Berlin 2001 – scientific programme
Parts | Days | Selection | Search | Downloads | Help
Q: Quantenoptik
Q 1: Poster: Atom Optics
Q 1.15: Poster
Monday, April 2, 2001, 12:30–15:00, AT2
Dynamics of vortices in Bose-Einstein-Condensates with constrained geometries — •Thomas Schulte1, Luis Santos1, Anna Sanpera1, Janne-Pietri Martikainen2, and Kalle-Antti Suominen3 — 1Institut fuer Theoretische Physik, Appelstr. 2, D-30167 Hannover, Germany — 2Helsinki Institute of Physics, PL 9, FIN-00014 Helsingin yliopisto, Finland — 3Departement of Applied Physics, University of Turku, FIN-20014, Finland
We have analyzed the interaction of vortices in Bose-Einstein-Condensates with constrained geometries, showing that the trap boundaries strongly modify the vortex dynamics. In particular we have numerically and analytically studied the interaction of 2 vortices in a 2-D ring. We show that depending on the relative vortex circulation and the relative position of the vortex lines, different regimes of vortex dynamics can be expected.