Published for SISSA by Springer
Received: September 4, 2015
Accepted: December 10, 2015
Published: December 28, 2015
Black holes with a single Killing vector field: black
resonators
´
Oscar J.C. Dias,
a
Jorge E. Santos
b
and Benson Way
b
a
STAG research centre and Mathematical Sciences, University of Southampton,
Southampton, U.K.
b
DAMTP, Centre for Mathematical Sciences, University of Cambridge,
Wilberforce Road, Cambridge CB3 0WA, U.K.
E-mail: O.J.Campos-Dias@soton.ac.uk, J.E.Santos@damtp.cam.ac.uk,
B.Way@damtp.cam.ac.uk
Abstract: We numerically construct asymptotically anti-de Sitter (AdS) black holes in
four dimensions that contain only a single Killing vector field. These solutions, which
we coin black resonators, link the superradiant instability of Kerr-AdS to the nonlinear
weakly turbulent instability of AdS by connecting the onset of the superradiance instabil-
ity to smooth, horizonless geometries called geons. Furthermore, they demonstrate non-
uniqueness of Kerr-AdS by sharing asymptotic charges. Where black resonators coexist
with Kerr-AdS, we find that the black resonators have higher entropy. Nevertheless, we
show that black resonators are unstable and comment on the implications for the endpoint
of the superradiant instability.
Keywords: Black Holes, AdS-CFT Correspondence, Classical Theories of Gravity
ArXiv ePrint: 1505.04793
Open Access,
c
The Authors.
Article funded by SCOAP
3
.
doi:10.1007/JHEP12(2015)171