78 citations · 465 across the 24 of their papers we have counts for
3 papers · 1 filter
Null Energy Condition violations in bimetric gravity
Valentina Baccetti, Prado Martin-Moruno, Matt Visser
We consider the effective stress-energy tensors for the foreground and background sectors in ghost-free bimetric gravity. By considering the symmetries of the theory, we show that…
Gordon and Kerr-Schild ansatze in massive and bimetric gravity
Valentina Baccetti, Prado Martin-Moruno, Matt Visser
We develop the "generalized Gordon ansatz" for the ghost-free versions of both massive and bimetric gravity, an ansatz which is general enough to include almost all spacetimes comm…
Massive gravity from bimetric gravity
Valentina Baccetti, Prado Martin-Moruno, Matt Visser
We discuss the subtle relationship between massive gravity and bimetric gravity, focusing particularly on the manner in which massive gravity may be viewed as a suitable limit of b…