247 citations · 6.3k across the 114 of their papers we have counts for
6 papers · 1 filter
Holographic Batteries
William D. Biggs, Jorge E. Santos
We study a three-dimensional holographic CFT under the influence of a background electric field on a spacetime containing two black hole horizons. The electric background is fixed…
Scalar QNM spectra of Kerr and Reissner-Nordström revealed by eigenvalue repulsions in Kerr-Newman
Alex Davey, Oscar J. C. Dias, Jorge E. Santos
Recent studies of the gravito-electromagnetic frequency spectra of Kerr-Newman (KN) black holes have revealed two families of quasinormal modes (QNMs), namely photon sphere modes a…
Black hole superradiant instability for massive spin-2 fields
Oscar J. C. Dias, Giuseppe Lingetti, Paolo Pani +1
Due to coherent superradiant amplification, massive bosonic fields can trigger an instability in spinning black holes, tapping their energy and angular momentum and forming macrosc…
Static Black Binaries in de Sitter
Oscar J. C. Dias, Gary W. Gibbons, Jorge E. Santos +1
We construct the first four-dimensional multi-black hole solution of general relativity with a positive cosmological constant. The solution consists of two static black holes whose…
Extremal Kerr black holes as amplifiers of new physics
Gary T. Horowitz, Maciej Kolanowski, Grant N. Remmen +1
We show that extremal Kerr black holes are sensitive probes of new physics. Stringy or quantum corrections to general relativity are expected to generate higher-curvature terms in…
Superradiance and black resonator strings encounter helical black strings
Oscar J. C. Dias, Takaaki Ishii, Keiju Murata +2
We construct a cohomogeneity-1 helical black string in six-dimensional Einstein gravity. The helical solution branches from the onset of the gravitational superradiant instability…