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arXiv 2009.14710hep-thmath.QAmath.RT
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$F_{24}$的乐趣

Fun with $F_{24}$

Sarah M. Harrison, Natalie M. Paquette, Daniel Persson, Roberto Volpato

摘要:

研究了由24个手征自由费米子给出的全纯$c=12$超共形场论(SCFT)$F_{24}$的一些特殊性质.构造了$F_{24}$上紧化的手征超弦的8个不同“物理”态的李超代数,并证明了它们都具有Borcherds-Kac-Moody超代数的结构.这就产生了一族这样的超代数的新例子。模型依赖于$F_{24}$上的$\mathcal{N}=1$超电流的选择,允许的选择由24维的半单李代数标记。我们还讨论了如何$F_{24}$,任何这样的选择的超电流,可以通过orbifolding从另一个著名的$c=12$全纯SCFT,$\mathcal{N}=1$超对称版本的手性CFT的基础上$E_8$晶格。

英文摘要:

We study some special features of $F_{24}$, the holomorphic $c=12$ superconformal field theory (SCFT) given by 24 chiral free fermions. We construct eight different Lie superalgebras of "physical" states of a chiral superstring compactified on $F_{24}$, and we prove that they all have the structure of Borcherds-Kac-Moody superalgebras. This produces a family of new examples of such superalgebras. The models depend on the choice of an $\mathcal{N}=1$ supercurrent on $F_{24}$, with the admissible choices labeled by the semisimple Lie algebras of dimension 24. We also discuss how $F_{24}$, with any such choice of supercurrent, can be obtained via orbifolding from another distinguished $c=12$ holomorphic SCFT, the $\mathcal{N}=1$ supersymmetric version of the chiral CFT based on the $E_8$ lattice.

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