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

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.

4 pages, minor revision, published version

References in corpus (5)

• Observational Signatures and Non-Gaussianities of General Single Field Inflation
• Primordial Non-Gaussianities from Inflation Models
• On the consistency relation of the 3-point function in single field inflation
• A note on the role of the boundary terms for the non-Gaussianity in general k-inflation
• A new method for calculating the primordial bispectrum in the squeezed limit

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