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arXiv 0905.3448hep-th
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对称乘积轨道图

Diagrams for Symmetric Product Orbifolds

Ari Pakman, Leonardo Rastelli, Shlomo S. Razamat

摘要:

我们发展了二维共形场论对称乘积轨道的图解语言。扭曲算子的关联函数被写为图的和:每个图对应于从其中场是单值的表面到其中插入扭曲算子的基球的分支覆盖映射。这种图解语言便于研究大N极限,并使对称乘积轨道和自由非阿贝尔规范理论之间的类比更加透明。我们给出了计算扭转场四点相关器的领先大N贡献的通用算法。

英文摘要:

We develop a diagrammatic language for symmetric product orbifolds of two-dimensional conformal field theories. Correlation functions of twist operators are written as sums of diagrams: each diagram corresponds to a branched covering map from a surface where the fields are single-valued to the base sphere where twist operators are inserted. This diagrammatic language facilitates the study of the large N limit and makes more transparent the analogy between symmetric product orbifolds and free non-abelian gauge theories. We give a general algorithm to calculate the leading large N contribution to four-point correlators of twist fields.

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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