论文标题
爱因斯坦 - 马克斯韦 - 斯卡尔理论中的动力自发标量
Dynamical spontaneous scalarization in Einstein-Maxwell-scalar theory
论文作者
论文摘要
我们研究了爱因斯坦 - 马克斯韦尔 - 斯卡尔 - 阶段理论中Reissner-Nordström（RN）黑洞的线性不稳定性和非线性动力学演变。我们专注于耦合函数$ f（ϕ）= e^{ - bϕ^2} $，允许无标量的RN解决方案和标量的黑洞解决方案。我们首先介绍在动态标量期间系统参数的演变。对于发生自发标量化的参数区域，我们发现地平线标量场的演变由早期线性分析的基本不稳定模式主导。在后期，非线性进化可以看作是标量黑洞的扰动。
We study the linear instability and the nonlinear dynamical evolution of the Reissner-Nordström (RN) black hole in the Einstein-Maxwell-scalar theory in asymptotic flat spacetime. We focus on the coupling function $f(ϕ)=e^{-bϕ^2}$ which allows both the scalar-free RN solution and scalarized black hole solution. We first present the evolution of system parameters during dynamic scalarization. For parameter regions where spontaneous scalarization occurs, we find that the evolution of the scalar field at the horizon is dominated by the fundamental unstable mode from linear analysis at early times. At late times, the nonlinear evolution can be viewed as the perturbation of scalarized black holes.
