Towards a violation of cosmic censorship

TL;DR

This paper challenges the idea that superradiant instabilities of Kerr-AdS black holes lead to smaller black resonators, arguing that the proposed endpoint does not actually exist within $AdS_4$ supergravity.

Contribution

It provides a theoretical argument against the existence of a limiting black resonator as the endpoint of superradiant instability.

Findings

Superradiant instability does not culminate in a limiting black resonator.

Theoretical analysis within $AdS_4$ supergravity shows the endpoint is non-existent.

Challenges previous numerical evidence suggesting a stable endpoint.

Abstract

Numerical evidence suggests that the superradiant instability of Kerr-AdS black holes and "black resonators" evolves to smaller and smaller scales towards a "limiting" black resonator. Using $AdS_4$ supergravity, we argue that this putative endpoint to the superradiant instability does not exist.