Physics – Quantum Physics
Scientific paper
2007-09-13
Phys. Rev. A 76, 043602 (2007)
Physics
Quantum Physics
8 pages, 7 figures, one reference updated, typos corrected
Scientific paper
10.1103/PhysRevA.76.043602
We study the dynamics of vortices in ideal and weakly interacting Bose-Einstein condensates using a Ritz minimization method to solve the two-dimensional Gross-Pitaevskii equation. For different initial vortex configurations we calculate the trajectories of the vortices. We find conditions under which a vortex-antivortex pair annihilates and is created again. For the case of three vortices we show that at certain times two additional vortices may be created, which move through the condensate and annihilate each other again. For a noninteracting condensate this process is periodic, whereas for small interactions the essential features persist, but the periodicity is lost. The results are compared to exact numerical solutions of the Gross-Pitaevskii equation confirming our analytical findings.
Bao Weizhu
Jaksch Dieter
Klein Alexander
Zhang Yanzhi
No associations
LandOfFree
Dynamics of vortices in weakly interacting 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 Dynamics of vortices in weakly interacting Bose-Einstein condensates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamics of vortices in weakly interacting Bose-Einstein condensates will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-215395