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arXiv 1409.7440gr-qc
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Reissner-Nordström黑洞周围带电场的拟正规模

Quasinormal modes of charged fields around a Reissner-Nordström black hole

Maurício Richartz, Davi Giugno

摘要:

非极值Reissner-Nordström黑洞周围带电标量场的拟正规谱,特别是在大电磁相互作用极限下的拟正规谱,直到最近才得到全面的研究.在这项工作中,我们扩展到狄拉克场的分析使用连分式方法和比较的结果与标量的情况。特别是,我们研究的基本quasinormal模式的黑洞的电荷和电磁相互作用参数的函数的行为。本文导出了大电磁相互作用极限下的准正规频率的解析公式。当接近黑洞电荷的极值极限时,我们证明了,与中性场的情况不同,带电场的拟正规频率的虚部接近于零。

英文摘要:

The quasinormal spectrum of a charged scalar field around a non-extremal Reissner-Nordström black hole, specially in the limit of large electromagnetic interaction, has been comprehensively studied only very recently. In this work, we extend the analysis to Dirac fields using the continued fraction method and compare the results with the scalar case. In particular, we study the behaviour of the fundamental quasinormal mode as a function of the black hole's charge and of the electromagnetic interaction parameter. We derive an analytical formula for the quasinormal frequencies in the limit of large electromagnetic interaction. As the extremal limit of black hole charge is approached, we show that, unlike the case of neutral fields, the imaginary part of the quasinormal frequencies approach zero for charged fields.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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