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

G. Theocharis·P. Schmelcher·P. G. Kevrekidis·D. J. Frantzeskakis
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Abstract

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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G. Theocharis, P. Schmelcher, P. G. Kevrekidis, D. J. Frantzeskakis. 2005-09-18. Trapping and transmission of matter-wave solitons in a collisionally inhomogeneous environment. https://doi.org/10.1103/physreva.74.053614

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