论文标题
旋转常规黑洞周围的标量扰动：超级不稳定性和准模式
Scalar Perturbation Around Rotating Regular Black Hole: Superradiance Instability and Quasinormal Modes
论文作者
论文摘要
黑洞为研究粒子物理和天体物理学提供了自然实验室。当黑洞被物质场包围时，将会有很多现象可以带来观察后果，我们可以从中了解物质领域以及黑洞的时空。在这项工作中，我们研究了一个新提出的旋转常规黑洞附近的大规模标量场，灵感来自量子重力。我们将特别研究这种非单明的spactime将如何影响归档标量的超级不稳定性和准模式。我们通过使用匹配 - 肌化方法得出了超级条件和扩增因子，并通过持续分数方法计算了准模式。在Kerr限制中，结果与先前的研究达成了极好的协议。我们还演示了准模式如何随着黑洞旋转的函数而变化，分别由参数$ k $和标量场质量质量描述，而其他参数则为特定值。
Black holes provide a natural laboratory to study particle physics and astrophysics. When black holes are surrounded by matter fields, there will be plenty of phenomena which can have observational consequences, from which we can learn about the matter fields as well as black hole spacetime. In this work, we investigate the massive scalar field in the vicinity of a newly proposed rotating regular black hole inspired by quantum gravity. We will especially investigate how this non-singular spactime will affect the superradiance instability and quasinormal modes of the scalar filed. We derive the superradiant conditions and the amplification factor by using the Matching-asymptotic Method, and the quasinormal modes are computed through Continued Fraction Method. In the Kerr limit, the results are in excellent agreements with previous research. We also demonstrate how the quasinormal modes will change as a function of black hole spin, regularity described by a parameter $k$ and scalar field mass respectively, with other parameters taking specific values.
