Challenging event horizons with spin (3/2) fields
Abstract We attempt to destroy the event horizons of Kerr black holes by perturbing them with massless spin (3/2) fields. We carry out a detailed analysis by incorporating the explicit form of the absorption probabilities and backreaction effects due to the self energy of the test fields. For extrem...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-07-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-023-11764-9 |
| _version_ | 1797689138967740416 |
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| author | Koray Düztaş |
| author_facet | Koray Düztaş |
| author_sort | Koray Düztaş |
| collection | DOAJ |
| description | Abstract We attempt to destroy the event horizons of Kerr black holes by perturbing them with massless spin (3/2) fields. We carry out a detailed analysis by incorporating the explicit form of the absorption probabilities and backreaction effects due to the self energy of the test fields. For extremal and nearly extremal black holes, backreaction effects dominate for perturbations with large magnitudes. However, small perturbations can destroy the event horizons of extremal black holes and drive nearly extremal black holes closer to extremality. Eventually, nearly extremal black holes reach a certain stage where they can be continuously driven to extremality and beyond. Both the cosmic censorship conjecture and the third law of black hole dynamics can be violated by spin (3/2) fields. This directly follows from the fact that fermionic fields do not satisfy the null energy condition. Therefore this result does not contradict with the fact that cosmic censorship and the laws of black hole mechanics remain valid for perturbations satisfying the null energy condition. |
| first_indexed | 2024-03-12T01:41:39Z |
| format | Article |
| id | doaj.art-9de464e6104e4c209340c6e4b1d7f311 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-03-12T01:41:39Z |
| publishDate | 2023-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-9de464e6104e4c209340c6e4b1d7f3112023-09-10T11:23:15ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-07-018371810.1140/epjc/s10052-023-11764-9Challenging event horizons with spin (3/2) fieldsKoray Düztaş0Faculty of Engineering and Natural Sciences, İstanbul Okan UniversityAbstract We attempt to destroy the event horizons of Kerr black holes by perturbing them with massless spin (3/2) fields. We carry out a detailed analysis by incorporating the explicit form of the absorption probabilities and backreaction effects due to the self energy of the test fields. For extremal and nearly extremal black holes, backreaction effects dominate for perturbations with large magnitudes. However, small perturbations can destroy the event horizons of extremal black holes and drive nearly extremal black holes closer to extremality. Eventually, nearly extremal black holes reach a certain stage where they can be continuously driven to extremality and beyond. Both the cosmic censorship conjecture and the third law of black hole dynamics can be violated by spin (3/2) fields. This directly follows from the fact that fermionic fields do not satisfy the null energy condition. Therefore this result does not contradict with the fact that cosmic censorship and the laws of black hole mechanics remain valid for perturbations satisfying the null energy condition.https://doi.org/10.1140/epjc/s10052-023-11764-9 |
| spellingShingle | Koray Düztaş Challenging event horizons with spin (3/2) fields European Physical Journal C: Particles and Fields |
| title | Challenging event horizons with spin (3/2) fields |
| title_full | Challenging event horizons with spin (3/2) fields |
| title_fullStr | Challenging event horizons with spin (3/2) fields |
| title_full_unstemmed | Challenging event horizons with spin (3/2) fields |
| title_short | Challenging event horizons with spin (3/2) fields |
| title_sort | challenging event horizons with spin 3 2 fields |
| url | https://doi.org/10.1140/epjc/s10052-023-11764-9 |
| work_keys_str_mv | AT korayduztas challengingeventhorizonswithspin32fields |