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Non-Gaussianity in a general kind noncanonical warm inflation

Authors :
Zhang, Xiao-Min
Li, Kai
Ma, Hong-Yang
Liu, Qian
Zhu, Jian-Yang
Source :
Phys. Rev. D 100, 123521 (2019)
Publication Year :
2019

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 $f^{int}_{NL}$, comes from the three-point correlation of inflaton field, while the four-point correlation part, denoted by $f_{NL}^{\delta N}$, 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.<br />Comment: 8pages,0figures

Details

Database :
arXiv
Journal :
Phys. Rev. D 100, 123521 (2019)
Publication Type :
Report
Accession number :
edsarx.1910.01390
Document Type :
Working Paper
Full Text :
https://doi.org/10.1103/PhysRevD.100.123521