Mesoscopic sensitivity of speckles in disordered nonlinear media to changes of disordered potential

摘要

We show that the sensitivity of wave speckle patterns in disordered nonlinearmedia to changes of scattering potential increases with sample size. For largeenough sample size this quantity diverges, which implies that at given coherentwave incident on a sample there are multiple solutions for the spatialdistribution of the wave's density. The number of solutions increasesexponentially with the sample size.