与爱因斯坦张量运动学耦合的均匀标量场的引力坍缩
广义相对论与量子宇宙学
2017-04-19 v4 高能物理 - 理论
摘要
我们研究了一个均匀的与时间有关的标量场的引力坍缩,该标量场除了与曲率耦合外,还与爱因斯坦张量运动学耦合。这种耦合是Horndeski理论的一部分,我们研究了它对坍缩过程的影响。我们发现标量场坍缩所需的时间取决于导数耦合的值,并且奇点被视界保护。将内部解与外部Schwarzschild-AdS度规匹配,我们表明形成了一个黑洞,而在坍缩过程中弱能量条件得到满足。标量场在奇点处取有限值。
引用
@article{arxiv.1512.05934,
title = {Gravitational Collapse of a Homogeneous Scalar Field Coupled Kinematically to Einstein Tensor},
author = {George Koutsoumbas and Konstantinos Ntrekis and Eleftherios Papantonopoulos and Minas Tsoukalas},
journal= {arXiv preprint arXiv:1512.05934},
year = {2017}
}
备注
Title changed. Major revision. A section with a detailed discussion of matching conditions was added. To appear in PRD. arXiv admin note: text overlap with arXiv:gr-qc/0501013 by other authors