Charged superradiant instability in a spherical regular black hole
Abstract We examine the stability of a spherically symmetric regular black hole when subjected to perturbations from a charged scalar field. This particular black hole is constructed by deforming the Minkowski spacetime. It has been observed that the charged superradiant instability arises only with...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-12-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-13714-5 |
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| author | Yizhi Zhan Hengyu Xu Shao-Jun Zhang |
| author_facet | Yizhi Zhan Hengyu Xu Shao-Jun Zhang |
| author_sort | Yizhi Zhan |
| collection | DOAJ |
| description | Abstract We examine the stability of a spherically symmetric regular black hole when subjected to perturbations from a charged scalar field. This particular black hole is constructed by deforming the Minkowski spacetime. It has been observed that the charged superradiant instability arises only within a specific range of the deformation parameter, potentially resulting in an instability growth rate with a maximum magnitude of approximately $$\text {Im} (M \omega ) \sim 10^{-3}$$ Im ( M ω ) ∼ 10 - 3 . This growth rate significantly exceeds the instability identified in ABG black holes discussed in prior research, suggesting a notable timescale for detecting this phenomenon in astrophysical scenarios. Additionally, we conduct a thorough investigation into how the three parameters of the model influence the onset and intensity of the instability. Our analysis offers further insights into the possible emergence of this instability in spherical regular black holes and its association with the nonlinear effects of the electromagnetic field. |
| format | Article |
| id | doaj-art-ea52b1bd25d244b7b326f1ee8f1eeb2c |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-ea52b1bd25d244b7b326f1ee8f1eeb2c2025-02-02T12:39:29ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-12-01841211110.1140/epjc/s10052-024-13714-5Charged superradiant instability in a spherical regular black holeYizhi Zhan0Hengyu Xu1Shao-Jun Zhang2Institute for Theoretical Physics and Cosmology, Zhejiang University of TechnologyInstitute for Theoretical Physics and Cosmology, Zhejiang University of TechnologyInstitute for Theoretical Physics and Cosmology, Zhejiang University of TechnologyAbstract We examine the stability of a spherically symmetric regular black hole when subjected to perturbations from a charged scalar field. This particular black hole is constructed by deforming the Minkowski spacetime. It has been observed that the charged superradiant instability arises only within a specific range of the deformation parameter, potentially resulting in an instability growth rate with a maximum magnitude of approximately $$\text {Im} (M \omega ) \sim 10^{-3}$$ Im ( M ω ) ∼ 10 - 3 . This growth rate significantly exceeds the instability identified in ABG black holes discussed in prior research, suggesting a notable timescale for detecting this phenomenon in astrophysical scenarios. Additionally, we conduct a thorough investigation into how the three parameters of the model influence the onset and intensity of the instability. Our analysis offers further insights into the possible emergence of this instability in spherical regular black holes and its association with the nonlinear effects of the electromagnetic field.https://doi.org/10.1140/epjc/s10052-024-13714-5 |
| spellingShingle | Yizhi Zhan Hengyu Xu Shao-Jun Zhang Charged superradiant instability in a spherical regular black hole European Physical Journal C: Particles and Fields |
| title | Charged superradiant instability in a spherical regular black hole |
| title_full | Charged superradiant instability in a spherical regular black hole |
| title_fullStr | Charged superradiant instability in a spherical regular black hole |
| title_full_unstemmed | Charged superradiant instability in a spherical regular black hole |
| title_short | Charged superradiant instability in a spherical regular black hole |
| title_sort | charged superradiant instability in a spherical regular black hole |
| url | https://doi.org/10.1140/epjc/s10052-024-13714-5 |
| work_keys_str_mv | AT yizhizhan chargedsuperradiantinstabilityinasphericalregularblackhole AT hengyuxu chargedsuperradiantinstabilityinasphericalregularblackhole AT shaojunzhang chargedsuperradiantinstabilityinasphericalregularblackhole |