On "New Massive" 4D Gravity

Details On "New Massive" 4D Gravity On "New Massive" 4D Gravity

2012-02-07

arxiv.org/abs/1202.1501v1

Physics

High Energy Physics

High Energy Physics - Theory

17 pages

Scientific paper

We construct a four-dimensional (4D) gauge theory that propagates, unitarily, the five polarization modes of a massive spin-2 particle. These modes are described by a "dual" graviton gauge potential and the Lagrangian is 4th-order in derivatives. As the construction mimics that of 3D "new massive gravity", we call this 4D model (linearized) "new massive dual gravity". We analyse its massless limit, and discuss similarities to the Eddington-Schroedinger model.

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