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arXiv 2407.02649hep-thgr-qcmath-phmath.MP
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作为随机系综的3d引力

3d Gravity as a random ensemble

Daniel L. Jafferis, Liza Rozenberg, Gabriel Wong

AI总结:

该研究为矩阵张量模型与含拓扑求和的AdS₃引力的对偶性提供新证据,构建了JT引力随机系综对偶的3D版本,阐明了费曼规则、割补操作的实现及不同几何下的配分函数差异,还将SD方程转化为三维流形组合问题。

摘要:

我们提供了进一步证据,表明文献\cite{belin2023}中研究的matrix-tensor model(矩阵张量模型)与包含拓扑求和的AdS₃引力是对偶的。这给出了JT引力与随机哈密顿量系综之间对偶性的3D版本,其中矩阵和张量提供了受包含自举约束的势支配的随机CFT₂数据。我们展示了该系综的费曼规则如何生成对所有三维流形的求和,以及矩阵积分如何实现割补操作。所得3d引力理论的配分函数在固定的双曲流形上与Virasoro TQFT(VTQFT,维拉索罗拓扑量子场论)一致。但在非双曲几何上,我们的3d引力理论与VTQFT存在差异,导致相关系综的本征值统计特性出现区别。正如文献\cite{belin2023}所阐释的,矩阵-张量积分的Schwinger-Dyson(SD,施温格-戴森)方程对于理解在系综定域到精确CFT的极限下引力如何涌现具有关键作用。我们展示了如何将SD方程转化为关于三维流形的组合问题。

英文摘要:

We give further evidence that the matrix-tensor model studied in \cite{belin2023} is dual to AdS$_{3}$ gravity including the sum over topologies. This provides a 3D version of the duality between JT gravity and an ensemble of random Hamiltonians, in which the matrix and tensor provide random CFT$_2$ data subject to a potential that incorporates the bootstrap constraints. We show how the Feynman rules of the ensemble produce a sum over all three-manifolds and how surgery is implemented by the matrix integral. The partition functions of the resulting 3d gravity theory agree with Virasoro TQFT (VTQFT) on a fixed, hyperbolic manifold. However, on non-hyperbolic geometries, our 3d gravity theory differs from VTQFT, leading to a difference in the eigenvalue statistics of the associated ensemble. As explained in \cite{belin2023}, the Schwinger-Dyson (SD) equations of the matrix-tensor integral play a crucial role in understanding how gravity emerges in the limit that the ensemble localizes to exact CFT's. We show how the SD equations can be translated into a combinatorial problem about three-manifolds.

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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