TY  - JOUR
AU  - Casals, M.
AU  - Fabbri, A.
AU  - Martinez, C.
AU  - Zanelli, J.
PY  - 2017
DA  - 2017//
TI  - Quantum Backreaction on Three-Dimensional Black Holes and Naked Singularities
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 131102
EP  - 6pp
VL  - 118
IS  - 13
PB  - Amer Physical Soc
AB  - 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.
SN  - 0031-9007
UR  - http://arxiv.org/abs/1608.05366
UR  - https://doi.org/10.1103/PhysRevLett.118.131102
DO  - 10.1103/PhysRevLett.118.131102
LA  - English
N1  - WOS:000397809100005
ID  - Casals_etal2017
ER  -