A bstract We initiate a systematic study of the self-interactions massive spin-2 “graviton” consistent with up to $$ \mathcal{N} N = 4 supersymmetry. Using recently developed on-shell superspace formalism, we construct most general set cubic graviton amplitudes in form all supersymmetry and Lorentz invariance...

In this note we study the properties of linearized gravitational excitations in the new massive gravity theory in asymptotically AdS3 spacetime and find that there is also a critical point for the mass parameter at which massive gravitons become massless as in topological massive gravity in AdS3. However, at this critical point in the new massive gravity the energy of all branches of highest we...

In this note we study the properties of linearized gravitational excitations in the new massive gravity theory in asymptotically AdS3 spacetime and find that there is also a critical point for the mass parameter at which massive gravitons become massless as in topological massive gravity in AdS3. However, at this critical point in the new massive gravity the energy of all branches of highest we...

In this note we study the properties of linearized gravitational excitations in the new massive gravity theory in asymptotically AdS3 spacetime and find that there is also a critical point for the mass parameter at which massive gravitons become massless as in topological massive gravity in AdS3. However, at this critical point in the new massive gravity the energy of all branches of highest we...

The formulation of massive gravity as bigravity is discussed. We argue that bigravity is more than a tool to tackle massive deformation of gravity.

We construct four-dimensional covariant nonlinear theories of massive gravity which are ghost-free in the decoupling limit to all orders. These theories resum explicitly all the nonlinear terms of an effective field theory of massive gravity. We show that away from the decoupling limit the Hamiltonian constraint is maintained at least up to and including quartic order in nonlinearities, hence e...