Oblique dark solitons in supersonic flow of a Bose-Einstein condensate

G. A. El; A. Gammal; A. M. Kamchatnov

doi:10.1103/physrevlett.97.180405

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Oblique dark solitons in supersonic flow of a Bose-Einstein condensate

G. A. El·A. Gammal·A. M. Kamchatnov

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Abstract

In the framework of the Gross-Pitaevskii mean field approach it is shown that the supersonic flow of a Bose-Einstein condensate can support a new type of pattern--an oblique dark soliton. The corresponding exact solution of the Gross-Pitaevskii equation is obtained. It is demonstrated by numerical simulations that oblique solitons can be generated by an obstacle inserted into the flow.

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G. A. El, A. Gammal, A. M. Kamchatnov. 2006-11-02. Oblique dark solitons in supersonic flow of a Bose-Einstein condensate. https://doi.org/10.1103/physrevlett.97.180405

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