Quantum vortex instability and black hole superradiance

Vortices and black holes set the scene for many interesting dynamical processes in physics. Here, we study instability of quantized vortices rotational superradiance around rotating holes, illustrating process that same physics is at play these two seemingly disparate phenomena. We also compare vortex to hole bomb instability, which occurs massive scalar fields Kerr spacetime. Taking inspiration from analogy between modes hydrogen spectrum, compared with nuclear resonances involved $\ensuremath{\alpha}$ decay.