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arXiv 1912.09754hep-th
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AdS $_3$中的缠绕模式和反射对称性

Winding modes and the reflection symmetry in AdS$_3$

Sergio Iguri, Nicolas Kovensky, Leila Maestri, Lucas Martín

摘要:

计算了SL($2,\mathbb R$)-WZNW模型在绕组扇区中两点函数的接触项。在回顾了该模型及其欧氏模型的一些共性之后,我们讨论了谱流扇区的反射对称性。我们定义了相应的交织算子,并用它来寻找传播子的接触项的显式形式的顶点携带任意数量的谱流。最后,我们加强了已知的积分表达式的一个单流顶点,以重现这种接触项直接在时空图片。

英文摘要:

We compute the contact term of the two-point function for the SL($2,\mathbb R$)-WZNW model in the winding sector. After reviewing some generalities of the model and its Euclidean counterpart, we discuss the reflection symmetry for the spectral flowed sector. We define the corresponding intertwining operator and use it to find the explicit form of the contact term of the propagator for a vertex carrying an arbitrary amount of spectral flow. Finally, we enhance the already known integral expression of a singly flowed vertex in order to reproduce such contact term directly in the space-time picture.

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