Generalized Einstein gravities and generalized AdS symmetries
arXiv:2208.06107 · doi:10.1016/j.nuclphysb.2022.115943
Abstract
We consider the curvatures 2 form asociated with AdSL4 valued one-form gauge connetion, and then we construct a four-dimensional action that generalize the Einstein-Hilbert gravity. It is shown that the Maxwell extension of Einstein gravity can be obtained from AdSL4-gravity making use of the Inonu-Wigner contraction method. In the same way, by gauging the AdSL5 spacetime algebra, the Einstein-Hilbert gravity is extended including the vector fields kab and ha which are associated with non-Abelian tensors and non Abelian vectors charges in the AdSL5 algebra. The B5 extension of Einstein gravity can be obtained from AdSL5 gravity using of the above mentioned contraction procedure. Some aspects of a gravity based on the algebra AdSL6 are considered in an appendix.
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