Localization decay induced by strong nonlinearity in disordered systems
Yu. S. KivsharInstitute for Low Temperature Physics and Engineering, 47 Lenin Avenue, Kharkov 310164, U.S.S.RS. A. GredeskulInstitute for Low Temperature Physics and Engineering, 47 Lenin Avenue, Kharkov 310164, U.S.S.RÁngel SánchezInstitute for Low Temperature Physics and Engineering, 47 Lenin Avenue, Kharkov 310164, U.S.S.RLuis VázquezInstitute for Low Temperature Physics and Engineering, 47 Lenin Avenue, Kharkov 310164, U.S.S.R
1990en
ABI
Annotatsiya
The scattering of a nonlinear wave packet as an envelope soliton by a one-dimensional disordered system is studied. It is well known that in the linear limit the transmission coefficient decays exponentially with a characteristic localization length. We predict, using a simple independent scattering approach and soliton perturbation theory in the framework of the nonlinear Schr\"odinger equation, that strong nonlinearity above certain threshold allows undistorted propagation of wave packets.
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