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arXiv · 1801.07958

Beyond dRGT as Mimetic Massive

Alexey Golovnev
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Abstract

An interesting proposal has recently been made to extend massive gravity models beyond dRGT by a disformal transformation of the metric. In this Letter we want to note that it can be viewed as a mimetic extension of dRGT gravity which enormously simplifies the Hamiltonian analysis. In particular, pure gravity sector is equivalent to the usual dRGT gravity coupled to a constrained scalar field. And we also give some comments about possible matter couplings.

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Alexey Golovnev. 2018-01-24. Beyond dRGT as Mimetic Massive. https://doi.org/10.1016/j.physletb.2018.02.044

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