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题名: Time domain analysis of superradiant instability for the charged stringy black hole-mirror system
作者: Li, R;  Tian, Y;  Zhang, HB;  Zhao, JK
刊名: PHYSICS LETTERS B
出版日期: 2015
卷号: 750, 期号:0, 页码:520-527
关键词: Charged black holes in string theory ;  Superradiant instability ;  Time domain analysis
学科分类: Astronomy & Astrophysics ;  Physics
DOI: http://dx.doi.org/10.1016/j.physletb.2015.09.073
通讯作者: Zhang, HB (reprint author), Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.
文章类型: Article
英文摘要: It has been proved that the charged stringy black holes are stable under the perturbations of massive charged scalar fields. However, superradiant instability can be generated by adding the mirror-like boundary condition to the composed system of charged stringy black hole and scalar field. The unstable boxed quasinormal modes have been calculated by using both analytical and numerical methods. In this paper, we further provide a time domain analysis by performing a long time evolution of charged scalar field configuration in the background of the charged stringy black hole with the mirror-like boundary condition imposed. We have used the ingoing Eddington-Finkelstein coordinates to derive the evolution equation, and adopted Pseudo-spectral method and the forth-order Runge-Kutta method to evolve the scalar field with the initial Gaussian wave packet. It is shown by our numerical scheme that Fourier transforming the evolution data coincides well with the unstable modes computed from frequency domain analysis. The existence of the rapid growth mode makes the charged stringy black hole a good test ground to study the nonlinear development of superradiant instability. (C) 2015 The Authors. Published by Elsevier B.V.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Nuclear ;  Physics, Particles & Fields
关键词[WOS]: MASSIVE SCALAR PERTURBATIONS ;  FIELD ;  AMPLIFICATION ;  EXTRACTION ;  STABILITY ;  SPACETIME ;  ENERGY ;  BOMB
收录类别: SCI
项目资助者: NSFC [11205048, 11475179] ;  Foundation for Young Key Teacher of Henan Normal University ;  Belgian Federal Science Policy Office through the Interuniversity Attraction Pole [P7/37] ;  FWO-Vlaanderen [G020714N] ;  Vrije Universiteit Brussel through the Strategic Research Program "High-Energy Physics" ;  [12G3515N]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20791
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Li, R,Tian, Y,Zhang, HB,et al. Time domain analysis of superradiant instability for the charged stringy black hole-mirror system[J]. PHYSICS LETTERS B,2015,750(0):520-527.
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