Real Scalar Field Scattering Around the Extreme Reissner-Nordström Black Hole in de Sitter Spacetime

被引：0
作者：
Guanghai Guo
Pengfei Yan
Suojie Wang
机构：
[1] Qingdao University of Science and Technology,School of Mathematics and Physics
来源：
International Journal of Theoretical Physics | 2015年 / 54卷
关键词：
Scalar field; RNdS black hole; Polynomial approximation; Transmission coefficient;
D O I：
暂无
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学科分类号：
摘要：
The real scalar field scattering of the extreme Reissner-Nordström black hole in de Sitter spacetime is investigated numerically via the polynomial approximation. It is found that the scalar field behaves like harmonic waves under the tortoise coordinate, while piles up near the outer event horizon and the cosmological horizon. The abnormity in previous work is eliminated by appropriate application of the boundary conditions in numerical calculations. Substituting the continuous effective potential with a stair potential of n steps, we evaluate the transmission and reflection coefficients of the scalar field in high and low energy regimes, where an asymptotical formula is derived.
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页码：409 / 420
页数：11
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