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arXiv 2101.06252hep-thgr-qcmath-phmath.MP
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关于JT引力中精确双定域关联函数的微扰展开

On the perturbative expansion of exact bi-local correlators in JT gravity

Luca Griguolo, Jacopo Papalini, Domenico Seminara

摘要:

本文研究了Jackiw-Teitelboim(JT)引力中的双定域关联函数的微扰级数,其中物质CFT算子的权为正的$λ$.从已知的精确表达式出发,用连续傅里叶变换和规范理论方法,我们再现了首阶以上的Schwarzian半经典展开。计算是针对任意温度和有限的边界距离,在磁盘和喇叭拓扑的情况下。给出了用广义Apostol-Bernoulli多项式表示的任意阶微扰结果(对于$λ\in \mathbb{N}/2$)的公式.零温度的限制,然后考虑,获得一个紧凑的表达式,允许讨论的渐近行为的扰动系列。最后,我们强调的可能性,以表达确切的结果作为特定的组合Mordell积分。

英文摘要:

We study the perturbative series associated to bi-local correlators in Jackiw-Teitelboim (JT) gravity, for positive weight $λ$ of the matter CFT operators. Starting from the known exact expression, derived by CFT and gauge theoretical methods, we reproduce the Schwarzian semiclassical expansion beyond leading order. The computation is done for arbitrary temperature and finite boundary distances, in the case of disk and trumpet topologies. A formula presenting the perturbative result (for $λ\in \mathbb{N}/2$) at any given order in terms of generalized Apostol-Bernoulli polynomials is also obtained. The limit of zero temperature is then considered, obtaining a compact expression that allows to discuss the asymptotic behaviour of the perturbative series. Finally we highlight the possibility to express the exact result as particular combinations of Mordell integrals.

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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