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arXiv · 1210.3692

Violation of non-Gaussianity consistency relation in a single field inflationary model

Mohammad Hossein Namjoo·Hassan Firouzjahi·Misao Sasaki
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Abstract

In this paper we present a simple, toy model of single field inflation in which the standard non-Gaussianity consistency condition is violated. In this model the curvature perturbations on super-horizon scales are not conserved and the decaying modes of perturbations are not negligible in the non-atractor phase. As a result a large local non-Gaussianity can be obtained in the squeezed limit which violates the standard non-Gaussianity consistency condition for the single field models.

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Mohammad Hossein Namjoo, Hassan Firouzjahi, Misao Sasaki. 2013-03-18. Violation of non-Gaussianity consistency relation in a single field inflationary model. https://doi.org/10.1209/0295-5075%2F101%2F39001

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