论文标题
在扩展标量调节理论中,Kerr-Newman Black Hole的自旋诱导标量
Spin-induced scalarization of Kerr-Newman black hole in extended scalar-tensor theory
论文作者
论文摘要
在扩展的标量调节-Gauss-bonnet(ESTGB)田间理论中,无质量标量场和高斯 - 骨网曲率之间的某些非最小耦合,Kerr-Newman(KN)黑洞的速度不稳定。在无限大的耦合极限中计算了kN黑洞自发标量现象的发作的临界自旋和电荷。然后,在有限的大耦合方案中,获得了耦合 - 强度依赖性临界存在线的分析公式。此外,数值方法用于执行阈值曲线,这些曲线是秃头黑色孔和其毛茸茸的对应物之间的边界。有趣的是,我们知道在ESTGB理论中的旋转限制中,kn黑洞可能会标记。
With certain non-minimal coupling between a massless scalar field and the Gauss-Bonnet curvature invariant in the extended scalar-tensor-Gauss-Bonnet (ESTGB) field theory, tachyonic instability of Kerr-Newman (KN) black hole is promoted. Critical spin and charge for the onset of the spontaneous scalarization phenomenon for the KN black hole are calculated in the infinitely large coupling limit. Then analytical formula for the coupling-strength-dependent critical existence line is obtained for the black-hole-scalar-field configuration in a finite large coupling regime. Moreover, numerical methods are used to perform threshold curves which are boundaries between bald KN black holes and their hairy counterparts. Intriguingly, we get to know KN black hole can be scalarized in the vanishing spin limit in ESTGB theory.