Destroying the Event Horizon of a Rotating Black-Bounce Black Hole

TL;DR

This paper investigates whether the event horizon of a rotating Black-Bounce black hole can be destroyed using high angular momentum particles and scalar fields, revealing conditions under which the horizon can be compromised.

Contribution

It demonstrates that the event horizon of rotating Black-Bounce black holes can be destroyed under certain conditions, especially with large angular momentum inputs and specific parameter values.

Findings

Event horizon can be destroyed under extreme conditions.

Higher parameter m increases susceptibility to horizon destruction.

Scalar fields and particles with large angular momentum can compromise the horizon.

Abstract

For a rotating black hole to be nonsingular, it means that there are no spacetime singularities at its center. The destruction of the event horizon of such a rotating black hole is not constrained by the weak cosmic censorship conjecture, which may provide possibilities to understand the internal structure of black hole event horizons. In this paper, we employ test particles with large angular momentum and a scalar field with large angular momentum to investigate the potential of destroying the event horizon of rotating Black-Bounce black holes. Additionally, we investigate the possibility of destroying the event horizon of a rotating Black-Bounce black hole by considering test particles with large angular momentum and scalar fields with large angular momentum, covering the entire range of the rotating Black-Bounce black hole. We analyze the influence of the parameter m on the possibility of destroying the event horizon in this spacetime. Our analysis reveals that under extreme or near-extreme conditions, the event horizon of this spacetime can potentially be destroyed after the absorption of particles energy and angular momentum, as well as the scattering of scalar fields. Additionally, we find that as the parameter m increases, the event horizon of this spacetime model becomes more susceptible to destruction after the injection of test particles or the scattering of scalar fields.