Saved in:
| Main Author: | |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2508.19178 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866914159599288320 |
|---|---|
| author | Malik, Zainab |
| author_facet | Malik, Zainab |
| contents | The paper studies axial gravitational perturbations of the Hayward black hole, a regular geometry that also arises as an effective solution in asymptotically safe gravity. By computing grey-body factors with the 6th-order WKB method and comparing them to predictions based on the quasinormal modes, the correspondence between transmission coefficients and quasinormal spectra is verified. Quantum corrections, parametrized by $γ$, are shown to suppress both the grey-body factors and the absorption cross-section, while the correspondence remains accurate at the percent level for low multipoles and essentially exact for higher ones. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_19178 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Gravitational perturbations of the Hayward spacetime and testing the correspondence between quasinormal modes and grey-body factors Malik, Zainab General Relativity and Quantum Cosmology The paper studies axial gravitational perturbations of the Hayward black hole, a regular geometry that also arises as an effective solution in asymptotically safe gravity. By computing grey-body factors with the 6th-order WKB method and comparing them to predictions based on the quasinormal modes, the correspondence between transmission coefficients and quasinormal spectra is verified. Quantum corrections, parametrized by $γ$, are shown to suppress both the grey-body factors and the absorption cross-section, while the correspondence remains accurate at the percent level for low multipoles and essentially exact for higher ones. |
| title | Gravitational perturbations of the Hayward spacetime and testing the correspondence between quasinormal modes and grey-body factors |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2508.19178 |