Speaker
Prof.
Claudia de Rham
(Case Western Reserve University)
Description
If the particle carrier of the gravitational force had a
mass, gravity could behave differently as GR on cosmological
scales thereby potentially tackling the dark energy and
cosmological constant problems. I will review the
cosmological behavior of this model as well as some of its
extensions. In particular I will present some exact FLRW
solutions in generalized massive gravity where the mass
parameters are naturally promoted to Lorentz-invariant
functions of the Stuckelberg fields. The existence of
stable self-accelerating solutions will be discussed as well
as some relevant phenomenology.
