标题： 自旋诱导的Kerr-Newman黑洞在爱因斯坦-麦克斯韦标量理论中的标量化 显示英文标题

标题： Spin-induced scalarization of Kerr-Newman black holes in Einstein-Maxwell-scalar theory

摘要： 在本文中，我们考虑了在爱因斯坦-麦克斯韦-标量（EMS）理论中具有非最小负标量耦合到麦克斯韦项的Kerr-Newman（KN）黑洞的快子不稳定性，然后通过分析方法在耦合常数$\alpha\rightarrow-\infty$的极限下获得了 KN 黑洞自旋参数$a$的界限$(\frac{a}{r_+}\geq0.4142)$。此外，我们通过在 EMS 理论中数值实施双曲面叶状结构方法，对 KN 黑洞背景上的线性标量场扰动进行了$(2+1)$维时间演化。它在参数空间的某些特定区域恢复了 KN 黑洞的\textit{自发标量化}现象。我们进一步绘制了相应的阈值曲线$\alpha(a)$，这些曲线描述了 EMS 理论中无毛 KN 黑洞和标量化旋转黑洞之间的边界。 显示英文摘要

摘要： 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 $\alpha\rightarrow-\infty$ 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 $\alpha(a)$ which describe a boundary between bald KN black holes and scalarized spinning black holes in the EMS theory.