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arXiv 2209.07296hep-th
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超空间中的II型双场论

Type II Double Field Theory in Superspace

Daniel Butter

摘要:

我们探讨了超空间中的第二类超对称双场论。二重监督本是正交辛群OSp(10,10)的一个元素|64),这也支配结构的广义超同态。与玻色子双场论不同,局部切空间必须从双洛伦兹群中得到增强,以消除监督存在的非物理成分,并定义协变挠率和曲率张量。这导致了一个无限层次的局部切空间对称,这是连接到超麦克斯韦$_\infty$代数。第二类的一个新特征是Ramond-Ramond扇区,它可以被编码为正交辛旋量(编码常规超空间中的超p-形式的复形)。它的协变场强bispinor本身作为supervierbein的一部分出现。我们提供了一个简明的讨论超空间Bianchi身份通过二维和展示如何恢复组件的超对称变换的第二型DFT。此外,我们展示了如何民主制定II型超空间可能会恢复规范固定。

英文摘要:

We explore type II supersymmetric double field theory in superspace. The double supervielbein is an element of the orthosymplectic group OSp(10,10|64), which also governs the structure of generalized superdiffeomorphisms. Unlike bosonic double field theory, the local tangent space must be enhanced from the double Lorentz group in order to eliminate unphysical components of the supervielbein and to define covariant torsion and curvature tensors. This leads to an infinite hierarchy of local tangent space symmetries, which are connected to the super-Maxwell$_\infty$ algebra. A novel feature of type II is the Ramond-Ramond sector, which can be encoded as an orthosymplectic spinor (encoding the complex of super p-forms in conventional superspace). Its covariant field strength bispinor itself appears as a piece of the supervielbein. We provide a concise discussion of the superspace Bianchi identities through dimension two and show how to recover the component supersymmetry transformations of type II DFT. In addition, we show how the democratic formulation of type II superspace may be recovered by gauge-fixing.

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