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arXiv · 0803.0340

Dynamical Creation of Fractionalized Vortices and Vortex Lattices

An-Chun Ji·W. M. Liu·Jun Liang Song·Fei Zhou
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Abstract

We investigate dynamic creation of fractionalized half-quantum vortices in Bose-Einstein condensates of sodium atoms. Our simulations show that both individual half-quantum vortices and vortex lattices can be created in rotating optical traps when additional pulsed magnetic trapping potentials are applied. We also find that a distinct periodically modulated spin-density-wave spatial structure is always embedded in square half-quantum vortex lattices; this structure can be conveniently probed by taking absorption images of ballistically expanding cold atoms in a Stern-Gerlach field.

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An-Chun Ji, W. M. Liu, Jun Liang Song, Fei Zhou. 2008-07-10. Dynamical Creation of Fractionalized Vortices and Vortex Lattices. https://doi.org/10.1103/physrevlett.101.010402

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