论文标题
爱因斯坦 - 马克斯韦 - 斯卡尔理论中克尔·纽曼黑洞的自旋诱导标量
Spin-induced scalarization of Kerr-Newman black holes in Einstein-Maxwell-scalar theory
论文作者
论文摘要
在本文中，我们考虑了爱因斯坦 - 马克斯韦尔 - 斯卡尔（EMS）理论中克尔·纽曼（KN）黑洞的速度不稳定，并与麦克斯韦的非微分负相关偶联，然后获得绑定的$（\ frac {a} a} {a} {r _+} {r _+geq0.4142 $ a的$（\ frac {a} {a} $α\ rightArrow- \ infty $通过使用分析方法。此外，我们通过在EMS理论中以数值实现倍bloid的叶面方法来执行$（2+1）$ - 在kN黑洞背景上线性化标量扰动的尺寸时间演变。它恢复了参数空间某些某些区域的kn黑洞的\ textit {自发标量}现象。我们进一步绘制了相应的阈值曲线$α（a）$，描述了秃头kn黑洞和EMS理论中标量旋转的黑洞之间的边界。
In this paper, we consider the tachyonic instability of Kerr-Newman (KN) black holes in the Einstein-Maxwell-scalar (EMS) theory with nonminimal negative scalar coupling to Maxwell term, and then obtain a bound $(\frac{a}{r_+}\geq0.4142)$ for spin parameter $a$ of KN black hole in the limit of coupling constant $α\rightarrow-\infty$ by using analytical method. In addition, we perform a $(2+1)$-dimensional time evolution of linearized scalar field perturbation on the KN black hole background by implementing the hyperboloidal foliation method numerically in the EMS theory. It recovers the \textit{spontaneous scalarization} phenomenon for KN black hole in some certain regions of the parameter spaces. We further plot corresponding threshold curves $α(a)$ which describe a boundary between bald KN black holes and scalarized spinning black holes in the EMS theory.
