Abstract:
We analyze a perturbed version of the complex Toda chain (CTC) in an attempt to describe the adiabatic N-soliton train interactions of the perturbed nonlinear Schrodinger equation. We study perturbations with weak quadratic and periodic external potentials analytically and numerically. The perturbed CTC adequately models the N-soliton train dynamics for both types of potentials. As an application of the developed theory, we consider the dynamics of a train of matter-wave solitons confined in a parabolic trap and an optical lattice.
Keywords:
complex Toda chain, adiabatic dynamics, soliton train, expulsion of a soliton.
Citation:
V. S. Gerdjikov, B. B. Baizakov, M. Salerno, “Modeling Adiabatic N-Soliton Interactions and Perturbations”, TMF, 144:2 (2005), 302–312; Theoret. and Math. Phys., 144:2 (2005), 1138–1146