We study the phenomena of mass inflation using the Ori model for a rotating Bañados-Teitelboim-Zanelli (BTZ) black hole that is sufficiently far from extremality, and show that the right Cauchy horizon (${\mathcal{CH}}_R^{+}$) of the BTZ black hole becomes singular. Motivated by the recent analysis of Dias, Reall, Santos [J. High Energy Phys. 12 (2019) 097], we choose the retrograde quasinormal modes to govern the decay of perturbations exterior to the black hole. The resulting model captures the violation of the strong cosmic censorship conjecture near extremality. On the other hand, far from extremality, the ${\mathcal{CH}}_R^{+}$ of a BTZ black hole develops a weak null singularity. Our analysis shows a slowly rotating BTZ black hole will respect strong cosmic censorship.

• Received 25 May 2020
• Accepted 29 July 2020

DOI:https://doi.org/10.1103/PhysRevD.102.044030