论文标题

自偶联黑洞的吸收和散射

Absorption and scattering of a self-dual black hole

论文作者

Anacleto, M. A., Brito, F. A., Campos, J. A. V., Passos, E.

论文摘要

在本文中,我们旨在研究通过部分波方法的自偶联黑洞引起的无质量标量波散射的过程。我们在低能限制下通过分析计算相移,并显示在小角度极限处的差分横截面的主要项是通过与聚合物功能相关的参数和自我双重黑孔的最小面积来修改的。我们还发现,吸收横截面的结果由低频限制的自dual黑洞的事件地平线给出。我们还表明,与Schwarzschild黑洞的情况相反,在零质量极限下,自偶联黑洞的差分散射/吸收横截面为非零。此外,我们通过数值求解任意频率的径向方程来验证这些结果。

In this paper we aim to investigate the process of massless scalar wave scattering due to a self-dual black hole through the partial wave method. We calculate the phase shift analytically at the low energy limit and we show that the dominant term of the differential cross section at the small angle limit is modified by the presence of parameters related to the polymeric function and minimum area of a self-dual black hole. We also find that the result for the absorption cross section is given by the event horizon area of the self-dual black hole at the low frequency limit. We also show that, contrarily to the case of a Schwarzschild black hole, the differential scattering/absorption cross section of a self-dual black hole is nonzero at the zero mass limit. In addition, we verify these results by numerically solving the radial equation for arbitrary frequencies.

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