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arXiv 1807.02522hep-th
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自旋算符与共形场论中的缺陷

Spinning operators and defects in conformal field theory

Edoardo Lauria, Marco Meineri, Emilio Trevisani

摘要:

本文研究了共形场论中局部和扩展算子的关联函数的运动学。本文提出了一种新的方法来构造Lorentz群的任意玻色子表示中与原算符相关的张量结构。该配方产生嵌入空间中的显式结构,并且可以应用于任何局部算子的相关器,有或没有缺陷。然后,我们专注于两点函数的无痕对称原色的共形亏损的存在下,并解释如何计算共形块。特别是,我们说明了各种技术来生成批量通道块,无论是从径向膨胀或通过与差分算子作用在简单的种子块。对于缺陷通道,我们详细介绍了一种方法来计算封闭形式的块,在投影到混合对称表示的正交群。

英文摘要:

We study the kinematics of correlation functions of local and extended operators in a conformal field theory. We present a new method for constructing the tensor structures associated to primary operators in an arbitrary bosonic representation of the Lorentz group. The recipe yields the explicit structures in embedding space, and can be applied to any correlator of local operators, with or without a defect. We then focus on the two-point function of traceless symmetric primaries in the presence of a conformal defect, and explain how to compute the conformal blocks. In particular, we illustrate various techniques to generate the bulk channel blocks either from a radial expansion or by acting with differential operators on simpler seed blocks. For the defect channel, we detail a method to compute the blocks in closed form, in terms of projectors into mixed symmetry representations of the orthogonal group.

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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