KONOPLYA, Roman, Dmitriy OVCHINNIKOV and Bobomurat AHMEDOV. Bardeen spacetime as a quantum corrected Schwarzschild black hole: Quasinormal modes and Hawking radiation. Physical Review D. 2023, vol. 108, No 10, p. "104054-1"-"104054-13", 13 pp. ISSN 2470-0010. Available from: https://dx.doi.org/10.1103/PhysRevD.108.104054.
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Basic information
Original name Bardeen spacetime as a quantum corrected Schwarzschild black hole: Quasinormal modes and Hawking radiation
Authors KONOPLYA, Roman (804 Ukraine, belonging to the institution), Dmitriy OVCHINNIKOV (860 Uzbekistan, belonging to the institution) and Bobomurat AHMEDOV (860 Uzbekistan).
Edition Physical Review D, 2023, 2470-0010.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/47813059:19630/23:A0000304
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1103/PhysRevD.108.104054
UT WoS 001119015500007
Keywords in English Bardeen black hole; Schwarzschild solution;quasinormal modes;Hawking radiation
Tags RIV24, SGS-30-2023, UF
Tags International impact, Reviewed
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 29/2/2024 12:04.
Abstract
The Bardeen black hole holds historical significance as the first model of a regular black hole. Recently, there have been proposed interpretations of the Bardeen spacetime as quantum corrections to the Schwarzschild solution. Our study focuses on investigating the quasinormal modes and Hawking radiation of the Bardeen black hole. We have observed that previous studies on the quasinormal modes for the Bardeen black hole suffer from inaccuracies that cannot be neglected. Therefore, we propose accurate calculations of the quasinormal modes for scalar, electromagnetic, and neutrino fields in the Bardeen spacetime. Additionally, we have computed the gray-body factors and analyzed the emission rates of Hawking radiation. Even when the quantum correction is small and the fundamental mode only slightly differs from its Schwarzschild value, the first several overtones deviate at an increasingly stronger rate. This deviation leads to the appearance of overtones with very small real oscillation frequencies. This outburst of overtones is closely linked to the fact that the quantum-corrected black hole differs from its classical limit primarily near the event horizon. Moreover, the intensity of the Hawking radiation is significantly suppressed (up to 3 orders of magnitude) by the quantum correction.
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