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The topological structure of vortex in BEC

  • Y. Duan
  • H. Zhang

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.

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

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Copyright information

© EDP Sciences, Springer-Verlag 1999

Authors and Affiliations

  • Y. Duan
    • 1
  • H. Zhang
    • 1
  1. 1.Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000, P.R. ChinaCN

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