Violating Weak Cosmic Censorship in AdS$_3$ via Gedanken Experiment

Abstract: The weak cosmic censorship conjecture (wCCC) might not be as robust as one would expect. We present a potential counterexample to the wCCC in a rotating three-dimensional anti-de Sitter (AdS$_3$) spacetime. We extend the parameter range of the quantum corrected BTZ (qBTZ) black hole. We examine the infall of test particles with large orbital angular momentum into an extremal black hole. Our findings indicate that, under certain conditions -- such as neglecting the self-force effects -- the event horizon can be destroyed, leading to a violation of the wCCC. The results suggest that this solution should either be excluded from the applicability of the wCCC or should be examined with self-force effects incorporated.