Greybody factor and quasinormal modes of scalar and Dirac field perturbation in Schwarzschild-de Sitter-like black hole in Bumblebee gravity model
Abstract In this paper, we study the scalar and Dirac fields perturbation of Schwarzschild-de Sitter-like black hole in bumblebee gravity model. The effective potentials, greybody factors and quasinormal modes of the black hole are investigated by using the Klein–Gordon equation and Dirac equation....
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-12-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-13627-3 |
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| author | Yenshembam Priyobarta Singh Telem Ibungochouba Singh |
| author_facet | Yenshembam Priyobarta Singh Telem Ibungochouba Singh |
| author_sort | Yenshembam Priyobarta Singh |
| collection | DOAJ |
| description | Abstract In this paper, we study the scalar and Dirac fields perturbation of Schwarzschild-de Sitter-like black hole in bumblebee gravity model. The effective potentials, greybody factors and quasinormal modes of the black hole are investigated by using the Klein–Gordon equation and Dirac equation. To compute the greybody factors for scalar and Dirac fields, we use the general method of rigorous bound. We also investigate the quasinormal mode using the third order WKB approximation method and Pöschl–Teller fitting method. The impact of Lorentz invariance violation parameter L and cosmological constant $$\varLambda $$ Λ to the effective potential, greybody factors and quasinormal modes are analyzed for different modes. Increasing the parameters $$\varLambda $$ Λ and L lower the effective potentials and consequently increases the rigorous bound on the greybody factors. Our findings show that the oscillation frequency and the damping rate decrease with increasing L. We analyze the Hawking temperature, power spectrum and sparsity of Hawking radiation. Both the peak of power spectrum and total power emitted decrease with increasing L. The effect of L on the shadow radius is also discussed. |
| format | Article |
| id | doaj-art-c6ff06b7d9b24d6e90f86d4c652e5d1f |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-c6ff06b7d9b24d6e90f86d4c652e5d1f2025-02-02T12:39:16ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-12-01841212510.1140/epjc/s10052-024-13627-3Greybody factor and quasinormal modes of scalar and Dirac field perturbation in Schwarzschild-de Sitter-like black hole in Bumblebee gravity modelYenshembam Priyobarta Singh0Telem Ibungochouba Singh1Department of Mathematics, Manipur UniversityDepartment of Mathematics, Manipur UniversityAbstract In this paper, we study the scalar and Dirac fields perturbation of Schwarzschild-de Sitter-like black hole in bumblebee gravity model. The effective potentials, greybody factors and quasinormal modes of the black hole are investigated by using the Klein–Gordon equation and Dirac equation. To compute the greybody factors for scalar and Dirac fields, we use the general method of rigorous bound. We also investigate the quasinormal mode using the third order WKB approximation method and Pöschl–Teller fitting method. The impact of Lorentz invariance violation parameter L and cosmological constant $$\varLambda $$ Λ to the effective potential, greybody factors and quasinormal modes are analyzed for different modes. Increasing the parameters $$\varLambda $$ Λ and L lower the effective potentials and consequently increases the rigorous bound on the greybody factors. Our findings show that the oscillation frequency and the damping rate decrease with increasing L. We analyze the Hawking temperature, power spectrum and sparsity of Hawking radiation. Both the peak of power spectrum and total power emitted decrease with increasing L. The effect of L on the shadow radius is also discussed.https://doi.org/10.1140/epjc/s10052-024-13627-3 |
| spellingShingle | Yenshembam Priyobarta Singh Telem Ibungochouba Singh Greybody factor and quasinormal modes of scalar and Dirac field perturbation in Schwarzschild-de Sitter-like black hole in Bumblebee gravity model European Physical Journal C: Particles and Fields |
| title | Greybody factor and quasinormal modes of scalar and Dirac field perturbation in Schwarzschild-de Sitter-like black hole in Bumblebee gravity model |
| title_full | Greybody factor and quasinormal modes of scalar and Dirac field perturbation in Schwarzschild-de Sitter-like black hole in Bumblebee gravity model |
| title_fullStr | Greybody factor and quasinormal modes of scalar and Dirac field perturbation in Schwarzschild-de Sitter-like black hole in Bumblebee gravity model |
| title_full_unstemmed | Greybody factor and quasinormal modes of scalar and Dirac field perturbation in Schwarzschild-de Sitter-like black hole in Bumblebee gravity model |
| title_short | Greybody factor and quasinormal modes of scalar and Dirac field perturbation in Schwarzschild-de Sitter-like black hole in Bumblebee gravity model |
| title_sort | greybody factor and quasinormal modes of scalar and dirac field perturbation in schwarzschild de sitter like black hole in bumblebee gravity model |
| url | https://doi.org/10.1140/epjc/s10052-024-13627-3 |
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