Massive Gravity in Three Dimensions

Details Massive Gravity in Three Dimensions Massive Gravity in Three Dimensions

2009-01-13

arxiv.org/abs/0901.1766v3

Phys.Rev.Lett.102:201301,2009

Physics

High Energy Physics

High Energy Physics - Theory

Minor corrections plus a further correction to discussion of supersymmetry in adS vacua, Version to be published

Scientific paper

10.1103/PhysRevLett.102.201301

A particular higher-derivative extension of the Einstein-Hilbert action in three spacetime dimensions is shown to be equivalent at the linearized level to the (unitary) Pauli-Fierz action for a massive spin-2 field. A more general model, which also includes `topologically-massive' gravity as a special case, propagates the two spin 2 helicity states with different masses. We discuss the extension to massive ${\cal N}$-extended supergravity, and we present a `cosmological' extension that admits an anti-de Sitter vacuum.

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