Formation, dynamics and stability of coreless vortex dipoles in phase-separated binary condensates

Details Formation, dynamics and stability of coreless vortex dipoles in phase-separated binary condensates Formation, dynamics and stability of coreless vortex dipoles in phase-separated binary condensates

2011-10-13

arxiv.org/abs/1110.2903v1

Physics

Condensed Matter

Quantum Gases

12 pages, 9 figures

Scientific paper

We study the motion of the Gaussian obstacle potential created by blue detuned laser beam through a phase-separated binary condensate in pancake-shaped traps. For the velocity of the obstacle above a critical velocity, we observe the generation of vortex dipoles in the outer component which can penetrate the inner component. This is equivalent to finite, although small, transport of outer component across the inner component. In the inner component, the same method can lead to the formation of coreless vortex dipoles.

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