Double-humped states in the nonlinear Schrödinger equation with a random potential.
The role of double-humped states in spreading of wave packets for the nonlinear Schrödinger equation (NLSE) with a random potential is explored and the spreading mechanism is unraveled. Comparison to an NLSE with a double-well potential is made. There are two independent effects of the nonlinearity on the double-humped states for the NLSE: coupling to other states and destruction. The interplay between these effects is discussed.
Veksler
H
H
Department of Physics, Technion-Israel Institute of Technology, Haifa, Israel.
Krivolapov
Y
Y
Fishman
S
S