论文标题
带电的Weyl黑洞的准模式和鹰辐射
Quasinormal modes and Hawking radiation of a charged Weyl black hole
论文作者
论文摘要
我们在带电的Weyl黑洞上调查了标量场系统，该系统由参数$λ$描绘。发现准模式光谱的假想部分始终为负，并且扰动不会随时间增加，这表明该系统在标量场扰动下是稳定的。此外，准模式光谱和鹰辐射具有质量上相似的特征，因为它们都随着$λ$的上升而上升，并且在$λ$足够大的情况下接近常数。特别是，我们要强调的是，随着$λ$的增加，指数衰减显然在响铃尾部出现。它表明特征参数$λ$在铃声上具有明显的烙印，预计将来可以通过未来的观察来检测到。
We investigate the scalar field system over a charged Weyl black hole, depicted by a parameter $λ$. It is found that the imaginary part of the quasinormal mode spectra is always negative and the perturbation does not increase with the time, indicating that the system is stable under scalar field perturbation. Furthermore, the quasinormal mode spectra and Hawking radiation exhibit a qualitatively similar characteristic in that they both rise with rising $λ$ and approach a constant when $λ$ is large enough. Especially, we would like to emphasize that an exponential decay obviously emerges in the phase of the ringing tail as $λ$ increases. It indicates that the characteristic parameter $λ$ has an obvious imprint on the ringing tail, which is expected to be detected by future observations.
