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arXiv 1407.5330hep-th
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在5D超引力中解开轴子膨胀

Unlocking the Axion-Dilaton in 5D Supergravity

Joris Raeymaekers, Dieter Van den Bleeken

摘要:

我们重新讨论了具有动力学超多重态的五维非规范N=1超引力的超对称解。特别是,我们专注于截断的轴子,轴子包含在通用超多重态。相关的解决方案是纤维化的四维Kahler基与全纯轴子。我们专注于解决方案与额外的对称性和分类的Killing矢量保持额外的结构所施加的超对称性,特别是我们扩展了现有的分类的解决方案与空间类U(1)等距的情况下,Killing矢量是旋转的。我们阐述了一般的几何方面,我们说明了一些简单的例子。我们特别讨论的解决方案描述的M2膜,例如发挥作用的黑洞解构建议微观几何的反作用。

英文摘要:

We revisit supersymmetric solutions to five dimensional ungauged N=1 supergravity with dynamic hypermultiplets. In particular we focus on a truncation to the axion-dilaton contained in the universal hypermultiplet. The relevant solutions are fibrations over a four-dimensional Kahler base with a holomorphic axion-dilaton. We focus on solutions with additional symmetries and classify Killing vectors which preserve the additional structure imposed by supersymmetry; in particular we extend the existing classification of solutions with a space-like U(1) isometry to the case where the Killing vector is rotational. We elaborate on general geometrical aspects which we illustrate in some simple examples. We especially discuss solutions describing the backreaction of M2-branes, which for example play a role in the black hole deconstruction proposal for microstate geometries.

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