3 papers
hep-th2019
Hunting for fermionic instabilities in charged AdS black holes
Oscar J. C. Dias, Ramon Masachs, Olga Papadoulaki +1
Fermions scattering on a black hole background cannot develop an instability sourced by superradiance. However, in a global (or planar) AdS-Reissner-Nordström background fermio…
hep-th2019
New islands of stability with double-trace deformations
Ramon Masachs, Benson Way
We assess the role of a resonant spectrum in the AdS instability, and quantify the extent to which breaking the resonant spectrum of AdS can restore stability. Specifically, we stu…
gr-qc2019
Multi-oscillating Boson Stars
Matthew Choptuik, Ramon Masachs, Benson Way
We propose that stable boson stars generically fall within an infinite-parameter family of solutions that oscillate on any number of non-commensurate frequencies. We numerically co…