Existence conditions of nonsingular dyonic black holes in nonlinear electrodynamics
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866911532313477120 |
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| author | Tsuda, Ren Suzuki, Ryotaku Tomizawa, Shinya |
| author_facet | Tsuda, Ren Suzuki, Ryotaku Tomizawa, Shinya |
| contents | General relativity coupled to nonlinear electrodynamics is known to have nonsingular black hole solutions. We investigate the existence conditions for such solutions in two-parameter Lagrangian ${\cal L} \left( {\cal F} , {\cal G} \right)$. In particular, we obtain a criterion on the Lagrangian for the existence of nonsingular black hole with a dyonic charge. In addition, we present a simple example of two-parameter Lagrangian satisfying the criterion, in which the existence of the dyonic solution is actually confirmed. Moreover, apart from the actual existence of dyonic solutions, we consider some examples for the Lagrangian satisfying such a criterion. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_02146 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Existence conditions of nonsingular dyonic black holes in nonlinear electrodynamics Tsuda, Ren Suzuki, Ryotaku Tomizawa, Shinya General Relativity and Quantum Cosmology High Energy Physics - Theory General relativity coupled to nonlinear electrodynamics is known to have nonsingular black hole solutions. We investigate the existence conditions for such solutions in two-parameter Lagrangian ${\cal L} \left( {\cal F} , {\cal G} \right)$. In particular, we obtain a criterion on the Lagrangian for the existence of nonsingular black hole with a dyonic charge. In addition, we present a simple example of two-parameter Lagrangian satisfying the criterion, in which the existence of the dyonic solution is actually confirmed. Moreover, apart from the actual existence of dyonic solutions, we consider some examples for the Lagrangian satisfying such a criterion. |
| title | Existence conditions of nonsingular dyonic black holes in nonlinear electrodynamics |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2308.02146 |