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arXiv 1606.07186hep-th
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S-褶皱中的超对称性增强与结

Supersymmetry Enhancement and Junctions in S-folds

Yosuke Imamura, Hirotaka Kato, Daisuke Yokoyama

摘要:

我们研究了Aharony和Tachikawa利用S-折叠中的弦结从${\cal N}=3$到${\cal N}=4$的超对称性增强。结所携带的中心荷在我们的分析中起着中心作用。我们考虑在一个特定的平面上的平面结。在S折叠之前,它们带有两个复杂的中心荷,我们用$Z$和$\bar Z$表示。S折叠投影消除了$\bar Z$和四个超荷中的一个,当超对称性增强时,$\bar Z$应该通过某种非微扰机制再现。对于期望给出$SU(3)$和$SO(5)$ ${\cal N}=4$理论的$\mathbb{Z}_3$和$\mathbb{Z}_4$ S-折叠模型,我们比较了它们的结谱与相同理论的微扰膜实现的结谱。我们建立一对一的对应关系,使$Z$重合。利用对应关系,我们还给出了增强中心荷$\bar Z$的表达式.

英文摘要:

We study supersymmetry enhancement from ${\cal N}=3$ to ${\cal N}=4$ proposed by Aharony and Tachikawa by using string junctions in S-folds. The central charges carried by junctions play a central role in our analysis. We consider planer junctions in a specific plane. Before the S-folding they carry two complex central charges, which we denote by $Z$ and $\bar Z$. The S-fold projection eliminates $\bar Z$ as well as one of the four supercharges, and when the supersymmetry is enhanced $\bar Z$ should be reproduced by some non-perturbative mechanism. For the models of $\mathbb{Z}_3$ and $\mathbb{Z}_4$ S-folds which are expected to give $SU(3)$ and $SO(5)$ ${\cal N}=4$ theories we compare the junction spectra with those in perturbative brane realization of the same theories. We establish one-to-one correspondence so that $Z$ coincides. By using the correspondence we also give an expression for the enhanced central charge $\bar Z$.

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