Kiselev-反德西特黑洞背景中的标量粒子
Scalar particle in the Kiselev-anti-de-Sitter black hole background
- Instituto de Ciências Exatas, Universidade Federal Fluminense（乌拉圭联邦大学自然科学学院）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
本研究通过幂级数方法求解Klein-Gordon方程，分析了Kiselev-反德西特黑洞背景中标量粒子的准束缚态与能量准谱，发现宇宙学常数和各向异性流体参数影响能量及辐射，并验证了与已知黑洞解的一致性。
AI中文摘要：
在这项工作中，我们研究了由宇宙学常数和各向异性流体包围的黑洞时空中标量粒子的动力学。通过幂级数方法求解Klein-Gordon方程，我们获得了准束缚态和相应的能量准谱。我们发现，根据模型参数的不同，准谱可以同时具有实部和虚部，其中实部仅在特定条件下存在。数值分析表明，减小宇宙学常数和各向异性流体参数会增强能量并增加事件视界外部区域的辐射，而这些周围场的更强贡献则倾向于抑制发射的辐射。我们还分析了几个渐近极限，并恢复了Kiselev、de Sitter和Schwarzschild黑洞的相应结果，为我们的解提供了一致性检验。这些结果凸显了周围物质分布和宇宙学贡献在修改黑洞时空中标量场的动力学和辐射方面的作用。
英文摘要：
In this work, we investigate the dynamics of a scalar particle in a black-hole spacetime surrounded by a cosmological constant and an anisotropic fluid. By solving the Klein--Gordon equation through a power series approach, we obtain quasibound states and the corresponding energy quasispectrum. We find that the quasispectrum can exhibit both real and imaginary components, depending on the model parameters, with the real component existing only under specific conditions. The numerical analysis shows that decreasing the cosmological constant and the anisotropic fluid parameter enhances the energy and increases the radiation in the region outside the event horizon, whereas stronger contributions from these surrounding fields tend to suppress the emitted radiation. We also analyze several asymptotic limits and recover the corresponding results for the Kiselev, de Sitter, and Schwarzschild black holes, providing consistency checks for our solutions. These results highlight the role of the surrounding matter distribution and cosmological contribution in modifying the dynamics and radiation of scalar fields in black hole spacetimes.
