arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2602.09260hep-thmath-phmath.MP
收藏

具有分数R对称性激发的四点函数在D1-D5 CFT中

Four-point functions with fractional R-symmetry excitations in the D1-D5 CFT

Universidade Federal de Pernambuco(伯南布哥联邦大学);Universidade Federal do Espírito Santo(圣埃斯皮里图联邦大学);Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences(保加利亚科学院核能研究所)

V. A. Souza Alves, Andre Alves Lima, G. M. Sotkov, M. Stanishkov

AI总结:

研究D1-D5 CFT中分数R对称性激发的四点函数,推导出具有特定扭矩结构的显式公式,并探讨其与Hurwitz块和融合规则的关系。

摘要:

我们研究了具有D1-D5 CFT中R对称性电流分数模式激发的关联函数。我们展示了分数模式激发如何提升到与关联函数相关的覆盖表面,作为整数模式激发的特定求和,系数可通过覆盖映射中的贝尔多项式精确确定。我们考虑了两个chiral/anti-chiral NS场、Ramond基态以及驱动CFT远离自由点的扭矩二标量模形变算子的四点函数。我们为具有扭矩结构(n)-(2)-(2)-(n)和(n1)(n2)-(2)-(2)-(n1)(n2)的这些函数推导出显式公式,后者涉及双循环场。四点函数的最终答案总是只依赖于基空间交叉比率的提升。我们讨论了这如何与不同置换共轭类的Hurwitz块、相应的OPE通道和融合规则相关联。

英文摘要:

We study correlation functions with fractional-mode excitations of the R-symmetry currents in D1-D5 CFT. We show how fractional-mode excitations lift to the covering surface associated with correlation functions as a specific sum of integer-mode excitations, with coefficients that can be determined exactly from the covering map in terms of Bell polynomials. We consider the four-point functions of fractional excitations of two chiral/anti-chiral NS fields, Ramond ground states and the twist-two scalar modulus deformation operator that drives the CFT away from the free point. We derive explicit formulas for classes of these functions with twist structures $(n)$-$(2)$-$(2)$-$(n)$ and $(n_1)(n_2)$-$(2)$-$(2)$-$(n_1)(n_2)$, the latter involving double-cycle fields. The final answer for the four-point functions always depends only on the lift of the base-space cross-ratio. We discuss how this relates to Hurwitz blocks associated with different conjugacy classes of permutations, the corresponding OPE channels and fusion rules.

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。

↑