Ghosts in Massive Gravity

by Dr Claudia De Rham (UNIGE)

Wednesday 22 Jun 2011, 14:00 → 15:00 Europe/Zurich

TH Theory Conference Room (CERN)

Whilst the theory of General Relativity is easily the force which has successfully passed the largest variety of tests, the late-time acceleration of the Universe might be the first signs of its breakdown on large distance scales. As such, theories of massive gravity could play a crucial role. After reviewing the difficulties in constructing healthy theories of massive gravity, I will construct an explicit covariant theory of massive gravity which bypasses most of the usual issues and strongly suggests the existence of an entirely ghost-free classical theory of massive gravity.