Charge-dependent scalarization of Einstein- Euler-Heisenberg black holes
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866909046162849792 |
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| author | Zhang, Lina Myung, Yun Soo Zou, De-Cheng Zhang, Chao-Ming |
| author_facet | Zhang, Lina Myung, Yun Soo Zou, De-Cheng Zhang, Chao-Ming |
| contents | Charge-dependent scalarization of the Einstein-Euler-Heisenberg (EEH) black hole is carried out in the EEH-scalar theory by introducing an exponential scalar coupling with $α$ coupling constant to the Maxwell and nonlinear electrodynamic terms. The bald black hole (EEHBH) is described by mass $M$ and arbitrary magnetic charge $q$ and has a single horizon when choosing the action parameter $μ=0.3$. The spontaneous scalarization ($α^+$) of this black hole is available for charge $0<q< q_c=1.115$ and positive $α$, whereas its new scalarization ($α^-$) occurs for $q> q_c$ and negative $α$. The former case of $q=0.5$ implies infinite branches of scalarized EEHBHs but its fundamental branch ($n=0$) is stable against radial perturbations, while the latter cases of $q=2,20$ show two stable single branches of scalarized EEHBHs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_15566 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Charge-dependent scalarization of Einstein- Euler-Heisenberg black holes Zhang, Lina Myung, Yun Soo Zou, De-Cheng Zhang, Chao-Ming General Relativity and Quantum Cosmology High Energy Physics - Theory Charge-dependent scalarization of the Einstein-Euler-Heisenberg (EEH) black hole is carried out in the EEH-scalar theory by introducing an exponential scalar coupling with $α$ coupling constant to the Maxwell and nonlinear electrodynamic terms. The bald black hole (EEHBH) is described by mass $M$ and arbitrary magnetic charge $q$ and has a single horizon when choosing the action parameter $μ=0.3$. The spontaneous scalarization ($α^+$) of this black hole is available for charge $0<q< q_c=1.115$ and positive $α$, whereas its new scalarization ($α^-$) occurs for $q> q_c$ and negative $α$. The former case of $q=0.5$ implies infinite branches of scalarized EEHBHs but its fundamental branch ($n=0$) is stable against radial perturbations, while the latter cases of $q=2,20$ show two stable single branches of scalarized EEHBHs. |
| title | Charge-dependent scalarization of Einstein- Euler-Heisenberg black holes |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2605.15566 |