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The Interference Effect of a Bose–Einstein Condensate in a Ring-Shaped Trap

  • 1Key Laboratory of Atomic Frequency Standards, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071

  • 2Graduate School of the Chinese Academy of Sciences, Beijing 100049

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  • Received Date: April 04, 2012
  • Revised Date: April 29, 2012
  • Published Date: April 30, 2012
    Abstract
  • We have studied the interference effect of a Bose–Einstein condensate expanding in a ring-shaped trap. The dynamic process of the condensate is analyzed based on the Gross–Pitaevskii equation. Our numerical results show that a petal-like interference pattern is formed during expansion within the ring-shaped trap. The petal number depends on the evolution time, which can be well explained by the interference of two flows of the condensate.
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    • References (20)
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