Quantum corrected black holes: Quasinormal modes, scattering, shadows
Quantum corrected black holes: Quasinormal modes, scattering, shadows
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DOI：
10.1016/j.physletb.2020.135363
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发表时间：
2019-12
影响因子：
4.4
通讯作者：
R. Konoplya;R. Konoplya
中科院分区：
文献类型：
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作者：
R. Konoplya;R. Konoplya
由引力量子修正引起的史瓦西解的球对称变形被称为Kazakov-Solodukhin黑洞度规。忽略背景的非球面变形，采用非摄动方法求解。本文分析了该几何结构的基本特征，如：各种自旋场的准正态模态和灰体因子，以及黑洞投射的阴影。WKB方法和时域积分方法在拟正态模态计算中具有很好的一致性。推导出了在正交状态下拟正态模态的解析公式。当量子变形开启时，阴影半径减小。
The spherically symmetric deformation of the Schwarzschild solution owing to the quantum corrections to gravity is known as Kazakov-Solodukhin black-hole metric. Neglecting non-spherical deformations of the background the problem was solved non-perturbatively. Here we analyze the basic characteristics of this geometry, such as: quasinormal modes and grey-body factors of fields of various spin and shadow cast by this black hole. The WKB approach and time-domain integration method, which we used for calculation of quasinormal modes, are in a good concordance. The analytical formula for quasinormal modes is deduced in the eikonal regime. The radius of shadow is decreasing when the quantum deformation is turned on.