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arXiv 1508.04776hep-thgr-qchep-ph
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二次引力中非Schwarzschild黑洞的特征及稳定性分析

Features and stability analysis of non-Schwarzschild black hole in quadratic gravity

Yi-Fu Cai, Hezi Zhang, Junyu Liu, Gong Cheng, Min Wang

摘要:

黑洞被发现存在于引力理论中,具有二次曲率项,并且行为不同于史瓦西解。在纯Einstein-Weyl引力作用下,对一类新的黑洞背景中标量场传播的准正规模进行了详尽的分析.结果表明,在非Schwarzschild黑洞中,准正规模场的衰减与Schwarzschild黑洞的衰减相似,但由于背景理论中Weyl张量平方的出现,衰减斜率变得更加平滑.我们还分析了准正规模的频率,以表征新的背洞的性质,因此,如果这些模式可以是引力波的源,在未来的引力波实验的基础理论可能是可检验的。我们简要地评论了这个理论在线性阶的量子(不)稳定性问题。

英文摘要:

Black holes are found to exist in gravitational theories with the presence of quadratic curvature terms and behave differently from the Schwarzschild solution. We present an exhaustive analysis for determining the quasinormal modes of a test scalar field propagating in a new class of black hole backgrounds in the case of pure Einstein-Weyl gravity. Our result shows that the field decay of quasinormal modes in such a non-Schwarzschild black hole behaves similarly to the Schwarzschild one, but the decay slope becomes much smoother due to the appearance of the Weyl tensor square in the background theory. We also analyze the frequencies of the quasinormal modes in order to characterize the properties of new back holes, and thus, if these modes can be the source of gravitational waves, the underlying theories may be testable in future gravitational wave experiments. We briefly comment on the issue of quantum (in)stability in this theory at linear order.

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。

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