期刊
PHYSICAL REVIEW D
卷 105, 期 12, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.105.124015
关键词
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资金
- Inje University [20210040]
The conditions for superradiant instability of Kerr-Newman black holes under a charged massive scalar perturbation are found by analyzing the asymptotic scalar potential and far-region wave function. It is also discovered that the conditions for superradiant stability of Kerr-Newman black holes correspond to the absence of a trapping well. The analysis is applied to Kerr black holes to find a condition for superradiant instability.
We find two conditions for superradiant instability of Kerr-Newman black holes under a charged massive scalar perturbation by analyzing the asymptotic scalar potential and far-region wave function. Actually, they correspond to the condition for getting a trapping well. Also, we obtain the conditions for superradiant stability of Kerr-Newman black holes which states that there is no trapping well. The analysis is applied to Kerr black holes to find a condition for superradiant instability.
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