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Covariant constraints in ghost free massive gravity

C. Deffayet 1, 2 J. Mourad 1, 2 G. Zahariade 1, 2 
APC (UMR_7164) - AstroParticule et Cosmologie, Institut für theoretische Physik
Abstract : We show that the reformulation of the de Rham-Gabadadze-Tolley massive gravity theory using vielbeins leads to a very simple and covariant way to count constraints, and hence degrees of freedom. Our method singles out a subset of theories, in the de Rham-Gabadadze-Tolley family, where an extra constraint, needed to eliminate the Boulware Deser ghost, is easily seen to appear. As a side result, we also introduce a new method, different from the Stuckelberg trick, to extract kinetic terms for the polarizations propagating in addition to those of the massless graviton.
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Submitted on : Tuesday, November 12, 2013 - 5:56:25 PM
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C. Deffayet, J. Mourad, G. Zahariade. Covariant constraints in ghost free massive gravity. Journal of Cosmology and Astroparticle Physics, Institute of Physics (IOP), 2013, 01, pp.032. ⟨10.1088/1475-7516/2013/01/032⟩. ⟨in2p3-00903701⟩



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