Consistency relations for non-Gaussianity

被引：24
|
作者：
Li, Miao [1 ]
Wang, Yi
机构：
[1] Univ Sci & Technol China, Interdisciplinary Ctr Theoret Studies, Hefei 230026, Anhui, Peoples R China
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2008年 / 09期
关键词：
cosmological perturbation theory; inflation; physics of the early universe;
D O I：
10.1088/1475-7516/2008/09/018
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate consistency relations for non-Gaussianity. We provide a model-independent dynamical proof for the consistency relation for three-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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页数：15
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