Vortex Precession in Bose-Einstein Condensates: Observations with Filled and Empty Cores Public Deposited
  • We have observed and characterized the dynamics of singly quantized vortices in dilute-gas Bose-Einstein condensates. Our condensates are produced in a superposition of two internal states of ⁸⁷Rb, with one state supporting a vortex and the other filling the vortex core. Subsequently, the state filling the core can be partially or completely removed, reducing the radius of the core by as much as a factor of 13, all the way down to its bare value of the healing length. The corresponding superfluid rotation rates, evaluated at the core radius, vary by a factor of 150, but the precession frequency of the vortex core about the condensate axis changes by only a factor of two.

Date Issued
  • 2000-10-02
Academic Affiliation
Journal Title
Journal Issue/Number
  • 14
Journal Volume
  • 85
File Extent
  • 2857-2860
Last Modified
  • 2020-01-14
Resource Type
Rights Statement
  • 10.1103/PhysRevLett.85.2857
  • 0031-9007