Non-Gaussianity in a general kind noncanonical warm inflation
General Relativity and Quantum Cosmology
2019-12-19 v2 Cosmology and Nongalactic Astrophysics
Abstract
The general kind noncanonical warm inflation is introduced and its total non-Gaussianity of perturbation on uniform energy density hypersurfaces is studied. The total non-Gaussianity contains two complementary parts: the three- and the four-point correlations. The three-point correlation part denoted by , comes from the three-point correlation of inflaton field, while the four-point correlation part, denoted by , is the contribution due to the four-point correlation function of the inflaton field. The aforementioned two parts of non-Gaussianity in general noncanonical warm inflation are calculated and analysed respectively, and the comparisons and discussions of the two parts are finally carried out in this study.
Keywords
Cite
@article{arxiv.1910.01390,
title = {Non-Gaussianity in a general kind noncanonical warm inflation},
author = {Xiao-Min Zhang and Kai Li and Hong-Yang Ma and Qian Liu and Jian-Yang Zhu},
journal= {arXiv preprint arXiv:1910.01390},
year = {2019}
}
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8pages,0figures