Superradiant Instability of Five-Dimensional Rotating Charged AdS Black Holes

  title={Superradiant Instability of Five-Dimensional Rotating Charged AdS Black Holes},
  author={Alikram N. Aliev and Ozgur Delice},
  journal={Physical Review D},
We study the instability of small AdS black holes with two independent rotation parameters in minimal five-dimensional gauged supergravity to massless scalar perturbations. We analytically solve the Klein-Gordon equation for low-frequency perturbations in two regions of the spacetime of these black holes: namely, in the region close to the horizon and in the far-region. By matching the solutions in an intermediate region, we calculate the frequency spectrum of quasinormal modes. We show that in… 

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