English

Strong Cosmic Censorship in Two Dimensions

High Energy Physics - Theory 2021-06-21 v2 General Relativity and Quantum Cosmology

Abstract

We study the behaviour of a free massive scalar wave-packet near the Cauchy horizon of an AdS2\mathrm{AdS}_2 black hole and find that it becomes infinitely differentiable for smooth initial data, independently of the parameters describing the spacetime or the scalar. This indicates a violation of the strong cosmic censorship conjecture at the classical level. We discuss our result in connection with some recent observations of violation of the conjecture for certain nearly extremal black holes.

Keywords

Cite

@article{arxiv.2011.03499,
  title  = {Strong Cosmic Censorship in Two Dimensions},
  author = {Upamanyu Moitra},
  journal= {arXiv preprint arXiv:2011.03499},
  year   = {2021}
}

Comments

13 pages, 1 figure v2: Title changed, reference added; approximates the published Letter

R2 v1 2026-06-23T19:58:10.315Z