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arXiv · 1204.1027

Degrees of Freedom in Massive Gravity

D. Comelli·M. Crisostomi·F. Nesti·L. Pilo
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Abstract

We study in a systematic way a generic nonderivative (massive) deformation of general relativity using the Hamiltonian formalism. The number of propagating degrees of freedom is analyzed in a nonperturbative and background independent way. We show that the condition of having only five propagating degrees of freedom can be cast in a set of differential equations for the deforming potential. Though the conditions are rather restrictive, many solutions can be found.

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D. Comelli, M. Crisostomi, F. Nesti, L. Pilo. 2013-02-19. Degrees of Freedom in Massive Gravity. https://doi.org/10.1103/physrevd.86.101502

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