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arXiv 2109.00503gr-qchep-thmath-phmath.MP
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Darboux协方差:扰动Schwarzschild黑洞的一种隐藏对称性

Darboux Covariance: A Hidden Symmetry of Perturbed Schwarzschild Black Holes

Michele Lenzi, Carlos F. Sopuerta

摘要:

从史瓦西黑洞扰动的无限个可能的主方程组出发,主函数在度规扰动及其一阶导数中呈线性,我们证明了所有这些方程都通过达布变换连接。这些变换保持了像准正规模频率和Korteweg-de Vries守恒量的无限层次这样的物理量,揭示了描述史瓦西黑洞扰动的一个新的隐藏对称性:达布协方差。

英文摘要:

Starting from the infinite set of possible master equations for the perturbations of Schwarzschild black holes, with master functions linear in the metric perturbations and their first-order derivatives, we show that of all them are connected via Darboux transformations. These transformations preserve physical quantities like the quasinormal mode frequencies and the infinite hierarchy of Korteweg-de Vries conserved quantities, revealing a new hidden symmetry in the description of the perturbations of Schwarzschild black holes: Darboux covariance.

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