What can we learn from modifying gravity? (video)

Claudia de Rham, Assistant Professor of Physics, Case Western Reserve University

The past decade has seen an increased interest in theories of modified gravity. If the particle carrier of the gravitational force had a mass, gravity could behave differently than GR on cosmological scales thereby potentially tackling the dark energy and cosmological constant problems. I will present several theoretical aspects of massive gravity with an emphasize on the role played by the Vainshtein mechanism as well as its relevance for cosmology.