Theory Seminar

Long Range Effects in Gravity Theories with Vainshtein Screening

by Juri Smirnov

Monday, 4 March 2019 from to (Europe/Berlin)
at MPI Meeting rooms ( 313 )
Description
I will discuss the Vainshtein mechanism in theories of modified gravity and present an intriguing scaling argument of the Vainshtein radius. Then in the explicit framework of bi-gravity I will discuss several phenomenological implications of this theory on galactic and cluster scales. I will present new limits in the graviton mass parameter space and discuss the implications of this framework for the local dark matter density.