Matter bounce as an alternative to inflation?

by Robert Brandenberger (McGill University)

Friday 15 May 2009, 11:30 → 12:30 Europe/Zurich

Geneva University, Auditoire 234, 24 E. Ansermet

Fluctuations which exit the Hubble radius during the matter-dominated contracting phase of a bouncing cosmology will, under certain conditions, lead to a scale-invariant spectrum of cosmological fluctuations, and thus to an alternative to cosmological inflation. I will discuss possible realizations of this scenario as well as some observational predictions.