Absorption and scattering of massless scalar waves by black holes in quasi-topological gravity.
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| Title: | Absorption and scattering of massless scalar waves by black holes in quasi-topological gravity. |
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| Authors: | Fan, Sihao1 (AUTHOR), Wu, Chen2 (AUTHOR) wuchenoffd@gmail.com, Guo, Wenjun1 (AUTHOR) |
| Source: | European Physical Journal C -- Particles & Fields. Aug2025, Vol. 85 Issue 8, p1-10. 10p. |
| Subjects: | Black holes, Absorption cross sections, Scattering (Physics), Time, Perturbation theory |
| Abstract: | We consider massless scalar field perturbations of regular black holes in quasi-topological gravity. After reviewing various regular black hole solutions, we compute the total absorption cross-section and the partial absorption cross-section for different choices of the parameters using the partial wave method. The results show that the larger the parameter α , introduced in the context of quasi-topological gravity, the smaller the total absorption cross-section. In addition, we find that the influence of the space-time dimension D on the absorption and scattering of massless scalar waves in this set of regular black holes differs from earlier computations. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | We consider massless scalar field perturbations of regular black holes in quasi-topological gravity. After reviewing various regular black hole solutions, we compute the total absorption cross-section and the partial absorption cross-section for different choices of the parameters using the partial wave method. The results show that the larger the parameter α , introduced in the context of quasi-topological gravity, the smaller the total absorption cross-section. In addition, we find that the influence of the space-time dimension D on the absorption and scattering of massless scalar waves in this set of regular black holes differs from earlier computations. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 14346044 |
| DOI: | 10.1140/epjc/s10052-025-14610-2 |
