On the angular momentum of compact binary coalescence

被引：0
|
作者：
Xiaokai He [1 ]
Xiaoning Wu [2 ]
Naqing Xie [3 ]
机构：
[1] School of Mathematics and Statistics, Hunan First Normal University
[2] Institute of Mathematics, Academy of Mathematics and Systems Science and Hua Loo-Keng Key Laboratory, Chinese Academy of Sciences
[3] School of Mathematical Sciences, Fudan University
来源：
Communications in Theoretical Physics | 2023年 / 75卷 / 04期
基金：
中国国家自然科学基金;
关键词：
D O I：
暂无
中图分类号：
O412.1 [相对论];
学科分类号：
070201 ;
摘要：
The supertranslation ambiguity issue of angular momentum is a long-standing problem in general relativity. Recently, there appeared the first definition of angular momentum at null infinity that is supertranslation invariant. However, in the compact binary coalescence community, supertranslation ambiguity is often ignored. This paper demonstrates that we have the happy circumstance that the newly defined angular momentum coincides with the classical definition at the quadrupole level.
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页码：82 / 90
页数：9
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