J 2023

Bardeen spacetime as a quantum corrected Schwarzschild black hole: Quasinormal modes and Hawking radiation

KONOPLYA, Roman, Dmitriy OVCHINNIKOV a Bobomurat AHMEDOV

Základní údaje

Originální název

Bardeen spacetime as a quantum corrected Schwarzschild black hole: Quasinormal modes and Hawking radiation

Autoři

KONOPLYA, Roman (804 Ukrajina, domácí), Dmitriy OVCHINNIKOV (860 Uzbekistán, domácí) a Bobomurat AHMEDOV (860 Uzbekistán)

Vydání

Physical Review D, 2023, 2470-0010

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Kód RIV

RIV/47813059:19630/23:A0000304

Organizační jednotka

Fyzikální ústav v Opavě

UT WoS

001119015500007

Klíčová slova anglicky

Bardeen black hole; Schwarzschild solution;quasinormal modes;Hawking radiation

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 29. 2. 2024 12:04, Mgr. Pavlína Jalůvková

Anotace

V originále

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.