The superconformal index and an elliptic algebra of surface defects

The superconformal index and an elliptic algebra of surface defects
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表面缺陷的超共形指数和椭圆代数

DOI:
10.1007/jhep10(2014)062
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发表时间:
2014
影响因子:
5.4
通讯作者:
Bullimore M
Bullimore M
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Bullimore M

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本文继续研究存在表面缺陷的四维= 2类理论的超共形指数。我们的主要结果是构造了一个由差分算子组成的代数,其元素被标记为A N−1的不可约表示。对于完全反对称张量表示,这些差分算子是椭圆型rujsenaars - schneider系统的哈密顿算子。代数的结构常数是Littlewood-Richardson系数的椭圆推广。在Macdonald极限下,我们识别了超共形指数二维TQFT解释中的差分算子和局部算子。我们还研究了作用于三球配分函数上的差分算子的降维,其中它们表征了圆上支撑的超对称缺陷,并证明了它们在镜像对称下转化为超对称Wilson环。最后,我们通过将四维= 2*理论作为s -对偶域壁嵌入到四球上,比较了在四维= 2*理论中产生Hooft环的差分算子。
In this paper we continue the study of the superconformal index of four-dimensional= 2 theories of classin the presence of surface defects. Our main result is the construction of an algebra of difference operators, whose elements are labeled by irreducible representations of A N− 1. For the fully antisymmetric tensor representations these difference operators are the Hamiltonians of the elliptic Ruijsenaars-Schneider system. The structure constants of the algebra are elliptic generalizations of the Littlewood-Richardson coefficients. In the Macdonald limit, we identify the difference operators with local operators in the two-dimensional TQFT interpretation of the superconformal index. We also study the dimensional reduction to difference operators acting on the three-sphere partition function, where they characterize supersymmetric defects supported on a circle, and show that they are transformed to supersymmetric Wilson loops under mirror symmetry. Finally, we compare to the difference operators that create’t Hooft loops in the four-dimensional= 2* theory on a four-sphere by embedding the three-dimensional theory as an S-duality domain wall.
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