The superradiant instability spectrum of the hydrodynamic vortex model
Fuente:
arXiv
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866909059533242368 |
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| author | Hod, Shahar |
| author_facet | Hod, Shahar |
| contents | We study analytically the superradiant instability properties of the hydrodynamic vortex model, an asymptotically flat acoustic geometry which, like the spinning Kerr black-hole spacetime, possesses an effective ergoregion. In particular, we derive a compact analytical formula for the complex resonant frequencies that characterize the long-wavelength dynamics of sound modes in this physically interesting acoustic spacetime. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_13354 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | The superradiant instability spectrum of the hydrodynamic vortex model Hod, Shahar General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena High Energy Physics - Theory We study analytically the superradiant instability properties of the hydrodynamic vortex model, an asymptotically flat acoustic geometry which, like the spinning Kerr black-hole spacetime, possesses an effective ergoregion. In particular, we derive a compact analytical formula for the complex resonant frequencies that characterize the long-wavelength dynamics of sound modes in this physically interesting acoustic spacetime. |
| title | The superradiant instability spectrum of the hydrodynamic vortex model |
| topic | General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena High Energy Physics - Theory |
| url | https://arxiv.org/abs/2312.13354 |