Consistency Relations for Non-Gaussianity

Details Consistency Relations for Non-Gaussianity Consistency Relations for Non-Gaussianity

2008-07-18

arxiv.org/abs/0807.3058v3

JCAP 0809:018,2008

Physics

High Energy Physics

High Energy Physics - Theory

18 pages. v2 and v3: references added

Scientific paper

10.1088/1475-7516/2008/09/018

We investigate consistency relations for non-Gaussianity. We provide a model-independent dynamical proof for the consistency relation of 3-point correlation functions from the Hamiltonian and field redefinition. This relation can be applied to single field inflation, multi-field inflation and the curvaton scenario. This relation can also be generalized to $n$-point correlation functions up to arbitrary order in perturbation theory and with arbitrary number of loops.

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