Twisted Chiral Algebras of Class S and Mixed Feigin-Frenkel Gluing.

Twisted Chiral Algebras of Class S and Mixed Feigin-Frenkel Gluing.
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DOI:
10.1007/s00220-022-04556-x
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发表时间:
2023
影响因子:
2.4
通讯作者:
Nair, Sujay
Nair, Sujay
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Beem, Christopher;Nair, Sujay

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四维超共形场论和顶点算子代数之间的对应,当应用于类的理论时,导致了丰富的VOA族,这些VOA族被赋予类的monicker手征代数。Tomoyuki Arakawa在Arakawa中提出了这些顶点算子代数的一个非常一致的构造(Chiral algebras of class and Moore-Tachikawa辛簇,2018. arXiv:1811.01577 [math.RT])。Arakawa(2018)的构造将简单李代数的选择作为输入,并且无论是否是简单的laced都同样适用。然而,在非简单的情况下,得到的VOA并不以任何明确的方式对应于已知的四维理论。另一方面,涉及非单缀对称代数的类理论的标准实现需要包含外自同构扭曲线,这需要进一步发展Arakawa(2018)的方法。在本文中,我们给出了这些进一步的发展,并提出了大多数手征代数类的定义与外自同构扭线。我们表明,我们的定义通过了一些一致性检查,并指出了一些重要的开放问题。
The correspondence between four-dimensional superconformal field theories and vertex operator algebras, when applied to theories of class , leads to a rich family of VOAs that have been given the monicker chiral algebras of class . A remarkably uniform construction of these vertex operator algebras has been put forward by Tomoyuki Arakawa in Arakawa (Chiral algebras of class and Moore–Tachikawa symplectic varieties, 2018. arXiv:1811.01577 [math.RT]). The construction of Arakawa (2018) takes as input a choice of simple Lie algebra , and applies equally well regardless of whether is simply laced or not. In the non-simply laced case, however, the resulting VOAs do not correspond in any clear way to known four-dimensional theories. On the other hand, the standard realisation of class theories involving non-simply laced symmetry algebras requires the inclusion of outer automorphism twist lines, and this requires a further development of the approach of Arakawa (2018). In this paper, we give an account of those further developments and propose definitions of most chiral algebras of class with outer automorphism twist lines. We show that our definition passes some consistency checks and point out some important open problems.
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