Non Gaussianity of General Multiple-Field Inflationary Models

Abstract

Using the "$\delta N$-formalism", We obtain the expression of the non-Gaussianity of multiple-field inflationary models with the nontrivial field-space metric. Further, we rewritten the result by using the slow-rolling approximation.

10 pages, no figure, references is added; mistakes is corrected

References in corpus (2)

• Non-Gaussianity from Inflation: Theory and Observations
• The inflationary prediction for primordial non-gaussianity

Cited by in corpus (7)

• Inflation with multiple sound speeds: a model of multiple DBI type actions and non-Gaussianities
• Nongaussianity from Tachyonic Preheating in Hybrid Inflation
• Primordial Non-Gaussianities of General Multiple Field Inflation
• The inflationary bispectrum with curved field-space
• Non-Gaussianities of Single Field Inflation with Non-minimal Coupling
• General formula for the running of local fNL
• Non-Gaussianity in D3-brane inflation