The Trispectrum in the Multi-brid Inflation
High Energy Physics - Theory
2009-05-29 v3
Abstract
The trispectrum is at least as important as the bispectrum and its size can be characterized by two parameters and . In this short paper, we focus on the Multi-brid inflation, in particular the two-brid inflation model in arXiv.0805.0974, and find that is always positive and roughly equals to for the low scale inflation, but can be negative or positive and its order of magnitude can be the same as that of or even larger
Cite
@article{arxiv.0903.1542,
title = {The Trispectrum in the Multi-brid Inflation},
author = {Qing-Guo Huang},
journal= {arXiv preprint arXiv:0903.1542},
year = {2009}
}
Comments
12 pages; minor correction, refs added; further refs added, version for publication in JCAP