Non-Gaussianity in a general kind noncanonical warm inflation

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 $f_{NL}^{int}$, 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.

8pages,0figures

References in corpus (8)

• Warm Inflation and its Microphysical Basis
• Non-Gaussianities in two-field inflation
• Non-gaussianity from the second-order cosmological perturbation
• The warm inflationary universe
• Theory of non-Gaussianity in warm inflation
• Reconstructing a general inflationary action
• Note on Non-Gaussianities in Two-field Inflation
• Primordial non-Gaussianity in noncanonical warm inflation

Cited by in corpus (1)

• Consistency of a kind of general noncanonical warm inflation