Consistency Relations for Non-Gaussianity
High Energy Physics - Theory
2009-02-09 v3 Astrophysics
General Relativity and Quantum Cosmology
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 -point correlation functions up to arbitrary order in perturbation theory and with arbitrary number of loops.
Cite
@article{arxiv.0807.3058,
title = {Consistency Relations for Non-Gaussianity},
author = {Miao Li and Yi Wang},
journal= {arXiv preprint arXiv:0807.3058},
year = {2009}
}
Comments
18 pages. v2 and v3: references added