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arXiv · 1208.0038

On the Hamiltonian form of 3D massive gravity

Olaf Hohm·Alasdair Routh·Paul K. Townsend·Baocheng Zhang
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Abstract

We present a "Chern-Simons-like" action for the "general massive gravity" model propagating two spin-2 modes with independent masses in three spacetime dimensions (3D), and we use it to find a simple Hamiltonian form of this model. The number of local degrees of freedom, determined by the dimension of the physical phase space, agrees with a linearized analysis except in some limits, in particular that yielding "new topologically massive gravity", which therefore suffers from a linearization instability.

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Olaf Hohm, Alasdair Routh, Paul K. Townsend, Baocheng Zhang. 2012-09-14. On the Hamiltonian form of 3D massive gravity. https://doi.org/10.1103/physrevd.86.084035

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