Speaker
Mikko Sakari Laine
(Universitaet Bern (CH))
Description
An axion-like inflaton coupling to a non-Abelian gauge sector leads to a scenario which may involve fast thermalization, a computable friction coefficient, control over backreaction effects, and gravitational wave production in various frequency domains. The physics depends on the confinement scale of the non-Abelian sector, and can be either weakly or strongly coupled. We review the main ingredients of this scenario, and outline open problems.
