Résumé / Abstract Seminaire_GReCO

"Stochastic Inflation and Replica Field Theory"

F. Kühnel
Univ. Bielefeld (Bielefeld, Allemagne)

In this talk, I discuss the application of replica field theory to stochastic inflation. After a review of the latter and a basic introduction to the former, I present recent results for the power spectrum. This is done for a minimally coupled test field in de Sitter space-time. I will comment on the choice of filter functions and discuss the infra-red suppression of the power spectrum as an outcome of this new approach. In particular, I will show how this damping might explain the observed lack of large-angle correlation on the non-Galactic microwave sky.

lundi 9 mars 2009 - 11:00
Salle des séminaires Évry Schatzman,
Institut d'Astrophysique de Paris

Page web du séminaire / Seminar's webpage