Overtones' outburst and Hawking evaporation of Kazakov-Solodukhin quantum corrected black hole

Abstract

The Kazakov-Solodukhin black hole metric represents a spherically symmetric deformation of the Schwarzschild solution due to quantum-gravity corrections. Assuming the absence of nonspherical deformations of the metric, this problem was solved nonperturbatively. In this study, we investigate the intensity of Hawking radiation in the background of such quantum-corrected black holes and the behavior of their quasinormal modes (QNM). Our findings indicate that while the geometry and such classical characteristics as the fundamental QNM frequencies or the shadow radius are only slightly altered, the Hawking radiation and the frequencies of QNM overtones of sufficiently small black holes change much more significantly. This Hawking radiation enhancement arises due to much larger grey-body factors, while the Hawking temperature remains unaffected. The effect becomes significant at the latest stage of black hole evaporation.

10 pages, 14 figures. Substantially reworked, the title changed, matches the published version

References in corpus (10)

• Higher order WKB formula for quasinormal modes and grey-body factors: recipes for quick and accurate calculations
• Quasinormal modes, scattering and Hawking radiation in the vicinity of Einstein-dilaton-Gauss-Bonnet black hole
• Quasinormal ringing of regular black holes in asymptotically safe gravity: the importance of overtones
• Phase transition of quantum corrected Schwarzschild black hole
• Correspondence between grey-body factors and quasinormal modes
• Correspondence between grey-body factors and quasinormal frequencies for rotating black holes
• First few overtones probe the event horizon geometry
• Influence of accretion disk on the optical appearance of the Kazakov-Solodukhin black hole
• The sound of the event horizon
• Quasinormal modes of semiclassical electrically charged black holes

Cited by in corpus (5)

• Regular Black Holes from Proper-Time flow in Quantum Gravity and their Quasinormal modes, Shadow and Hawking radiation
• Telling tails and quasi-resonances in the vicinity of Dymnikova regular black hole
• Grey-body factors of higher dimensional regular black holes in quasi-topological theories
• Gravitational quasinormal modes of Dymnikova black holes
• Quasinormal modes of the Kazakov--Solodukhin quantum-corrected black hole: a spectral analysis