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arXiv 2409.05964gr-qchep-th
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高维旋转黑洞时空中的爱对称性

Love symmetry in higher-dimensional rotating black hole spacetimes

University of Vienna(维也纳大学);Arizona State University(亚利桑那州立大学);Charles University(查理大学);University of North Florida(北佛罗里达大学)

Finnian Gray, Cynthia Keeler, David Kubiznak, Victoria Martin

AI总结:

本文提出了一种在高维旋转黑洞时空中共构建爱对称性生成器的方法,并展示了其在不同坐标系下的分离性质。

摘要:

我们开发了一种方法,用于在一般维度的旋转黑洞时空中共构建一个1参数家族的全局定义的爱对称性生成器。关键的成分是关注物理外视界附近,将黑洞时空中的Klein-Gordon算子的径向导数和外视界极子部分与SL(2,R) Casimir算子匹配。在重新审视4D Kerr和5D Myers-Perry情况后,该过程在广义Lense-Thirring时空上得到演示,这些时空描述了任意维度中各种缓慢旋转黑洞度规。此类时空已知允许扩展的Killing张量和Killing向量对称性,并且如本文所示,在Myers-Perry-like坐标中允许质量标量波方程分离。有趣的是,分离也发生在与自由坠落观察者相关的穿透视界Painlevé-Gullstrand坐标中,该观察者在整个过程中都记录到平坦空间。

英文摘要:

We develop a method for constructing a 1-parameter family of globally-defined Love symmetry generators in rotating black hole spacetimes of general dimension. The key ingredient is to focus on the vicinity of the (physical) outer horizon, matching only the radial derivative and the outer horizon pole pieces of the Klein--Gordon operator in the black hole spacetime to the $SL(2,\mathbb{R})$ Casimir operator. After revisiting the 4D Kerr and 5D Myers--Perry cases, the procedure is illustrated on generalized Lense--Thirring spacetimes which describe a wide variety of slowly rotating black hole metrics in any number of dimensions. Such spacetimes are known to admit an extended tower of Killing tensor and Killing vector symmetries and, as demonstrated in this paper, allow for separability of the massive scalar wave equation in Myers--Perry-like coordinates. Interestingly, separability also occurs in the horizon-penetrating Painlev{é}--Gullstrand coordinates associated with the freely infalling observer who registers flat space around her all the way to singularity.

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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