Renormalized charged scalar current on a Reissner-Nordstrom black hole in the presence of charge superradiance
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909606818611200 |
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| author | Montagnon, George Winstanley, Elizabeth |
| author_facet | Montagnon, George Winstanley, Elizabeth |
| contents | We compute the renormalized charge current for a massless, minimally coupled, charged quantum scalar field on a charged Reissner-Nordstrom black hole space-time, using the method of pragmatic mode-sum renormalization. Since the field exhibits superradiance, we consider the past Unruh, Boulware and Candelas-Chrzanowski-Howard states, and study how the renormalized current in these states depends on the charges of the black hole and scalar field. We also study the backreaction of the charge current on the electromagnetic field. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_10780 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Renormalized charged scalar current on a Reissner-Nordstrom black hole in the presence of charge superradiance Montagnon, George Winstanley, Elizabeth High Energy Physics - Theory General Relativity and Quantum Cosmology We compute the renormalized charge current for a massless, minimally coupled, charged quantum scalar field on a charged Reissner-Nordstrom black hole space-time, using the method of pragmatic mode-sum renormalization. Since the field exhibits superradiance, we consider the past Unruh, Boulware and Candelas-Chrzanowski-Howard states, and study how the renormalized current in these states depends on the charges of the black hole and scalar field. We also study the backreaction of the charge current on the electromagnetic field. |
| title | Renormalized charged scalar current on a Reissner-Nordstrom black hole in the presence of charge superradiance |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2501.10780 |