Neutrinos and the Universe

Abstract

In this talk, I review the potential connection of neutrinos to the Physics of the Early Universe, in particular the rôle of (sterile) neutrinos to leptogenesis/baryogenesis and the dark sector of the Universe. The possibility of CPT Violation among active neutrinos at early times and its role in leptogenesis/baryogenesis without sterile neutrinos is also touched upon.

Comments: 8 pages, latex, Invited talk at Nufact 11, CERN and U. of Geneva, 1-6 August 2011, submitted to IOP J. Conference Series