Stationary gravitational modes on Kerr-anti-de Sitter spacetimes
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866912444653240320 |
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| author | Graf, Olivier |
| author_facet | Graf, Olivier |
| contents | We prove that, for any continuous path of Kerr-adS black hole parameters crossing the Hawking-Reall threshold, for all azimuthal number $|m|$ sufficiently large, there exists black hole parameters on the path such that the Teukolsky equations with conformal boundary conditions admit a non-trivial regular stationary (\emph{i.e.} with frequency $ω=mω_+$) mode solution. When $|m|$ goes to infinity, we show that these black hole parameters accumulate at the Hawking-Reall threshold. The major difficulty is that one cannot construct solutions to the system of Teukolsky equations using variational arguments as it is usually done for the classical wave equation. We introduce a new scheme of proof based on a shooting-type continuity argument and a high-frequency WKB approximation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_18524 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Stationary gravitational modes on Kerr-anti-de Sitter spacetimes Graf, Olivier Analysis of PDEs General Relativity and Quantum Cosmology We prove that, for any continuous path of Kerr-adS black hole parameters crossing the Hawking-Reall threshold, for all azimuthal number $|m|$ sufficiently large, there exists black hole parameters on the path such that the Teukolsky equations with conformal boundary conditions admit a non-trivial regular stationary (\emph{i.e.} with frequency $ω=mω_+$) mode solution. When $|m|$ goes to infinity, we show that these black hole parameters accumulate at the Hawking-Reall threshold. The major difficulty is that one cannot construct solutions to the system of Teukolsky equations using variational arguments as it is usually done for the classical wave equation. We introduce a new scheme of proof based on a shooting-type continuity argument and a high-frequency WKB approximation. |
| title | Stationary gravitational modes on Kerr-anti-de Sitter spacetimes |
| topic | Analysis of PDEs General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2506.18524 |