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Onset of rotating scalarized black holes in Einstein-Chern-Simons-Scalar theory
Physics Letters B ( IF 4.4 ) Pub Date : 2021-03-01 , DOI: 10.1016/j.physletb.2021.136081
Yun Soo Myung , De-Cheng Zou

We perform the stability analysis of the Kerr black hole in the Einstein-Chern-Simons-Scalar theory with quadratic scalar coupling. For positive coupling parameter ($\alpha>0$), we introduce the (2+1)-dimensional hyperboloidal foliation method to show that the Kerr black hole is unstable against scalar-mode perturbation. In case of $\alpha<0$, it is shown that the Kerr black hole is unstable without any $\alpha$-independent bound on the rotation parameter $a$ when using the the hyperboloidal foliation method. The disappearance of the $a$-bound is confirmed analytically by implementing the (1+1)-dimensional linearized scalar equation.

中文翻译:

爱因斯坦-陈-西蒙-标量理论中旋转标量化黑洞的开始

我们在具有二次标量耦合的爱因斯坦-陈-西蒙-标量理论中对克尔黑洞进行稳定性分析。对于正耦合参数($\alpha>0$),我们引入了(2+1)维双曲面叶理方法来证明克尔黑洞对标量模式扰动是不稳定的。在 $\alpha<0$ 的情况下,表明当使用双曲面叶理方法时,Kerr 黑洞在旋转参数 $a$ 上没有任何 $\alpha$ 独立约束是不稳定的。通过实施 (1+1) 维线性化标量方程,分析确认了 $a$ 边界的消失。
更新日期:2021-03-01
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