关于后闵可夫斯基展开和邦迪坐标的说明

IF 2.8 3区物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS

Nuclear Physics B Pub Date : 2025-09-09 DOI:10.1016/j.nuclphysb.2025.117111

Pujian Mao, Baijun Zeng

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引用次数: 0

摘要

在本文中，我们将后闵可夫斯基展开中的类点体源系统的线性序度规（G阶）变换为Bondi坐标。我们证明了Bondi的4动量和角动量与类点体系统的4动量和角动量的相对论定义是一致的。零无穷处计算的角动量不存在超平移歧义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Note on post-Minkowskian expansion and Bondi coordinates

In this note, we transform the linear order (at order

G

) metric from a system of pointlike bodies source in the post-Minkowskian expansion to the Bondi coordinates. We show that the Bondi 4-momentum and angular momentum coincide with the relativistic definitions of 4-momentum and angular momentum for the system of pointlike bodies. The angular momentum computed at the null infinity is free of supertranslation ambiguity.

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来源期刊

Nuclear Physics B 物理-物理：粒子与场物理

CiteScore

5.50

自引率

7.10%

发文量

302

审稿时长

1 months

期刊介绍： Nuclear Physics B focuses on the domain of high energy physics, quantum field theory, statistical systems, and mathematical physics, and includes four main sections: high energy physics - phenomenology, high energy physics - theory, high energy physics - experiment, and quantum field theory, statistical systems, and mathematical physics. The emphasis is on original research papers (Frontiers Articles or Full Length Articles), but Review Articles are also welcome.