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arXiv 2004.14087hep-thmath-phmath.MP
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$L_\infty$ -代数与膜西格玛模型

$L_\infty$-algebras and membrane sigma models

Clay James Grewcoe, Larisa Jonke

摘要:

膜σ模型已被用于非几何通量背景下封闭弦的系统描述。特别是,相应的作用泛函的规范不变性的条件有关的比安基恒等式的通量。在这方面的贡献,我们将展示如何表达这些Bianchi身份的同伦关系的基本$L_\infty$ -代数的情况下的柯朗西格玛模型。我们认为,这一结果可以用来理解双场论和相应的膜σ模型的约束结构。

英文摘要:

Membrane sigma-models have been used for the systematic description of closed strings in non-geometric flux backgrounds. In particular, the conditions for gauge invariance of the corresponding action functionals were related to the Bianchi identities for the fluxes. In this contribution we demonstrate how to express these Bianchi identities in terms of homotopy relations of the underlying $L_\infty$-algebra for the case of the Courant sigma-model. We argue that this result can be utilized in understanding the constraint structure of Double Field Theory and the corresponding membrane sigma-model.

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