来自梅尔文-克尔-纽曼时空的见解
广义相对论与量子宇宙学
2015-12-09 v3 高能物理 - 理论
摘要
我们利用梅尔文-克尔-纽曼(MKN)时空族考察黑洞视界物理的几个方面。粗略地说,这些是沉浸于扭曲背景磁场中的黑洞,且与标准克尔-纽曼(KN)族不同,它们不是渐近平坦的。作为相对于KN可高度扭曲的具有视界的精确解,它们为关于约束黑洞视界的思想和定理提供了良好的试验台。我们明确表明,具有固定磁场参数的MKN视界可由其面积、电荷和角动量唯一确定,且电荷和角动量受视界面积的约束方式与KN相同。正如预期,极端MKN视界与极端KN视界几何同构,且近极端视界的几何扭曲受其接近极端程度的约束。在另一极端,梅尔文-史瓦西(MS)解可被无限扭曲,然而对于中间情况,任何非零电荷或角动量都将扭曲限制为有限。这些性质与已知定理一致,但可见其以有趣且非平凡的方式被满足。
引用
@article{arxiv.1502.07388,
title = {Insights from Melvin-Kerr-Newman spacetimes},
author = {Ivan Booth and Matthew Hunt and Alberto Palomo-Lozano and Hari K. Kunduri},
journal= {arXiv preprint arXiv:1502.07388},
year = {2015}
}
备注
Version 3 (24 pages, 4 figures): Significant amounts of background material as well as discussion of energy removed. Readers interested in that material should refer to Version 2. Three references added. Version 2 (35 pages, 8 figures): one reference added with some discussion, math fonts fixed to ensure all symbols display properly, several typos corrected