Stability of a Vortex in a Trapped Bose-Einstein Condensate
| dc.creator | Svidzinsky, Anatoly A. | |
| dc.creator | Fetter, Alexander L. | |
| dc.date | 1998-11-25 | |
| dc.date | 1999-07-30 | |
| dc.date.accessioned | 2026-07-07T03:12:11Z | |
| dc.date.available | 2026-07-07T03:12:11Z | |
| dc.description | 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. Both methods as well as an analytical solution of the Bogoliubov equations show that a vortex in a trapped Bose-Einstein condensate has formally unstable normal mode(s) with positive normalization and negative frequency, corresponding to a precession of the vortex line around the center of the trap. In a rotating trap, the solution becomes stable above an angular velocity $Ω_m$ characterizing the onset of metastability with respect to small transverse displacements of the vortex from the central axis. | |
| dc.description | RevTex, 5 pages, no figures, we have added a section in which dynamics of a vortex is studied using the method of matched asymptotic expansion | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9811348 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9811348 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/28810 | |
| dc.subject | Statistical Mechanics | |
| dc.title | Stability of a Vortex in a Trapped Bose-Einstein Condensate | |
| dc.type | text |