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Comment on 'Memory effect for impulsive gravitational waves'
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DOI：10.1088/1361-6382/ab127d.png)
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摘要
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Recently the 'memory effect' has been studied in plane gravitational waves and, in particular, in impulsive plane waves. Based on an analysis of the particle motion (mainly in Baldwin-Jeffery-Rosen coordinates) a 'velocity memory effect' is claimed to be found in Zhang et al (2018 Class. Quantum Grav. 35 065011). Here we point out a conceptual mistake in this account and employ earlier works to explain how to correctly derive the particle motion and how to correctly deal with the notorious distributional Brinkmann form of the metric and its relation to the continuous Rosen form.
Keyword:
impulsive gravitational waves
memory effect
particle motion
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期刊
IF:
3.7
论文数:
1.3W
被引数:
3.0W
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