On primordial trispectrum from exchanging scalar modes in general multiple field inflationary models

preprint2010arXivOpen access

Abstract

We make an complementary investigation of the primordial trispectrum from exchanging intermediate scalar modes in multi-field inflation models with generalized kinetic terms. Together with the calculation of irreducible contributions to the primordial trispectrum in Ref.[103], we give the full leading-order primordial trispectrum in generalized multi-field models.

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