Solitonic transmission of Bose-Einstein matter waves

Details Solitonic transmission of Bose-Einstein matter waves Solitonic transmission of Bose-Einstein matter waves

2003-05-30

arxiv.org/abs/cond-mat/0305714v3

Phys. Rev. A 68 (2003) 063608

Physics

Condensed Matter

5 pages, 4 figures

Scientific paper

10.1103/PhysRevA.68.063608

We consider a continuous atom laser propagating through a wave guide with a constriction. Two different types of transmitted stationary flow coexist. The first one coincides, at low incident current, with the non-interacting flow. As the incident flux increases, the repulsive interactions decrease the corresponding transmission coefficient. The second type only occurs for sufficiently large incident currents and has a solitonic structure. Remarkably, for any chemical potential there always exists a value of the incident flux at which the solitonic flow is perfectly transmitted.

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