Watching a superfluid untwist itself: Recurrence of Rabi oscillations in a Bose-Einstein condensate
Abstract
The order parameter of a condensate with two internal states can continuously distort in such a way as to remove twists that have been imposed along its length. We observe this effect experimentally in the collapse and recurrence of Rabi oscillations in a magnetically trapped, two-component Bose-Einstein condensate of 87Rb.
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