arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.06195gr-qchep-th
收藏

经典引力自能的双复制

Classical Gravitational Self-Energy from Double Copy

Gabriel Luz Almeida, Stefano Foffa, Riccardo Sturani

摘要:

将经典的双拷贝方法应用于多极引力场耦合复合系统的自能计算,通过将颜色推广到已知的运动学替换规则,得到了引力场耦合$G_N$中次领先阶的结果.当应用到多极描述的两体系统,在这项工作中研究的自能图对应于尾部过程,其物理解释是辐射被发射的非相对论源,散射的曲率产生的二元系统,然后重新吸收相同的源。这些过程有助于保守的两体动力学和目前的工作是一个决定性的一步,系统地使用双拷贝内的多极后闵可夫斯基膨胀。

英文摘要:

We apply the classical double copy to the calculation of self-energy of composite systems with multipolar coupling to gravitational field, obtaining next-to-leading order results in the gravitational coupling $G_N$ by generalizing color to kinematics replacement rules known in literature. When applied to the multipolar description of the two-body system, the self-energy diagrams studied in this work correspond to tail processes, whose physical interpretation is of radiation being emitted by the non-relativistic source, scattered by the curvature generated by the binary system and then re-absorbed by the same source. These processes contribute to the conservative two-body dynamics and the present work represents a decisive step towards the systematic use of double copy within the multipolar post-Minkowskian expansion.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑