巴丁（反）德西特黑洞的准正态模式和等谱性* * 基金项目：湖南省自然科学基金（2022JJ40262），国家自然科学基金（12375046，12205254）。

IF 3.6 2区物理与天体物理 Q1 PHYSICS, NUCLEAR

中国物理C Pub Date : 2024-03-01 DOI:10.1088/1674-1137/ad1ed8

Ying Zhao, Wentao Liu, Chao Zhang, Xiongjun Fang, Jiliang Jing

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引用次数: 0

摘要

黑洞（BHs）表现出坐标奇点，但在整个时空中缺乏本质奇点，被称为规则黑洞（RBHs）。RBHs 的最初表述由 Bardeen 提出，他考虑了与非线性电磁场耦合的爱因斯坦方程。在本研究中，我们研究了巴丁（反）德西特黑洞的引力扰动，包括轴向和极区。我们推导了轴向和极向扰的源项主方程，随后通过数值方法计算了准正常模式（QNMs）。对于巴丁-德-西特黑洞，我们采用了六阶 WKB 方法。数值结果表明，在这种情况下等谱性被打破了。相反，对于巴丁反德西特黑洞，我们使用 HH 方法计算了 QNM 频率。

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Quasinormal modes and isospectrality of Bardeen (Anti-) de Sitter black holes* * Supported by the the Natural Science Foundation of Hunan Province, China (2022JJ40262), and the National Natural Science Foundation of China (12375046, 12205254)

Black holes (BHs) exhibiting coordinate singularities but lacking essential singularities throughout the spacetime are referred to as regular black holes (RBHs). The initial formulation of RBHs was presented by Bardeen, who considered the Einstein equation coupled with a nonlinear electromagnetic field. In this study, we investigate the gravitational perturbations, including the axial and polar sectors, of the Bardeen (Anti-) de Sitter black holes. We derive the master equations with source terms for both axial and polar perturbations and subsequently compute the quasinormal modes (QNMs) through numerical methods. For the Bardeen de Sitter black hole, we employ the 6th-order WKB approach. The numerical results reveal that the isospectrality is broken in this case. Conversely, the QNM frequencies are calculated using the HH method for the Bardeen Anti-de Sitter black hole.

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来源期刊

中国物理C 物理-物理：核物理

CiteScore

6.50

自引率

8.30%

发文量

8976

审稿时长

1.3 months

期刊介绍： Chinese Physics C covers the latest developments and achievements in the theory, experiment and applications of: Particle physics; Nuclear physics; Particle and nuclear astrophysics; Cosmology; Accelerator physics. The journal publishes original research papers, letters and reviews. The Letters section covers short reports on the latest important scientific results, published as quickly as possible. Such breakthrough research articles are a high priority for publication. The Editorial Board is composed of about fifty distinguished physicists, who are responsible for the review of submitted papers and who ensure the scientific quality of the journal. The journal has been awarded the Chinese Academy of Sciences ‘Excellent Journal’ award multiple times, and is recognized as one of China''s top one hundred key scientific periodicals by the General Administration of News and Publications.