五维Chern-Simons黑洞吸收截面的讨论
Comments on absorption cross section for Chern-Simons black holes in five dimensions
摘要：
本文研究了黑洞质量对在5维拓扑Chern-Simons黑洞中传播的大质量标量场在低频极限下的吸收截面的影响。我们考虑黑洞解$(α=\pm 1)$的两个分支，发现当黑洞质量增加时，在零频极限处，分支$α=-1$的吸收截面减小，而另一分支$α=1$的吸收截面则相反，当黑洞质量增加时，吸收截面增加.我们还发现，在一定的频率值以上，质量黑洞不影响吸收截面。
英文摘要：
In this paper we study the effects of black hole mass on the absorption cross section for a massive scalar field propagating in a 5-dimensional topological Chern-Simons black hole at the low-frequency limit. We consider the two branches of black hole solutions $(α=\pm 1)$ and we show that, if the mass of black hole increase the absorption cross section decreases at the zero-frequency limit for the branch $α=-1$ and for the other branch, $α=1$, the behavior is opposite, if the black hole mass increase the absorption cross section increases. Also we find that beyond a certain frequency value, the mass black hole does not affect the absorption cross section.
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