arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.01388gr-qc
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荷电双光子黑洞对无质量标量场的散射

Scattering of massless scalar field by charged dilatonic black holes

Yang Huang, Hongsheng Zhang

摘要:

波在黑洞中的传播是一个具有重要理论意义和观测意义的问题,特别是在引力波的发现和黑洞的确认之后。在全波理论的框架下研究了荷电重子黑洞对无质量标量场的散射。利用分波方法得到了黑洞的标量场的散射截面,并研究了黑洞电荷对标量场散射截面的影响。此外,我们还研究了电子黑洞散射截面的Regge极点近似。我们发现,为了获得相同精度的结果,我们需要更多的Regge极点的黑洞电荷的增加。我们比较了全波理论的结果和经典的测地线散射和半经典的荣耀近似的结果,并证明了我们的方法的改进和权力。

英文摘要:

Wave propagations in the presence of black holes is a significant problem both in theoretical and observational aspects, especially after the discovery of gravitational wave and confirmation of black holes. We study the scattering of massless scalar field by a charged dilatonic black hole in frame of full wave theory. We apply partial wave method to obtain the scattering cross sections of the scalar field, and investigate how the black hole charge affects the scalar scattering cross sections. Furthermore, we investigate the Regge pole approach of the scattering cross section of the dilatonic black hole. We find that in order to obtain results at the same precision, we need more Regge poles as the black hole charge increases. We compare the results in the full wave theory and results in the classical geodesic scattering and the semi-classical glory approximations, and demonstrate the improvements and power of our approach.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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