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arXiv 2402.02584hep-th
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SYK 关联函数来自二维Liouville-de Sitter引力

SYK Correlators from 2D Liouville-de Sitter Gravity

Herman Verlinde, Mengyang Zhang

AI总结:

本文提出二维Liouville-de Sitter引力作为双重缩放SYK模型的引力对偶,通过计算圆盘边界两点函数,精确复现了DSSYK关联函数的所有阶结果,并阐述了其源于三维de Sitter引力量子化的机制。

摘要:

我们引入并研究了一个候选的双重缩放SYK模型的引力对偶,其形式为一个精确可解的二维de Sitter引力模型,该模型由两个具有复中心荷的类空Liouville CFT组成,且中心荷之和满足 $c_+ + c_- = 26$。在文献[1]中已证明,在半经典极限下,双重SYK模型中物理算子的两点函数与三维de Sitter空间中无质量标量场的格林函数相匹配。作为该对偶性的进一步证据,我们改编了Zamolodchikov的一个结果,计算了二维Liouville-de Sitter引力模型在圆盘上的边界两点函数,并发现它精确重现了DSSYK两点函数在$\lambda=p^2/N$的所有阶数上的结果。我们描述了二维Liouville-de Sitter引力模型如何从三维de Sitter引力的量子化中产生。

英文摘要:

We introduce and study a candidate gravity dual to the double scaled SYK model in the form of an exactly soluble 2D de Sitter gravity model consisting of two spacelike Liouville CFTs with complex central charge adding up to $c_+ + c_- = 26$. In [1] it was shown that the two-point function of physical operators in a doubled SYK model matches in the semi-classical limit with the Green's function of a massive scalar field in 3D de Sitter space. As further evidence of the duality, we adapt a result from Zamolodchikov to compute the boundary two-point function of the 2D Liouville-de Sitter gravity model on a disk and find that it reproduces the exact DSSYK two-point function to all orders in $λ=p^2/N$. We describe how the 2D Liouville-de Sitter gravity model arises from quantizing 3D de Sitter gravity.

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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