. Lyth},
journal= {arXiv preprint arXiv:hep-ph/0205266},
year = {2007}
}
Comments
Invited talk at Moriond `The Cosmological Model'. v2 corrects minor typos and alters a few words