Publication : t06/043
Models of inflation with primordial non-Gaussianities
Bernardeau F. (CEA, DSM, SPhT (Service de Physique Théorique), F-91191 Gif-sur-Yvette, FRANCE)Brunier T. (CEA, DSM, SPhT (Service de Physique Théorique), F-91191 Gif-sur-Yvette, FRANCE)
Uzan J.-P. (Institut d\'Astrophysique de Paris (IAP-CNRS), 98 bis Bld Arago, F-75014 Paris, FRANCE)
Abstract:Année de publication : 2006
We present a class of models in which the primordial metric fluctuations do not necessarily obey Gaussian statistics. These models are realizations of mechanisms in which non-Gaussianity is first generated by a light scalar field and then transferred into curvature fluctuations during or at the end of inflation. For this class of models we present generic results for the probability distribution functions of the metric perturbation at the end of inflation. It is stressed that finite volume effects can induce non trivial effects that we sketch.
Revue : AIP Conf. Proc. 861 821-828 (2006)
Conférence - Communication : Albert Einstein Century International Conference ; UNESCO, Paris, France ; 2005-07-15 / 2005-07-22
DOI : 10.1063/1.2399664
Preprint : arXiv:astro-ph/0604200
Langue : Anglais
Fichier(s) à télécharger :
publi.pdf
