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arXiv 1907.09501hep-thmath.DG
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高曲率Bianchi恒等式、广义几何与$L_{\infty}$代数

Higher curvature Bianchi identities, generalised geometry and $L_{\infty}$ algebras

André Coimbra

摘要:

超引力中玻色子通量的Bianchi恒等式可以接受更高的量子和弦导数修正,最著名的是杂化理论$d H = \tfrac{1}{4}α'(\text{tr } F^2 - \text{tr } R^2)$。较少研究的是$R^4$阶的修改,例如,可能出现在M理论紧化的七形式通量的Bianchi等式中。我们认为,这样的修正似乎是不兼容的特殊广义几何描述的低阶超引力,似乎意味着规范代数的玻色子的潜力,不能写在一个(例外)柯朗括号。然而,我们发现,这个代数保留了$L_{\infty}$规范场理论的形式,它终止于一个10级multibracket的情况下,只涉及七种形式的流量。

英文摘要:

The Bianchi identities for bosonic fluxes in supergravity can receive higher derivative quantum and string corrections, the most well known being that of Heterotic theory $d H = \tfrac{1}{4}α'(\text{tr } F^2 - \text{tr } R^2)$. Less studied are the modifications at order $R^4$ that may arise, for example, in the Bianchi identity for the seven-form flux of M theory compactifications. We argue that such corrections appear to be incompatible with the exceptional generalised geometry description of the lower order supergravity, and seem to imply a gauge algebra for the bosonic potentials that cannot be written in terms of an (exceptional) Courant bracket. However, we show that this algebra retains the form of an $L_{\infty}$ gauge field theory, which terminates at a level ten multibracket for the case involving just the seven-form flux.

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