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Black holes as particle detectors: evolution of superradiant instabilities
Richard Brito, Vitor Cardoso, Paolo Pani
Superradiant instabilities of spinning black holes can be used to impose strong constraints on ultralight bosons, thus turning black holes into effective particle detectors. Howeve…
Ultra-high-energy debris from the collisional Penrose process
Emanuele Berti, Richard Brito, Vitor Cardoso
Soon after the discovery of the Kerr metric, Penrose realized that superradiance can be exploited to extract energy from black holes. The original idea (involving the breakup of a…
The nonlinear dynamical stability of infrared modifications of gravity
Richard Brito, Alexandra Terrana, Matthew Johnson +1
Scalar forces "screened" by the Vainshtein mechanism may hold the key to understanding the cosmological expansion of our universe, while predicting new and exciting features in the…
Superradiant instability of black holes immersed in a magnetic field
Richard Brito, Vitor Cardoso, Paolo Pani
Magnetic fields surrounding spinning black holes can confine radiation and trigger superradiant instabilities. To investigate this effect, we perform the first fully-consistent lin…