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arXiv 2103.13422hep-thgr-qc
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从黑洞到CGHS引力中的婴儿宇宙

From black holes to baby universes in CGHS gravity

Victor Godet, Charles Marteau

摘要:

我们研究$\widehat{\text{CGHS}}$引力,无物质Callan-Giddings-Harvey-Strominger模型的一个变体。我们表明,它描述了一个普遍的部门的非极值黑洞在更高的维度在视界附近的扰动。在许多方面,这个理论可以被看作是Jackiw-Teitelboim引力的平坦空间模拟。欧几里德路径积分的结果意味着$\widehat{\text{CGHS}}$是我们详细描述的高斯系综的对偶。这个理论的简单性使我们能够计算精确的量,如淬火自由能,并提供了一个有用的操场研究婴儿宇宙,平均和因式分解。我们也给出了证据的存在性的非微扰完成的矩阵模型。最后讨论了平坦虫洞解。

英文摘要:

We study $\widehat{\text{CGHS}}$ gravity, a variant of the matterless Callan-Giddings-Harvey-Strominger model. We show that it describes a universal sector of the near horizon perturbations of non-extremal black holes in higher dimensions. In many respects this theory can be viewed as a flat space analog of Jackiw-Teitelboim gravity. The result for the Euclidean path integral implies that $\widehat{\text{CGHS}}$ is dual to a Gaussian ensemble that we describe in detail. The simplicity of this theory allows us to compute exact quantities such as the quenched free energy and provides a useful playground to study baby universes, averages and factorization. We also give evidence for the existence of a non-perturbative completion in terms of a matrix model. Finally, flat wormhole solutions are discussed.

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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