数值相对论中的引力记忆和 BMS 框架固定评述

IF 3.6 3区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

Classical and Quantum Gravity Pub Date : 2024-10-21 DOI:10.1088/1361-6382/ad83c2

Keefe Mitman, Michael Boyle, Leo C Stein, Nils Deppe, Lawrence E Kidder, Jordan Moxon, Harald P Pfeiffer, Mark A Scheel, Saul A Teukolsky, William Throwe and Nils L Vu

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引用次数: 0

摘要

引力记忆效应和在未来空无穷大时表现出的 BMS 自由最近已在数值相对论模拟中得到解决和利用。由此，引力波模型和我们对广义相对论基本性质的理解得到了极大的改善。在本文中，我们回顾了记忆效应和 BMS 对称性背后的历史和直觉，它们在引力波中的表现形式，以及控制数值相对论模拟中无限多的 BMS 自由度如何能极大地改进引力波探测器所使用的波形模型。我们重申，有了记忆效应和 BMS 对称性，这些下一代数值波形不仅可以用来观测前所未见的物理现象，还可以用来检验引力波，了解我们宇宙的新天体物理信息。

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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A review of gravitational memory and BMS frame fixing in numerical relativity

Gravitational memory effects and the BMS freedoms exhibited at future null infinity have recently been resolved and utilized in numerical relativity simulations. With this, gravitational wave models and our understanding of the fundamental nature of general relativity have been vastly improved. In this paper, we review the history and intuition behind memory effects and BMS symmetries, how they manifest in gravitational waves, and how controlling the infinite number of BMS freedoms of numerical relativity simulations can crucially improve the waveform models that are used by gravitational wave detectors. We reiterate the fact that, with memory effects and BMS symmetries, not only can these next-generation numerical waveforms be used to observe never-before-seen physics, but they can also be used to test GR and learn new astrophysical information about our Universe.

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来源期刊

Classical and Quantum Gravity 物理-天文与天体物理

CiteScore

7.00

自引率

8.60%

发文量

301

审稿时长

2-4 weeks

期刊介绍： Classical and Quantum Gravity is an established journal for physicists, mathematicians and cosmologists in the fields of gravitation and the theory of spacetime. The journal is now the acknowledged world leader in classical relativity and all areas of quantum gravity.