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Scalar Perturbations of a Single-Horizon Regular Black Hole

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arxiv 2009.02367 v2 pith:QDVJF3EE submitted 2020-09-04 gr-qc

Ramin G. Daghigh , Michael D. Green , Jodin C. Morey , Gabor Kunstatter This is my paper · ORCID
classification gr-qc
keywords blackholeperturbationsregularscalarholesspacetimeareal
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abstract

We investigate the massless scalar field perturbations, including the quasinormal mode spectrum and the ringdown waveform, of a regular black hole spacetime that was derived via the Loop Quantum Gravity inspired polymer quantization of spherical $4$D black holes. In contrast to most, if not all, of the other regular black holes considered in the literature, the resulting nonsingular spacetime has a single bifurcative horizon and hence no mass inflation. In the interior, the areal radius decreases to a minimum given by the Polymerization constant, $k$, and then re-expands into a Kantowski-Sachs universe. We find indications that this black hole model is stable against small scalar perturbations. We also show that an increase in the magnitude of $k$ will decrease the height of the QNM potential and gives oscillations with lower frequency and less damping.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Constraining polymerized black holes with quasi-circular extreme mass-ratio inspirals

    gr-qc 2024-12 conditional novelty 6.0 of 10

    A future LISA observation of an extreme-mass-ratio inspiral around a polymerized black hole could constrain the quantum parameter k-hat to about 0.003, roughly two orders of magnitude tighter than current black hole s...

  2. Echoes of a hairy black hole from gravitational decoupling

    gr-qc 2026-04 unverdicted novelty 5.0 of 10

    Axial perturbations of a gravitationally decoupled hairy black hole develop a double-peak potential that dynamically generates echo-like late-time waveforms in a suitable (α, β) region.

  3. Probing black holes via quasinormal modes in a dark energy-induced dark matter

    gr-qc 2024-12 reject novelty 5.0 of 10

    For a dark-energy-induced dark matter black hole metric, quasinormal mode frequencies decrease in real part and damping as η and λG increase, relative to Schwarzschild.

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