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arXiv 2201.05543gr-qc
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引力波存储与波动方程

Gravitational wave memory and the wave equation

David Garfinkle

摘要:

引力波存储器及其电磁模拟被证明是波动方程的直接结果。从麦克斯韦方程组可以导出电场的波动方程,而从比安奇恒等式可以导出线性化引力中黎曼张量的波动方程。在这两种情况下的记忆是来自这些波动方程的源的结构。

英文摘要:

Gravitational wave memory and its electromagnetic analog are shown to be straightforward consequences of the wave equation. From Maxwell's equations one can derive a wave equation for the electric field, while from the Bianchi identity one can derive a wave equation for the Riemann tensor in linearized gravity. Memory in both cases is derived from the structure of the source of those wave equations.

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