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arXiv 1012.1320hep-th
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具有Ramond通量的非交换T-对偶几何

On non-abelian T-dual geometries with Ramond fluxes

Konstadinos Sfetsos, Daniel C. Thompson

摘要:

我们展示了如何实现T-对偶沿非阿贝尔等距的背景与非零拉蒙领域。当等距群的维数为奇(偶)时,对偶交换(保持)了理论的手征性。在某些情况下,非阿贝尔对偶性会导致巨大的IIA型背景。我们提供了两个例子,对偶SU(2)等距子群$AdS_5\times S^5$和$AdS_3\times S^3\times T^4$。由此产生的对偶几何继承了原来的AdS因子,但具有减少等距的横向空间,并且仅保留了原来超对称的一半。$AdS_5\times S^5$的非交换对偶具有与N=2超共形理论的引力相关的M-理论提升。我们评论的一个可能的解释,这是一个高自旋极限。

英文摘要:

We show how to implement T-duality along non-abelian isometries in backgrounds with non-vanishing Ramond fields. When the dimension of the isometry group is odd (even) the duality swaps (preserves) the chirality of the theory. In certain cases a non-abelian duality can result in a massive type-IIA background. We provide two examples by dualising SU(2) isometry subgroups in $AdS_5\times S^5$ and $AdS_3\times S^3\times T^4$. The resultant dual geometries inherit the original AdS factors but have transverse spaces with reduced isometry and preserve only half of the original supersymmetry. The non-abelian dual of $AdS_5\times S^5$ has an M-theory lift which is related to the gravity duals of N=2 superconformal theories. We comment on a possible interpretation of this as a high spin limit.

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