论文标题
新颖的四维高斯黑孔黑洞的准模式和灰体因子在渐近的安静时间时空:标量,电磁和迪拉克扰动
Quasinormal modes and greybody factors of the novel four dimensional Gauss-Bonnet black holes in asymptotically de Sitter space time: Scalar, Electromagnetic and Dirac perturbations
论文作者
论文摘要
我们发现使用三阶WKB近似以及Padé近似值,作为标量,电磁场和DIRAC场扰动的最近提出的新型新型的四维高斯灯泡de Sitter de Sitter的低躺的准模式频率,用于wkb。我们找出高斯 - 骨网耦合$α$和宇宙常数$λ$对QNM频率的真实和虚构部分的影响。我们还研究了上述三种不同类型的扰动的上述背景中的灰体因素和艾科尼尔限制。
We find the low lying quasinormal mode frequencies of the recently proposed novel four dimensional Gauss-Bonnet de Sitter black holes for scalar, electromagnetic and Dirac field perturbations using the third order WKB approximation as well as Padé approximation, as an improvement over WKB. We figure out the effect of the Gauss-Bonnet coupling $α$ and the cosmological constant $Λ$ on the real and imaginary parts of the QNM frequencies. We also study the greybody factors and eikonal limits in the above background for all three different types of perturbations.