2020/02/29 by Roberto Emparan, Marija Tomašević · 1 citation
Physics and Astronomy · #Astrophysical Phenomena and Observations #BTZ black hole #Black Holes and Theoretical Physics #Black hole (networking) #Cosmic censorship hypothesis #Event horizon #Extremal black hole #Horizon #Noncommutative and Quantum Gravity Theories #Nonsingular black hole models #Primordial black hole #gr-qc #hep-th
paper · pdf · doi:10.1007/jhep06(2020)038
published as JHEP 06 (2020) 038 · 9 pages. v2: minor changes. Matches published version
openalex created_date 2020/02/14 · openalex publication_date 2020/06/04 · arxiv created 2020/06/08 · arxiv updated 2022/03/07 · openalex updated_date 2026/08/06
Recently it has been shown that quantum fields can be regular on the inner, Cauchy horizon of a rotating BTZ black hole, which appears to indicate a failure of strong cosmic censorship. We argue that, instead, what these results imply is that the inner horizon remains non-singular when leading-order backreaction of the quantum fields is computed, but, after next-order backreaction is accounted for, it will become singular. Then, strong cosmic censorship will be enforced in the BTZ black hole. We support our claims using a four-dimensional holographic dual of the system, which connects the instability of the inner horizon of the BTZ black hole to that of Kerr-type black holes.