High order correlation functions for a self-interacting scalar field in de Sitter space

被引：31

作者：

Bernardeau, F ^{[1
]}

Brunier, T

Uzan, JP

机构：

[1] CEA Saclay, CNRS, Unite Rech, CEA DSM SPhT,Serv Phys Theor, F-91191 Gif Sur Yvette, France

[2] Univ Paris 11, CNRS, UMR 8627, Phys Theor Lab, F-91405 Orsay, France

[3] CNRS, FRE 2435, Inst Astrophys, F-75014 Paris, France

来源：

PHYSICAL REVIEW D | 2004年 / 69卷 / 06期

关键词：

D O I：

10.1103/PhysRevD.69.063520

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 behavior on superhorizon scales are presented. Their essential features are shown to be similar to those obtained in a classical approach.

引用

页数：6

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