In this study, we investigate electromagnetic and Dirac test field perturbations of a charged regular black hole arising from quantum gravity effects, commonly referred to as the Frolov black hole, a regular (nonsingular) black hole solution. We derive the master wave equations for massless electromagnetic and Dirac perturbations and solve them using the standard Wentzel-Kramers-Brillouin (WKB) method along with Pade Averaging. From these solutions, we extract the dominant and overtone quasinormal mode (QNM) frequencies along with the associated grey-body factors, highlighting the deviations introduced by quantum gravity corrections compared to the classical case of Reissner–Nordstrom black hole. Furthermore, we analyze the Unruh-Verlinde temperature of this spacetime, providing quantitative estimates of how quantumgravity effects influence both quasinormal ringing and particle emission in nonsingular black hole models.
- Open Access
- Article
Quasinormal Ringing and Unruh-Verlinde Temperature of the Frolov Black Hole
- Akshat Pathrikar
Author Information
Received: 10 Oct 2025 | Revised: 28 Jan 2026 | Accepted: 09 Feb 2026 | Published: 11 Feb 2026
Abstract
Keywords
quasinormal modes | regular black holes | Unruh temperature | WKB method
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