A Bound Concerning Primordial Non-Gaussianity
Astrophysics
2009-11-13 v2
Abstract
Seery and Lidsey have calculated the three-point correlator of the light scalar fields, a few Hubble times after horizon exit during inflation. Lyth and Rodriguez have calculated the contribution of this correlator to the three-point correlator of the primordial curvature perturbation. We calculate an upper bound on that contribution, showing that it is too small ever to be observable.
Cite
@article{arxiv.astro-ph/0507608,
title = {A Bound Concerning Primordial Non-Gaussianity},
author = {David H. Lyth and Ignacio Zaballa},
journal= {arXiv preprint arXiv:astro-ph/0507608},
year = {2009}
}
Comments
5 pages, typos corrected, added references for section 1