Massive Gravity in Three Dimensions
Laboratoire de Physique Théorique et Hautes Energies · University of Groningen · +1 more institution
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Abstract
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 N-extended supergravity, and we present a "cosmological" extension that admits an anti-de Sitter vacuum.
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Authors
3Topics & keywords
Topics
Keywords
- Physics
- Supergravity
- Mathematical physics
- Massive gravity
- Spacetime
- Helicity
- Extension (predicate logic)
- Spin (aerodynamics)
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