Anderson, B.
, Haljan, P.
, Wieman, C.
and Cornell, E.
(2000),
Vortex Precession in Bose-Einstein Condensates: Observations With Filled and Empty Cores, Physical Review Letters
(Accessed November 28, 2023)
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Vortex Precession in Bose-Einstein Condensates: Observations With Filled and Empty Cores
Published
Author(s)
B P. Anderson, P C. Haljan, C E. Wieman,
Abstract
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 2.Citation
Physical Review Letters
Volume
85
Issue
No. 14
Pub Type
Journals
Keywords
Bose-Einstein condensation, superfluidity, vortex
Citation
Created September 30, 2000, Updated October 12, 2021