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arXiv 2210.04855hep-thgr-qc
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三维全纯块量子引力

3D Quantum Gravity from Holomorphic Blocks

Etera R. Livine, Qiaoyin Pan

摘要:

三维引力是一种拓扑场论,它可以被量子化为从$\SU(2)$表示的再耦合的$\{3nj\}$ -符号建立的Ponzano-Regge状态和模型,其中自旋被解释为普朗克单位的量子化边长。它将平坦时空描述为具有固定边界度量编码长度尺度的三维细胞的粘合。在本文中,我们重新审视的Ponzano-Regge模型制定的旋量和重写的量子几何的三维细胞与全纯重耦合符号。这些符号被称为$\{6j\}$ -符号的Schwinger生成函数,它们只是生活在3D细胞边界上的2D伊辛模型的配分函数的平方逆。在临界状态下,它们还可以被解释为几何学中尺度不变的基本元素。我们展示了如何将它们粘合在一起形成一个离散的拓扑量子场论。这种三维量子引力路径积分的重新表述,与一个丰富的极结构的基本积木,打开了一扇新的大门,研究相变和连续极限的三维量子引力,并提供了一个新的扭曲之间的对偶结构的三维量子引力和二维共形理论。

英文摘要:

Three-dimensional gravity is a topological field theory, which can be quantized as the Ponzano-Regge state-sum model built from the $\{3nj\}$-symbols of the recoupling of the $\SU(2)$ representations, in which spins are interpreted as quantized edge lengths in Planck units. It describes the flat spacetime as gluing of three-dimensional cells with a fixed boundary metric encoding length scale. In this paper, we revisit the Ponzano-Regge model formulated in terms of spinors and rewrite the quantum geometry of 3D cells with holomorphic recoupling symbols. These symbols, known as Schwinger's generating function for the $\{6j\}$-symbols, are simply the squared inverse of the partition function of the 2D Ising model living on the boundary of the 3D cells. They can furthermore be interpreted, in their critical regime, as scale-invariant basic elements of geometry. We show how to glue them together into a discrete topological quantum field theory. This reformulation of the path integral for 3D quantum gravity, with a rich pole structure of the elementary building blocks, opens a new door toward the study of phase transitions and continuum limits in 3D quantum gravity, and offers a new twist on the construction of a duality between 3D quantum gravity and a 2d conformal theory.

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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