Speaker: 
Venus Keus
Speaker affiliation: 
University of Helsinki
Date: 
Friday, October 8, 2021 - 13:15
Room: 
Seminar Room and MS Teams
Title: 
CP-violating inflation
Abstract: 

I will introduce the novel phenomenon of CP-violating inflation which arises in models with several scalar doublets. The inert (without vacuum expectation value) doublets have a non-minimal coupling to gravity and play the role of the inflaton. I allow for this coupling to be complex, thereby introducing CP-violation - a necessary source of the baryon asymmetry - in the Higgs–inflaton couplings. I discuss the inflationary dynamics of such a model and show how the CP-violation is imprinted on the particle asymmetries after inflation in the hot big bang universe.