Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2001-10-18
Physics
Condensed Matter
Soft Condensed Matter
14 pages, 4 figures. Error in review section corrected, notation simplified, typos corrected. No changes to any results, but a
Scientific paper
10.1103/PhysRevA.65.063611
The theory of vortex motion in a dilute superfluid of inhomogeneous density demands a boundary layer approach, in which different approximation schemes are employed close to and far from the vortex, and their results matched smoothly together. The most difficult part of this procedure is the hydrodynamic problem of the velocity field many healing lengths away from the vortex core. This paper derives and exploits an exact solution of this problem in the two-dimensional case of a linear trapping potential, which is an idealization of the surface region of a large condensate. It thereby shows that vortices in inhomogeneous clouds are effectively 'dressed' by a non-trivial distortion of their flow fields; that image vortices are not relevant to Thomas-Fermi surfaces; and that for condensates large compared to their surface depths, the energetic barrier to vortex penetration disappears at the Landau critical velocity for surface modes.
No associations
LandOfFree
Vortices near surfaces of Bose-Einstein condensates does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Vortices near surfaces of Bose-Einstein condensates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vortices near surfaces of Bose-Einstein condensates will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-212130