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arXiv 1706.04425hep-th
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小弦的束缚态与对称轨道CFTs

Bound States of Little Strings and Symmetric Orbifold CFTs

Ambreen Ahmed, Stefan Hohenegger, Amer Iqbal, Soo-Jong Rey

摘要:

我们研究了五维规范理论中小弦在极限下的BPS束缚态,在极限下它们实现了小弦。后者具有规范群$U(M)^N$,并且产生于$A_{M-1} \times A_{N-1}$型的$(1,0)$弦论的紧化。我们发现的证据表明,某个子类的电荷$(k,\ldots,k)$($k\geq 1$)串的配分函数是表示为对称orbifold西格玛模型的配分函数,其目标空间正是对称产品的模空间的单极与电荷$(1, \ldots, 1)$。

英文摘要:

We study BPS bound states of little strings in a limit where they realise monopole strings in five dimensional gauge theories. The latter have gauge group $U(M)^N$ and arise from compactification of $(1,0)$ little string theories of type $A_{M-1} \times A_{N-1}$. We find evidence that the partition function of a certain subclass of monopole strings of charge $(k,\ldots,k)$ ($k\geq 1$) is expressible as the partition function of a symmetric orbifold sigma model, whose target space is precisely the symmetric product of the moduli space of monopoles with charge $(1, \ldots, 1)$.

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