Vortex shedding and drag in dilute Bose-Einstein condensates

Authors
Winiecki, T Jackson, B McCann, JF Adams, CS
Citation
T. Winiecki et al., Vortex shedding and drag in dilute Bose-Einstein condensates, J PHYS B, 33(19), 2000, pp. 4069-4078
Citations number
17
Categorie Soggetti
Physics
Journal title
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
ISSN journal
09534075 → ACNP
Volume
33
Issue
19
Year of publication
2000
Pages
4069 - 4078
Database
ISI
SICI code
0953-4075(20001014)33:19<4069:VSADID>2.0.ZU;2-1
Abstract
Above a critical velocity, the dominant mechanism of energy transfer betwee n a moving object and a dilute Bose-Einstein condensate is vortex formation . In this paper, we discuss the critical velocity for vortex formation and the link between vortex shedding and drag in both homogeneous and inhomogen eous condensates. We find that at supersonic velocities sound radiation als o contributes significantly to the drag force.