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Interconversion of dark soliton and Josephson vortex in a quasi-1D long Bose Josephson junction

V. M. Kaurov·A. B. Kuklov
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Abstract

Dark soliton (DS) and Josephson vortex (JV) in quasi-1D long Bose Josephson junction (BJJ) can be interconverted by tuning Josephson coupling. Rates of the interconversion as well as of the thermally activated phase-slip effect, resulting in the JV switching its vorticity, have been evaluated. The role of quantum phase-slip in creating superposition of JVs with opposite vorticities as a qubit is discussed as well. Utilization of the JV for controlled and coherent transfer of atomic Bose-Einstein condensate (BEC) is suggested.

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V. M. Kaurov, A. B. Kuklov. 2004-06-15. Interconversion of dark soliton and Josephson vortex in a quasi-1D long Bose Josephson junction. https://arxiv.org/abs/cond-mat/0312084

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