Coherent propagation of waves in dilute random media with weak nonlinearity
Coherent propagation of waves in dilute random media with weak nonlinearity
We develop a diagrammatic theory for transport of waves in disordered media with weak nonlinearity. We first represent the solution of the nonlinear wave equation as a nonlinear Born series. From this, we construct nonlinear ladder and crossed diagrams for the average wave intensity. Then, we sum up the diagrammatic …