Kerr-CFT and gravitational perturbations

@inproceedings{Dias2009KerrCFTAG,
  title={Kerr-CFT and gravitational perturbations},
  author={{\'O}scar Jo{\~a}o Campos Dias and Harvey Reall and Jorge E. Santos},
  year={2009}
}
Motivated by the Kerr-CFT conjecture, we investigate perturbations of the near-horizon extreme Kerr spacetime. The Teukolsky equation for a massless field of arbitrary spin is solved. Solutions fall into two classes: normal modes and traveling waves. Imposing suitable (outgoing) boundary conditions, we find that there are no unstable modes. The explicit… CONTINUE READING