Trapping and transmission of matter-wave solitons in a collisionally inhomogeneous environment

Details Trapping and transmission of matter-wave solitons in a collisionally inhomogeneous environment Trapping and transmission of matter-wave solitons in a collisionally inhomogeneous environment

2005-09-18

arxiv.org/abs/cond-mat/0509471v1

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 4 figures

Scientific paper

10.1103/PhysRevA.74.053614

We investigate bright matter-wave solitons in the presence of a spatially varying scattering length. It is demonstrated that, even in the absence of any external trapping potential, a soliton can be confined due to the inhomogeneous collisional interactions. Moreover we observe the enhanced transmission of matter-wave solitons through potential barriers for suitably chosen spatial variations of the scattering length. The results indicate that the manipulation of atomic interactions can become a versatile tool to control the dynamics of matter waves.

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