Massive gravity in Minkowski space via the gravitational Higgs mechanism

@article{Kakushadze2007MassiveGI,
  title={Massive gravity in Minkowski space via the gravitational Higgs mechanism},
  author={Zurab Kakushadze},
  journal={Physical Review D},
  year={2007},
  volume={77},
  pages={024001}
}
In the gravitational Higgs mechanism graviton components acquire mass in the process of spontaneous breaking of diffeomorphisms (via scalar vacuum expectation values). Recently, the gravitational Higgs mechanism was discussed in the context of obtaining massive gravity directly in four dimensions. We discuss a setup, with all diffeomorphisms spontaneously broken by scalars, where the gravitational Higgs mechanism results in massive gravity in Minkowski space with no nonunitary propagating modes… 

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