Résumé / Abstract Seminaire_GReCO

"Inflationary models after Planck"

Vincent Vennin
Institut d'Astrophysique de Paris (Paris, France)

An unprecedented opportunity to constrain the inflationary theory is provided by the current flow of high accuracy astrophysical data, among which are the Cosmic Microwave Background measurements by the Planck satellite. This is however a challenging project given the size of the inflationary landscape which contains hundreds of different scenarios. A reasonable approach is to consider the simplest models first, namely the slow-roll single field models with minimal kinetic terms, unless the data drive us to more complicated ones. This still leaves us with a very populated landscape, the exploration of which requires new and efficient strategies. Recently the publicly available runtime library ASPIC has been developed to implement this approach, providing all routines needed to quickly derive reheating consistent observable predictions for each of the ~70 models within this class of scenarios. In this talk I will present the status of this evolutive project, ultimately aimed at ranking the inflationary models by means of Bayesian inference. Depending on schedule, I will also show the first results of Bayesian evidences and posteriors for these models.

lundi 27 mai 2013 - 11:00
Salle des séminaires François Arago,
Institut d'Astrophysique de Paris

Page web du séminaire / Seminar's webpage