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arXiv 1805.03220hep-th
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Leibniz-Chern-Simons理论与例外场论的相位

Leibniz-Chern-Simons Theory and Phases of Exceptional Field Theory

Olaf Hohm, Henning Samtleben

摘要:

本文基于李代数的推广--Leibniz(或Loday)代数,讨论了Chern-Simons理论在三维空间中的推广.这种理论的特殊情况出现在规范超引力中,其中莱布尼茨代数是根据非规范极限的整体(李)对称代数和嵌入张量定义的。我们表明,莱布尼茨代数的广义同态例外场论可以类似地从一个李代数,描述了增强对称性的一个“无规范阶段”的理论。此外,我们表明,一个“拓扑相位”的${\rm E}_{8(8)}$例外场论可以被解释为一个Chern-Simons理论的代数统一的三维庞加莱代数和莱布尼茨代数的${\rm E}_{8(8)}$广义代数同态。

英文摘要:

We discuss a generalization of Chern-Simons theory in three dimensions based on Leibniz (or Loday) algebras, which are generalizations of Lie algebras. Special cases of such theories appear in gauged supergravity, where the Leibniz algebra is defined in terms of the global (Lie) symmetry algebra of the ungauged limit and an embedding tensor. We show that the Leibniz algebra of generalized diffeomorphisms in exceptional field theory can similarly be obtained from a Lie algebra that describes the enhanced symmetry of an `ungauged phase' of the theory. Moreover, we show that a `topological phase' of ${\rm E}_{8(8)}$ exceptional field theory can be interpreted as a Chern-Simons theory for an algebra unifying the three-dimensional Poincaré algebra and the Leibniz algebra of ${\rm E}_{8(8)}$ generalized diffeomorphisms.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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