Kerr-Schild 双重拷贝与复世界线
高能物理 - 理论
2020-03-10 v2
摘要
我们利用经典双重拷贝,识别出麦克斯韦理论源构成爱因斯坦方程 Kerr-Schild 解的单拷贝的必要条件。对于闵可夫斯基背景上的四维 Kerr-Schild 时空,我们将该条件推广为对应单拷贝的参数化。这些单拷贝由复世界线上电荷的 Liénard-Wiechert 场给出。这将已知的平坦四维背景上 Kerr-Schild 双重拷贝黑洞实例统一到单一框架中。此外,我们利用所识别的更一般条件说明了五维黑环为何不承认 Kerr-Schild 坐标。
引用
@article{arxiv.1910.04197,
title = {Kerr-Schild Double Copy and Complex Worldlines},
author = {Ibrahima Bah and Ross Dempsey and Peter Weck},
journal= {arXiv preprint arXiv:1910.04197},
year = {2020}
}
备注
To be published in JHEP. Version updated in include clarifications in wording, new sentences making a few additional remarks, and typo corrections