Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2001-01-19
J. Phys. B: At. Mol. Opt. Phys., 34, L113-L119 (2001)
Physics
Condensed Matter
Soft Condensed Matter
8 pages, 4 figures; accepted for publication in J. Phys. B (Letters)
Scientific paper
10.1088/0953-4075/34/4/105
We propose a simple stirring experiment to generate quantized ring currents and solitary excitations in Bose-Einstein condensates in a toroidal trap geometry. Simulations of the 3D Gross-Pitaevskii equation show that pure ring current states can be generated efficiently by adiabatic manipulation of the condensate, which can be realized on experimental time scales. This is illustrated by simulated generation of a ring current with winding number two. While solitons can be generated in quasi-1D tori, we show the even more robust generation of hybrid, solitonic vortices (svortices) in a regime of wider confinement. Svortices are vortices confined to essentially one-dimensional dynamics, which obey a similar phase-offset--velocity relationship as solitons. Marking the transition between solitons and vortices, svortices are a distinct class of symmetry-breaking stationary and uniformly rotating excited solutions of the 2D and 3D Gross-Pitaevskii equation in a toroidal trapping potential. Svortices should be observable in dilute-gas experiments.
Brand Joachim
Reinhardt William P.
No associations
LandOfFree
Generating ring currents, solitons, and svortices by stirring a Bose-Einstein condensate in a toroidal trap 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 Generating ring currents, solitons, and svortices by stirring a Bose-Einstein condensate in a toroidal trap, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Generating ring currents, solitons, and svortices by stirring a Bose-Einstein condensate in a toroidal trap will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-72430