%0 Journal Article
%T Quantum Backreaction on Three-Dimensional Black Holes and Naked Singularities
%A Casals, M.
%A Fabbri, A.
%A Martinez, C.
%A Zanelli, J.
%J Physical Review Letters
%D 2017
%V 118
%N 13
%I Amer Physical Soc
%@ 0031-9007
%G English
%F Casals_etal2017
%O WOS:000397809100005
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3026), last updated on Fri, 14 Apr 2017 23:10:33 +0000
%X We analytically investigate backreaction by a quantum scalar field on two rotating Bañados-Teitelboim-Zanelli (BTZ) geometries: that of a black hole and that of a naked singularity. In the former case, we explore the quantum effects on various regions of relevance for a rotating black hole space-time. We find that the quantum effects lead to a growth of both the event horizon and the radius of the ergosphere, and to a reduction of the angular velocity, compared to the unperturbed values. Furthermore, they give rise to the formation of a curvature singularity at the Cauchy horizon and show no evidence of the appearance of a superradiant instability. In the case of a naked singularity, we find that quantum effects lead to the formation of a horizon that shields it, thus supporting evidence for the role of quantum mechanics as a cosmic censor in nature.
%R 10.1103/PhysRevLett.118.131102
%U http://arxiv.org/abs/1608.05366
%U https://doi.org/10.1103/PhysRevLett.118.131102
%P 131102-6pp