Degrees of Freedom in Massive Gravity

D. Comelli; F. Nesti; L. Pilo; M. Crisostomi

Degrees of Freedom in Massive Gravity

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arxiv 1204.1027 v3 pith:7YGCO276 submitted 2012-04-04 hep-th gr-qchep-ph

Degrees of Freedom in Massive Gravity

D. Comelli , M. Crisostomi , F. Nesti , L. Pilo This is my paper

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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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