Dirac Clouds around Dilatonic Black Holes
Dirac cloud is in absence in general relativity since the superradiance mechanism fails to work for Dirac fields. For the first time, we find a novel mechanism to support Dirac clouds, which is independent on superradiance mechanism. We study quasibound states of Dirac particles around a charged sph...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
American Association for the Advancement of Science (AAAS)
2022-01-01
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| Series: | Research |
| Online Access: | http://dx.doi.org/10.34133/2022/9823274 |
| _version_ | 1827331702416998400 |
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| author | Yang Huang Hongsheng Zhang |
| author_facet | Yang Huang Hongsheng Zhang |
| author_sort | Yang Huang |
| collection | DOAJ |
| description | Dirac cloud is in absence in general relativity since the superradiance mechanism fails to work for Dirac fields. For the first time, we find a novel mechanism to support Dirac clouds, which is independent on superradiance mechanism. We study quasibound states of Dirac particles around a charged spherical black hole in dilatonic gravity. We find that the quasibound states become real bound states when the central black hole becomes extremal. We make an intensive study of the energy spectrum of the stationary clouds for different fine structure constant μM and reveal the existence condition of these clouds. Our result strongly implies that extreme dilatonic black holes behave as elementary particles. |
| first_indexed | 2024-03-07T16:42:05Z |
| format | Article |
| id | doaj.art-350d92d3e9ab478bbd6016ef67df1ecf |
| institution | Directory Open Access Journal |
| issn | 2639-5274 |
| language | English |
| last_indexed | 2024-03-07T16:42:05Z |
| publishDate | 2022-01-01 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | Article |
| series | Research |
| spelling | doaj.art-350d92d3e9ab478bbd6016ef67df1ecf2024-03-03T07:27:10ZengAmerican Association for the Advancement of Science (AAAS)Research2639-52742022-01-01202210.34133/2022/9823274Dirac Clouds around Dilatonic Black HolesYang Huang0Hongsheng Zhang1School of Physics and Technology, University of Jinan, 336, West Road of Nan Xinzhuang, Jinan, 250022 Shandong, ChinaSchool of Physics and Technology, University of Jinan, 336, West Road of Nan Xinzhuang, Jinan, 250022 Shandong, ChinaDirac cloud is in absence in general relativity since the superradiance mechanism fails to work for Dirac fields. For the first time, we find a novel mechanism to support Dirac clouds, which is independent on superradiance mechanism. We study quasibound states of Dirac particles around a charged spherical black hole in dilatonic gravity. We find that the quasibound states become real bound states when the central black hole becomes extremal. We make an intensive study of the energy spectrum of the stationary clouds for different fine structure constant μM and reveal the existence condition of these clouds. Our result strongly implies that extreme dilatonic black holes behave as elementary particles.http://dx.doi.org/10.34133/2022/9823274 |
| spellingShingle | Yang Huang Hongsheng Zhang Dirac Clouds around Dilatonic Black Holes Research |
| title | Dirac Clouds around Dilatonic Black Holes |
| title_full | Dirac Clouds around Dilatonic Black Holes |
| title_fullStr | Dirac Clouds around Dilatonic Black Holes |
| title_full_unstemmed | Dirac Clouds around Dilatonic Black Holes |
| title_short | Dirac Clouds around Dilatonic Black Holes |
| title_sort | dirac clouds around dilatonic black holes |
| url | http://dx.doi.org/10.34133/2022/9823274 |
| work_keys_str_mv | AT yanghuang diraccloudsarounddilatonicblackholes AT hongshengzhang diraccloudsarounddilatonicblackholes |