Restoring strong cosmic censorship in Reissner–Nordström–de Sitter black holes via non-minimal electromagnetic-scalar couplings
Abstract We investigate whether the Strong Cosmic Censorship (SCC) Conjecture can be reinstated at the classical level in Reissner–Nordström–de Sitter (RNdS) black holes by introducing non-minimal couplings between the electromagnetic and scalar fields in Einstein–Maxwell-scalar (EMS) theory. By con...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2023-12-01
|
| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-023-12336-7 |
| _version_ | 1797233315091054592 |
|---|---|
| author | Jie Jiang Jia Tan |
| author_facet | Jie Jiang Jia Tan |
| author_sort | Jie Jiang |
| collection | DOAJ |
| description | Abstract We investigate whether the Strong Cosmic Censorship (SCC) Conjecture can be reinstated at the classical level in Reissner–Nordström–de Sitter (RNdS) black holes by introducing non-minimal couplings between the electromagnetic and scalar fields in Einstein–Maxwell-scalar (EMS) theory. By conducting numerical calculations, we find that the SCC can be restored within a specific range of the coupling constant. Notably, for a given value of the cosmological constant, there exists a critical coupling constant above which the EMS theory satisfies the SCC. These findings suggest that the non-minimal couplings between the electromagnetic and scalar fields may play a crucial role in the restoration of the SCC in RNdS spacetime. Additionally, under negative coupling constants, the low-lying modes of nearly extremal black holes exhibit $$\beta > 1,$$ β > 1 , enabling $$C^2$$ C 2 extensions beyond the Cauchy horizon and intensifying the violation of the SCC. |
| first_indexed | 2024-03-08T22:35:11Z |
| format | Article |
| id | doaj.art-4510f2dd91a44f37b17e1481da8cc3f0 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-04-24T16:14:13Z |
| publishDate | 2023-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-4510f2dd91a44f37b17e1481da8cc3f02024-03-31T11:31:02ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-12-0183121910.1140/epjc/s10052-023-12336-7Restoring strong cosmic censorship in Reissner–Nordström–de Sitter black holes via non-minimal electromagnetic-scalar couplingsJie Jiang0Jia Tan1College of Education for the Future, Beijing Normal UniversityJiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and TechnologyAbstract We investigate whether the Strong Cosmic Censorship (SCC) Conjecture can be reinstated at the classical level in Reissner–Nordström–de Sitter (RNdS) black holes by introducing non-minimal couplings between the electromagnetic and scalar fields in Einstein–Maxwell-scalar (EMS) theory. By conducting numerical calculations, we find that the SCC can be restored within a specific range of the coupling constant. Notably, for a given value of the cosmological constant, there exists a critical coupling constant above which the EMS theory satisfies the SCC. These findings suggest that the non-minimal couplings between the electromagnetic and scalar fields may play a crucial role in the restoration of the SCC in RNdS spacetime. Additionally, under negative coupling constants, the low-lying modes of nearly extremal black holes exhibit $$\beta > 1,$$ β > 1 , enabling $$C^2$$ C 2 extensions beyond the Cauchy horizon and intensifying the violation of the SCC.https://doi.org/10.1140/epjc/s10052-023-12336-7 |
| spellingShingle | Jie Jiang Jia Tan Restoring strong cosmic censorship in Reissner–Nordström–de Sitter black holes via non-minimal electromagnetic-scalar couplings European Physical Journal C: Particles and Fields |
| title | Restoring strong cosmic censorship in Reissner–Nordström–de Sitter black holes via non-minimal electromagnetic-scalar couplings |
| title_full | Restoring strong cosmic censorship in Reissner–Nordström–de Sitter black holes via non-minimal electromagnetic-scalar couplings |
| title_fullStr | Restoring strong cosmic censorship in Reissner–Nordström–de Sitter black holes via non-minimal electromagnetic-scalar couplings |
| title_full_unstemmed | Restoring strong cosmic censorship in Reissner–Nordström–de Sitter black holes via non-minimal electromagnetic-scalar couplings |
| title_short | Restoring strong cosmic censorship in Reissner–Nordström–de Sitter black holes via non-minimal electromagnetic-scalar couplings |
| title_sort | restoring strong cosmic censorship in reissner nordstrom de sitter black holes via non minimal electromagnetic scalar couplings |
| url | https://doi.org/10.1140/epjc/s10052-023-12336-7 |
| work_keys_str_mv | AT jiejiang restoringstrongcosmiccensorshipinreissnernordstromdesitterblackholesvianonminimalelectromagneticscalarcouplings AT jiatan restoringstrongcosmiccensorshipinreissnernordstromdesitterblackholesvianonminimalelectromagneticscalarcouplings |