https://doi.org/10.1140/epjc/s10052-025-14661-5
Regular Article - Theoretical Physics
Linear stability of charged warm holes
Instituto de Física, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2950, Valparaiso, Chile
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Received:
22
May
2025
Accepted:
21
August
2025
Published online:
4
September
2025
Abstract
Charged black holes are known to suffer from an interior instability associated with the presence of the Cauchy horizon. Recently, a hairy charged black hole was proposed that avoids the formation of a Cauchy horizon. It is natural to question whether this instability might manifest in the exterior solution. In this paper, we have analyzed the stability of this black hole. Our results show that vector perturbations are stable, along with the scalar sector for 
. We have also computed the corresponding quasinormal modes (QNMs) and quasibound states (QBSs).
© The Author(s) 2025
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