We locate stochastic resonances in a two-dimensional quantum percolation model by studying the variation of transmittance versus energy. We study the nature of the wave functions at the resonant energies using a multifractal analysis and compare the behavior of the multifractal spectrum of the resonant states with that for the localized states in the same model. The resonant states found by us appear to be necklace states described by Pendry.

• Received 25 February 1992

DOI:https://doi.org/10.1103/PhysRevB.47.3097