Primordial non-Gaussianities from inflation
Abstract
These notes present a detailed introduction to Maldacena's calculation of the three-point function generated by the simplest class of inflationary models: those with a single inflaton field whose potential satisfies the slow-roll conditions and whose quantum fluctuations start in the asymptotic Bunch-Davies vacuum state. The three-point function should be the most readily observed evidence for non-Gaussianities amongst the primordial fluctuations produced by inflation. In these inflationary theories the non-Gaussianities are predicted to be extremely small, being naturally suppressed by the small slow-roll parameters.
Cite
@article{arxiv.1101.1308,
title = {Primordial non-Gaussianities from inflation},
author = {Hael Collins},
journal= {arXiv preprint arXiv:1101.1308},
year = {2014}
}
Comments
60 pages, the revised version greatly extends and corrects the earlier notes, the full calculation of the three-point function has now been included