Horizon instability of the extremal BTZ black hole
Horizon instability of the extremal BTZ black hole
复制标题
极值 BTZ 黑洞的视界不稳定性
DOI:
10.1007/jhep05(2020)094
复制
发表时间:
2020
影响因子:
5.4
通讯作者:
Zimmerman, Peter
中科院分区:
文献类型:
--
作者:
Gralla, Samuel E.;Ravishankar, Arun;Zimmerman, Peter
We study real-time propagation of a massive scalar field on the extremal BTZ black hole spacetime, focusing on the Aretakis instability of the event horizon. We obtain a simple time-domain expression for the AdS3 retarded Green function with Dirichlet boundary conditions and construct the corresponding time-domain BTZ retarded Green function using the method of images. The field decays at different rates on and off the horizon, indicating that transverse derivatives grow with time on the horizon (Aretakis instability). We solve the null geodesic equation in full generality and show that the instability is associated with a class of null geodesics that orbit near the event horizon arbitrarily many times before falling in. In an appendix we also treat the problem in the frequency domain, finding consistency between the methods.
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影响因子:
2.4
作者:
C. Warnick
通讯作者:
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影响因子:
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