论文标题
通过带电的延伸黑色孔的无质量标量场的散射
Scattering of massless scalar field by charged dilatonic black holes
论文作者
论文摘要
黑洞存在下的波传播是理论和观察方面的重要问题，尤其是在发现引力波和黑洞确认后。我们通过全波理论框架中带电的膨胀黑洞研究无质量标量场的散射。我们应用部分波方法来获得标量场的散射横截面，并研究黑洞电荷如何影响标量散射截面。此外，我们研究了Dilatonic黑洞的散射横截面的Regge Pole方法。我们发现，为了以相同的精度获得结果，随着黑洞电荷的增加，我们需要更多的Regge极。我们比较了整个波理论中的结果，并导致经典的地球散射和半古典荣耀近似，并证明了我们方法的改进和力量。
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.
