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Paper detail

Degrees of Freedom in Massive Gravity

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.

preprint2013arXivOpen access
D. ComelliM. CrisostomiF. NestiL. Pilo
hep-phgr-qchep-th
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D. ComelliM. CrisostomiF. NestiL. Pilo

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