# Evidence for and obstructions to nonlinear partially massless gravity

@article{Rham2013EvidenceFA, title={Evidence for and obstructions to nonlinear partially massless gravity}, author={C. D. Rham and Kurt Hinterbichler and Rachel A. Rosen and A. Tolley}, journal={Physical Review D}, year={2013}, volume={88}, pages={024003} }

Nonlinear partially massless (PM) gravity, if it exists, is a theory of massive gravity in which the graviton has four propagating degrees of freedom. In PM gravity, a scalar gauge symmetry removes one of the five modes of the massive graviton. This symmetry ties the value of the cosmological constant to the mass of the graviton, which in turn can be kept small in a technically natural way. Thus, PM gravity could offer a compelling solution to the old cosmological constant problem. In this work… Expand

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