论文标题
由爱因斯坦方程与非线性电动力学一起使用准模式和灰体边界探测带有宇宙常数的Bardeen-Kiselev黑洞
Probing Bardeen-Kiselev black hole with cosmological constant caused by Einstein equations coupled with nonlinear electrodynamics using quasinormal modes and greybody bounds
论文作者
论文摘要
在这项工作中，我们研究了带有宇宙常数的静态和球体对称的Bardeen-Kiselev黑洞，这是Einstein-non-Linearear Maxwell场方程以及典型场的解决方案。我们根据电磁和重力扰动，计算Bardeen-Kiselev黑洞（BH）的准频率。通过改变BH参数，我们讨论了BH准频率的真实部分和虚构部分的行为，并将频率与reissner-nordström-de bh进行比较，并被Quintessence（RN-DSQ）包围。 Interestingly, it shows that the response of Bardeen-Kiselev BH with cosmological constant and RN-dSQ under electromagnetic perturbations are different when the charge parameter $q$, the state parameter $w$ and the normalization factor $c$ are varied, but for the gravitational perturbations, the response of Bardeen-Kiselev BH with cosmological constant and RN-dSQ are different only when the charge parameter $q$ is变化。因此，与重力扰动相比，电磁扰动可用于分别理解弯曲时空中的非线性和线性电磁场。另一个有趣的观察结果是，由于存在精髓，Bardeen-Kiselev BH周围的电磁扰动具有更快的宇宙抑制速度，并且缓慢振荡，对于引力扰动，准模式衰变缓慢而缓慢地振荡。我们还以宇宙常数研究了Bardeen-kiselev BH的反射和传输系数以及吸收横截面，它表明由于存在典型，透射系数将增加。
In this work, we investigate a static and spherically symmetric Bardeen-Kiselev black hole with cosmological constant which is a solution of the Einstein-non-linear Maxwell field equations along with a quintessential field. We compute the quasinormal frequencies for Bardeen-Kiselev black hole(BH) with cosmological constant due to electromagnetic and gravitational perturbations. By varying the BH parameters, we discuss the behaviour of both real and imaginary parts of the BH quasinormal frequencies and compare frequencies with Reissner-Nordström-de Sitter BH surrounded by quintessence (RN-dSQ). Interestingly, it shows that the response of Bardeen-Kiselev BH with cosmological constant and RN-dSQ under electromagnetic perturbations are different when the charge parameter $q$, the state parameter $w$ and the normalization factor $c$ are varied, but for the gravitational perturbations, the response of Bardeen-Kiselev BH with cosmological constant and RN-dSQ are different only when the charge parameter $q$ is varied. Therefore, compared with the gravitational perturbations, the electromagnetic perturbations can be used to understand nonlinear and linear electromagnetic fields in curved spacetime separately. Another interesting observation is that due to the presence of quintessence, the electromagnetic perturbations around the Bardeen-Kiselev BH with cosmological constant damps faster and oscillates slowly, and for the gravitational perturbations, the quasinormal mode decays slowly and oscillates slowly. We also study the reflection and transmission coefficients along with absorption cross section for the Bardeen-Kiselev BH with cosmological constant, it shows that the transmission coefficients will increase due to the presence of quintessence.
