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arXiv 2307.04041gr-qchep-th
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广义相对论的协变广义守恒荷

Covariant generalized conserved charges of General Relativity

Carmen Gómez-Fayrén, Patrick Meessen, Tomás Ortín

AI总结:

本文在闵可夫斯基时空中采用坐标和标架无关的语言构造纯爱因斯坦引力的广义守恒荷,证明其与共形Killing-Yano 2-形式相关,并揭示与闭合形式相关的荷与Kastor和Traschen构造的荷等价。

摘要:

受当前广义对称性研究以及在笛卡尔坐标下闵可夫斯基时空上线性化纯爱因斯坦引力中构造守恒荷的启发,我们从纯经典视角,采用坐标和标架无关的语言研究这些荷的构造,以进一步推广它们。我们证明,在该背景下构造的所有荷均与闵可夫斯基时空的共形Killing-Yano 2-形式相关。此外,我们证明,与闭合共形Killing-Yano 2-形式相关的荷与Kastor和Traschen为其对偶Killing-Yano (d-2)-形式构造的荷相同。我们讨论了以此方式可构造的独立且非平庸的引力荷的数量。

英文摘要:

Motivated by the current research of generalized symmetries and the construction of conserved charges in pure Einstein gravity linearized over Minkowski spacetime in Cartesian coordinates, we investigate, from a purely classical point of view, the construction of these charges in a coordinate- and frame-independent language in order to generalize them further. We show that all the charges constructed in that context are associated to the conformal Killing-Yano 2-forms of Minkowski spacetime. Furthermore, we prove that those associated to closed conformal Killing-Yano 2-forms are identical to the charges constructed by Kastor and Traschen for their dual Killing-Yano (d-2)-forms. We discuss the number of independent and non-trivial gravitational charges that can be constructed in this way.

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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