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arXiv 1806.09563hep-th
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多点超共形块的c-递归NS扇区

c-Recursion for multi-point superconformal blocks. NS sector

V. A. Belavin, R. V. Geiko

摘要:

我们开发了一个递归的方法来计算Neveu-Schwarz共形块与n-穿孔黎曼曲面。本文推广了[1]中关于维拉索罗代数的结果。该方法是基于对超共形块的解析性质的分析,这些块被认为是中心荷c的函数。它包括两个主要成分:研究的奇异行为的共形块和分析其渐近性质时,c趋于无穷大。该构造适用于计算不同拓扑结构的多点块。我们考虑了亏格0和亏格1具有不同数目的穿孔的一些例子。作为一个副产品,我们提出了一种新的方法来解决递归关系,这给出了更有效的计算过程,可以应用到SCFT的情况下,以及纯Virasoro块。

英文摘要:

We develop a recursive approach to computing Neveu-Schwarz conformal blocks associated with n-punctured Riemann surfaces. This work generalizes the results of [1] obtained recently for the Virasoro algebra. The method is based on the analysis of the analytic properties of the superconformal blocks considered as functions of the central charge c. It consists of two main ingredients: the study of the singular behavior of the conformal blocks and the analysis of their asymptotic properties when c tends to infinity. The proposed construction is applicable for computing multi-point blocks in different topologies. We consider some examples for genus zero and one with different numbers of punctures. As a by-product, we propose a new way to solve the recursion relations, which gives more efficient computational procedure and can be applied to SCFT case as well as to pure Virasoro blocks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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