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arXiv · cond-mat/9911389

Josephson Current Flowing in Cyclically Coupled Bose-Einstein Condensates

Makoto Tsubota·Kenichi Kasamatsu
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Abstract

The Josephson effect in cyclically coupled Bose-Einstein condensates is studied theoretically. We analyze the simultaneous Gross-Pitaevskii equations with coupling terms between adjacent condensates. Depending on the initial relative phases between condensates, Josephson current flows cyclically to make a quantized vortex. Reducing the coupling between condensates changes the motion from periodic to chaotic, thus suppressing the cyclic current. The relation to the Kibble-Zurek mechanism is discussed.

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Makoto Tsubota, Kenichi Kasamatsu. 2000-05-28. Josephson Current Flowing in Cyclically Coupled Bose-Einstein Condensates. https://doi.org/10.1143/jpsj.69.1942

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