Surface gravity analysis in Gauss-Bonnet and Barrow black holes
We have different definitions of the surface gravity (SG) of a horizon since we can say we have distinct classifications of horizons. The SG has an underlying role in the laws of black hole (BH) thermodynamics, being constant in the event horizon. The SG also acts in the emission of Hawking radiatio...
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Elsevier
2025-02-01
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| Series: | Physics Letters B |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269324007949 |
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| author | Everton M.C. Abreu |
| author_facet | Everton M.C. Abreu |
| author_sort | Everton M.C. Abreu |
| collection | DOAJ |
| description | We have different definitions of the surface gravity (SG) of a horizon since we can say we have distinct classifications of horizons. The SG has an underlying role in the laws of black hole (BH) thermodynamics, being constant in the event horizon. The SG also acts in the emission of Hawking radiation being connected to its temperature. Concerning this last issue, the quantum features that permeate Hawking radiation provide us a direct indication that a BH has its temperature directly connected to its area and that its entropy is proportional to the horizon area. In this work we analyzed some aspects of event horizons. Analyzing how the SG can be classically defined for stationary BHs together with the radial pressure computation. So, the SG, through the laws of BH mechanics is connected to the real thermodynamical temperature of a thermal spectrum. We discussed these subjects in two different BHs scenarios, the five dimensional Gauss-Bonnet one and the recently developed Barrow entropy construction. We discussed how the quantum fluctuations affect these both quantities. |
| format | Article |
| id | doaj-art-54a1f281a49e4326a343a7b081f9ace5 |
| institution | Kabale University |
| issn | 0370-2693 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-54a1f281a49e4326a343a7b081f9ace52025-02-10T04:33:50ZengElsevierPhysics Letters B0370-26932025-02-01861139236Surface gravity analysis in Gauss-Bonnet and Barrow black holesEverton M.C. Abreu0Departamento de Física, Instituto de Ciências Exatas, Universidade Federal Rural do Rio de Janeiro, RJ, Brazil; Applied Physics Graduation Program, Physics Institute, Universidade Federal do Rio de Janeiro, RJ, Brazil; Observatório do Valongo, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Correspondence to: Applied Physics Graduation Program, Physics Institute, Universidade Federal do Rio de Janeiro, RJ, Brazil.We have different definitions of the surface gravity (SG) of a horizon since we can say we have distinct classifications of horizons. The SG has an underlying role in the laws of black hole (BH) thermodynamics, being constant in the event horizon. The SG also acts in the emission of Hawking radiation being connected to its temperature. Concerning this last issue, the quantum features that permeate Hawking radiation provide us a direct indication that a BH has its temperature directly connected to its area and that its entropy is proportional to the horizon area. In this work we analyzed some aspects of event horizons. Analyzing how the SG can be classically defined for stationary BHs together with the radial pressure computation. So, the SG, through the laws of BH mechanics is connected to the real thermodynamical temperature of a thermal spectrum. We discussed these subjects in two different BHs scenarios, the five dimensional Gauss-Bonnet one and the recently developed Barrow entropy construction. We discussed how the quantum fluctuations affect these both quantities.http://www.sciencedirect.com/science/article/pii/S0370269324007949Black holes event horizonSurface gravityBarrow black hole entropy |
| spellingShingle | Everton M.C. Abreu Surface gravity analysis in Gauss-Bonnet and Barrow black holes Physics Letters B Black holes event horizon Surface gravity Barrow black hole entropy |
| title | Surface gravity analysis in Gauss-Bonnet and Barrow black holes |
| title_full | Surface gravity analysis in Gauss-Bonnet and Barrow black holes |
| title_fullStr | Surface gravity analysis in Gauss-Bonnet and Barrow black holes |
| title_full_unstemmed | Surface gravity analysis in Gauss-Bonnet and Barrow black holes |
| title_short | Surface gravity analysis in Gauss-Bonnet and Barrow black holes |
| title_sort | surface gravity analysis in gauss bonnet and barrow black holes |
| topic | Black holes event horizon Surface gravity Barrow black hole entropy |
| url | http://www.sciencedirect.com/science/article/pii/S0370269324007949 |
| work_keys_str_mv | AT evertonmcabreu surfacegravityanalysisingaussbonnetandbarrowblackholes |