Andrew J. Tolley

Oct 25, 2023 | link.aps.org | Claudia de Rham |Blackett Laboratory |Andrew J. Tolley |Toby Wiseman

We present a formulation of ghost-free massive gravity with flat reference metric that exhibits the full nonlinear constraint algebraically, in a way that can be directly implemented for numerical simulations. Motivated by the presence of higher order operators in the low-energy effective description of massive gravity, we show how the inclusion of higher-order gradient (dissipative) terms leads to a well-posed formulation of its dynamics.