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arXiv · 2001.09983

Non-Abelian U-duality for membrane

Yuho Sakatani·Shozo Uehara
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Abstract

T-duality of string theory can be extended to the Poisson-Lie T-duality when the target space has a generalized isometry group given by a Drinfel'd double. In M-theory, T-duality is understood as a subgroup of U-duality, but the non-Abelian extension of U-duality is still a mystery. In this paper, we study membrane theory on a curved background with a generalized isometry group given by the $\mathcal{E}_n$ algebra. This provides a natural setup to study non-Abelian U-duality because the $\mathcal{E}_n$ algebra has been proposed as a U-duality extension of the Drinfel'd double. We show that the standard treatment of Abelian U-duality can be extended to the non-Abelian setup. However, a famous issue in Abelian U-duality still exists in the non-Abelian extension.

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Yuho Sakatani, Shozo Uehara. 2020-04-23. Non-Abelian U-duality for membrane. https://doi.org/10.1093/ptep%2Fptaa063

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