Black Hole Superradiance in Dynamical Chern-Simons Gravity

Understand

Black hole superradiance provides a window into the dynamics of light scalar fields and their interactions close to a rotating black hole.

• Due to the rotation of the black hole, the amplitude of the scalar field becomes magnified, leading to a "black hole bomb" effect.
• Recent work has demonstrated that rotating black holes in dynamical Chern-Simons gravity possess unique structures, the "Chern-Simons caps," which may influence the behavior of matter near the black hole.
• Motivated by the presence of these caps, we study superradiance in dynamical Chern-Simons gravity in the context of a slowly rotating black hole.