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

Francis Bernardeau; Tristan Brunier; Jean Philippe Uzan

doi:10.1103/PhysRevD.69.063520

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

Francis Bernardeau
, Tristan Brunier
, Jean Philippe Uzan

Institut Pierre Simon Laplace, CNRS and CEA
Université Paris-Sud
Institut d’Astrophysique de Paris

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

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.

langue originale	Anglais
Pages (de - à)	6
Nombre de pages	1
journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	69
Numéro de publication	6
Les DOIs	https://doi.org/10.1103/PhysRevD.69.063520
état	Publié - 1 janv. 2004
Modification externe	Oui

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10.1103/PhysRevD.69.063520

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

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AB - 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.

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DO - 10.1103/PhysRevD.69.063520

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

Résumé

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