Conditions for observable bi and tri-spectra in two-field slow-roll inflation

Joseph Elliston

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arXiv · 1302.4912

Conditions for observable bi and tri-spectra in two-field slow-roll inflation

Joseph Elliston

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Abstract

We find constraints on inflationary dynamics that yield a large local bispectrum and/or trispectrum during two-field slow-roll inflation. This leads to simple relations between the non-Gaussianity parameters, simplifying the Suyama-Yamaguchi inequality and also producing a new result between the trispectrum parameters tNL and gNL.

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Joseph Elliston. 2013-02-20. Conditions for observable bi and tri-spectra in two-field slow-roll inflation. https://arxiv.org/abs/1302.4912

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