Controlled Vortex-Sound Interactions in Atomic Bose-Einstein Condensates
Controlled Vortex-Sound Interactions in Atomic Bose-Einstein Condensates
The low temperature dynamics of a vortex in a trapped quasi-two-dimensional Bose-Einstein condensate are studied quantitatively. Precession of an off-centered vortex in a dimple trap, embedded in a weaker harmonic trap, leads to the emission of sound in a dipolar radiation pattern. Sound emission and reabsorption can be controlled by …