paper

Generalized Chern-Simons higher-spin gravity theories in three dimensions

arXiv:1712.09975 · doi:10.1016/j.nuclphysb.2018.07.005

Abstract

The coupling of spin-3 gauge fields to three-dimensional Maxwell and -Lorentz gravity theories is presented. After showing how the usual spin-3 extensions of the and the Poincaré algebras in three dimensions can be obtained as expansions of algebra, the procedure is generalized so as to define new higher-spin symmetries. Remarkably, the spin-3 extension of the Maxwell symmetry allows one to introduce a novel gravity model coupled to higher-spin topological matter with vanishing cosmological constant, which in turn corresponds to a flat limit of the -Lorentz case. We extend our results to define two different families of higher-spin extensions of three-dimensional Einstein gravity.

version 3, 28 pages, accepted version in Nuclear Physics B

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