Dynamical spontaneous scalarization in Einstein-Maxwell-scalar theory  

作　　者：Wei Xiong Peng Liu Chao Niu Cheng-Yong Zhang Bin Wang 熊炜;刘鹏;牛超;张承勇;王斌(Department of Physics and Siyuan Laboratory,Jinan University,Guangzhou 510632,China;Center for Gravitation and Cosmology,College of Physical Science and Technology,Yangzhou University,Yangzhou 225009,China;School of Aeronautics and Astronautics,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]Department of Physics and Siyuan Laboratory,Jinan University,Guangzhou 510632,China [2]Center for Gravitation and Cosmology,College of Physical Science and Technology,Yangzhou University,Yangzhou 225009,China [3]School of Aeronautics and Astronautics,Shanghai Jiao Tong University,Shanghai 200240,China

出　　处：《Chinese Physics C》2022年第9期268-275,共8页中国物理C（英文版）

基　　金：the National Key R&D Program of China(2020YFC2201400);the Natural Science Foundation of China(11805083,11905083,12005077);Guangdong Basic and Applied Basic Research Foundation(2021A1515012374)。

摘　　要：We study the linear instability and nonlinear dynamical evolution of the Reissner-Nordstrom(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 facilitates both scalar-free RN and scalarized black hole solutions.We first present the evolution of system parameters during dynamic scalarization.For parameter regions in which spontaneous scalarization occurs,we observe 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 considered to be the perturbation of scalarized black holes.

关 键 词：black hole quasinormal modes SCALARIZATION 

分 类 号：P145.8[天文地球—天体物理] O412.1[天文地球—天文学]