Matter-wave solitons of collisionally inhomogeneous condensates

Details Matter-wave solitons of collisionally inhomogeneous condensates Matter-wave solitons of collisionally inhomogeneous condensates

2005-05-05

arxiv.org/abs/cond-mat/0505127v1

Physics

Condensed Matter

Other Condensed Matter

19 pages, 4 figures

Scientific paper

10.1103/PhysRevA.72.033614

We investigate the dynamics of matter-wave solitons in the presence of a spatially varying atomic scattering length and nonlinearity. The dynamics of bright and dark solitary waves is studied using the corresponding Gross-Pitaevskii equation. The numerical results are shown to be in very good agreement with the predictions of the effective equations of motion derived by adiabatic perturbation theory. The spatially dependent nonlinearity leads to a gravitational potential that allows to influence the motion of both fundamental as well as higher order solitons.

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