Quasinormal modes of black holes in a toy-model for cumulative quantum
  gravity
  The idea that quantum gravity effects might leak outside the horizon of a
black hole has recently been intensively considered. In this study, we
calculate the quasinormal modes as a function of the location and amplitude of
a generic metric perturbation distorting to the Schwarzschild spacetime. We
conclude on the possible observability of quantum metric corrections by current
and future gravitational wave experiments.
