5 papers · 1 filter
Vortex precession in a rotating nonaxisymmetric trapped Bose-Einstein condensate
Alexander L. Fetter, Jong-kwan Kim
We study the precession of an off-axis straight vortex in a rotating nonaxisymmetric harmonic trap in the Thomas-Fermi (TF) regime. A time-dependent variational Lagrangian analysis…
Stability of a Vortex in a Rotating Trapped Bose-Einstein Condensate
Alexander L. Fetter, Anatoly A. Svidzinsky
We briefly discuss energy, normal modes and dynamics of a vortex in a trapped Bose-Einstein condensate. Theoretical results are compared with current experiments.
Theory of a dilute low-temperature trapped Bose condensate
Alexander L. Fetter
This set of four lectures reviews various aspects of the theory of a dilute low-temperature trapped Bose gas, starting with (I) a review of the Bogoliubov description of the elemen…
Stability of a Vortex in a Trapped Bose-Einstein Condensate
Anatoly A. Svidzinsky, Alexander L. Fetter
Based on the method of matched asymptotic expansion and on a time-dependent variational analysis, we study the dynamics of a vortex in the large-condensate (Thomas-Fermi) limit. Bo…
Vortex Stability in a Trapped Bose Condensate
Alexander L. Fetter
A vortex in a trapped Bose-Einstein condensate can experience at least two types of instabilities. (1). Macroscopic hydrodynamic motion of the vortex core relative to the center of…