High order correlation functions for self interacting scalar field in de Sitter space
Astrophysics
2009-11-10 v1 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We present the expressions of the three- and four-point correlation functions of a self interacting light scalar field in a de Sitter spacetime at tree order respectively for a cubic and a quartic potential. Exact expressions are derived and their limiting behaviour on super-horizon scales are presented. Their essential features are shown to be similar to those obtained in a classical approach.
Cite
@article{arxiv.astro-ph/0311422,
title = {High order correlation functions for self interacting scalar field in de Sitter space},
author = {Francis Bernardeau and Tristan Brunier and Jean-Philippe Uzan},
journal= {arXiv preprint arXiv:astro-ph/0311422},
year = {2009}
}
Comments
8 pages, 4 figures