The topological structure of vortex in BEC

Abstract:

We find that there exists an elementary topological current in Bose-Einstein condensation. Based on the -mapping topological current theory, the implicit function theorem and the Taylor expansion, the topological structure of vortex lines is detailed in the neighborhoods of the bifurcation points of the condensate wave function.

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1. Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000, P.R. China, , , , , , CN

   Y. Duan & H. Zhang

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1. Y. Duan
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2. H. Zhang
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Received: 9 April 1998 / Revised: 28 August 1998 / Accepted: 31 August 1998

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Duan, Y., Zhang, H. The topological structure of vortex in BEC. Eur. Phys. J. D 5, 47–51 (1999). https://doi.org/10.1007/s100530050227

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• Issue Date: January 1999

• DOI: https://doi.org/10.1007/s100530050227

• PACS. 03.75.Fi Phase coherent atomic ensemble (Bose condensation) - 02.40.Pc General topology