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arXiv 2602.16773gr-qchep-th
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四维纯引力中的规则黑洞

Regular black holes from pure gravity in four dimensions

Abdus Salam Centre for Theoretical Physics, Imperial College London(阿卜杜斯·萨拉姆理论物理中心,伦敦帝国理工学院);Instituto de Astrofísica de Andalucía (IAA-CSIC)(安达卢西亚天体物理研究所(IAA-CSIC))

Johanna Borissova, Raúl Carballo-Rubio

AI总结:

通过构建四维非多项式引力理论,推导出静态球对称规则黑洞作为真空解,并明确给出对应Hayward规则黑洞时空的作用量。

摘要:

我们推导出静态球对称规则黑洞作为四维纯引力理论的真空解。为此,我们从二维Horndeski作用的子类出发,构建了四维非多项式引力。通过构造,这些理论在球对称背景上具有二阶运动方程。我们表明,这些非多项式引力中的一个子集,称为非多项式准拓扑引力,允许单函数静态球对称解,其中度规函数由代数方程确定。这些理论的解包括Hayward规则黑洞时空,并明确给出了相应的引力作用量。

英文摘要:

We derive static spherically symmetric regular black holes as vacuum solutions to purely gravitational theories in four dimensions. To that end, we construct four-dimensional non-polynomial gravities starting from subclasses of two-dimensional Horndeski actions. By construction, these theories possess second-order equations of motion on spherically symmetric backgrounds. We show that a subset of these non-polynomial gravities, referred to as non-polynomial quasi-topological gravities, admit single-function static spherically symmetric solutions whereby the metric function is determined by an algebraic equation. Solutions to these theories include the Hayward regular black-hole spacetime, for which a corresponding gravitational action is stated explicitly.

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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