Black String Bounce to Traversable Wormhole
In this work, a regular black string solution is presented from the method used by Simpson–Visser to regularize the Schwarzschild solution. As in the Simpson–Visser work, in this new black string solution, it is possible to represent both a regular black hole and a wormhole simply by changing the va...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Symmetry |
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| Online Access: | https://www.mdpi.com/2073-8994/15/1/150 |
| _version_ | 1797436840686387200 |
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| author | Arthur Menezes Lima Geová Maciel de Alencar Filho Job Saraiva Furtado Neto |
| author_facet | Arthur Menezes Lima Geová Maciel de Alencar Filho Job Saraiva Furtado Neto |
| author_sort | Arthur Menezes Lima |
| collection | DOAJ |
| description | In this work, a regular black string solution is presented from the method used by Simpson–Visser to regularize the Schwarzschild solution. As in the Simpson–Visser work, in this new black string solution, it is possible to represent both a regular black hole and a wormhole simply by changing the value of a parameter “<i>a</i>” used in its metric. Tensors and curvature invariants are analyzed to verify the regularity of the solution as well as the energy conditions of the system. It is found that the null energy condition is always violated for the entire space. An additional analysis of the thermodynamic properties of the regular black string is carried out, in which the modifications generated about the original solution of the black string are evaluated, specifically, the Hawking temperature, entropy, its thermal capacity, and the Helmholtz free energy. Finally, we investigate the possible stable or unstable circular orbits for photons and massive particles. The results are compared with those for the non-regular black string, seeking to make a parallel with the Simpson–Visser work. |
| first_indexed | 2024-03-09T11:08:24Z |
| format | Article |
| id | doaj.art-b4ffd52da7ec4ada892212efb3a75e42 |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-03-09T11:08:24Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-b4ffd52da7ec4ada892212efb3a75e422023-12-01T00:52:37ZengMDPI AGSymmetry2073-89942023-01-0115115010.3390/sym15010150Black String Bounce to Traversable WormholeArthur Menezes Lima0Geová Maciel de Alencar Filho1Job Saraiva Furtado Neto2Departamento de Física, Universidade Federal do Ceará, Fortaleza 60455-760, BrazilDepartamento de Física, Universidade Federal do Ceará, Fortaleza 60455-760, BrazilDepartamento de Física, Universidade Federal do Cariri (UFCA), Av. Tenente Raimundo Rocha, Cidade Universitária, Juazeiro do Norte 63048-080, BrazilIn this work, a regular black string solution is presented from the method used by Simpson–Visser to regularize the Schwarzschild solution. As in the Simpson–Visser work, in this new black string solution, it is possible to represent both a regular black hole and a wormhole simply by changing the value of a parameter “<i>a</i>” used in its metric. Tensors and curvature invariants are analyzed to verify the regularity of the solution as well as the energy conditions of the system. It is found that the null energy condition is always violated for the entire space. An additional analysis of the thermodynamic properties of the regular black string is carried out, in which the modifications generated about the original solution of the black string are evaluated, specifically, the Hawking temperature, entropy, its thermal capacity, and the Helmholtz free energy. Finally, we investigate the possible stable or unstable circular orbits for photons and massive particles. The results are compared with those for the non-regular black string, seeking to make a parallel with the Simpson–Visser work.https://www.mdpi.com/2073-8994/15/1/150black-bounceSimpson-Visserblack stringblack holes |
| spellingShingle | Arthur Menezes Lima Geová Maciel de Alencar Filho Job Saraiva Furtado Neto Black String Bounce to Traversable Wormhole Symmetry black-bounce Simpson-Visser black string black holes |
| title | Black String Bounce to Traversable Wormhole |
| title_full | Black String Bounce to Traversable Wormhole |
| title_fullStr | Black String Bounce to Traversable Wormhole |
| title_full_unstemmed | Black String Bounce to Traversable Wormhole |
| title_short | Black String Bounce to Traversable Wormhole |
| title_sort | black string bounce to traversable wormhole |
| topic | black-bounce Simpson-Visser black string black holes |
| url | https://www.mdpi.com/2073-8994/15/1/150 |
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