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astro-ph2003
High order correlation functions for self interacting scalar field in de Sitter space
Francis Bernardeau, Tristan Brunier, Jean-Philippe Uzan
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 cub…
astro-ph2003
Finite volume effects for non-Gaussian multi-field inflationary models
Francis Bernardeau, Jean-Philippe Uzan
Models of multi-field inflation exhibiting primordial non-Gaussianity have recently been introduced. This is the case in particular if the fluctuations of a light field scalar fiel…