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arXiv 2104.04516math-phhep-thmath.MPmath.RT
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来自拓扑递归的$\u0026#x2131;$-代数的Whittaker向量

Whittaker vectors for $\mathcal{W}$-algebras from topological recursion

Gaëtan Borot, Vincent Bouchard, Nitin Kumar Chidambaram, Thomas Creutzig

AI总结:

本研究将W-代数模的Whittaker向量与高阶Airy结构配分函数等同,证明Gaiotto向量可通过非交换Chekhov-Eynard-Orantin拓扑递归计算,构造了A、B型的拓扑递归,为纯N=2四维超对称规范理论的Nekrasov配分函数提供拓扑递归求解方法。

摘要:

我们将$\u0026#x2131;_k(\u0026#x1D522;)$-模的Whittaker向量与高阶Airy结构的配分函数等同起来。这意味着,对于复单李群$G$,描述$\u0026#x2119;^2$上$G$-丛模空间的合适紧化的等变上同调中基本类的Gaiotto向量,可以通过Chekhov-Eynard-Orantin拓扑递归的非交换版本来计算。我们针对A、B、C、D型的Gaiotto向量建立了其与高阶Airy结构的联系,并显式构造了A型(任意水平)和B型(自对偶水平)的拓扑递归。在物理学层面,这意味着纯$\u0026#x2139;=2$四维超对称规范理论的Nekrasov配分函数可以通过拓扑递归方法求解。

英文摘要:

We identify Whittaker vectors for $\mathcal{W}_k(\mathfrak{g})$-modules with partition functions of higher Airy structures. This implies that Gaiotto vectors, describing the fundamental class in the equivariant cohomology of a suitable compactification of the moduli space of $G$-bundles over $\mathbb{P}^2$ for $G$ a complex simple Lie group, can be computed by a non-commutative version of the Chekhov-Eynard-Orantin topological recursion. We formulate the connection to higher Airy structures for Gaiotto vectors of type A, B, C, and D, and explicitly construct the topological recursion for type A (at arbitrary level) and type B (at self-dual level). On the physics side, it means that the Nekrasov partition function for pure $\mathcal{N} = 2$ four-dimensional supersymmetric gauge theories can be accessed by topological recursion methods.

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