Note on post-Minkowskian expansion and Bondi coordinates
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arXiv
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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866915492853186560 |
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| author | Mao, Pujian Zeng, Baijun |
| author_facet | Mao, Pujian Zeng, Baijun |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_11953 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Note on post-Minkowskian expansion and Bondi coordinates Mao, Pujian Zeng, Baijun General Relativity and Quantum Cosmology High Energy Physics - Theory 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. |
| title | Note on post-Minkowskian expansion and Bondi coordinates |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2405.11953 |