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Consistency Relations for Non-Gaussianity

Research paper by Miao Li, Yi Wang

Indexed on: 12 Sep '08Published on: 12 Sep '08Published in: High Energy Physics - Theory



Abstract

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.