Dynamical Creation of Fractionalized Vortices and Vortex Lattices

Details Dynamical Creation of Fractionalized Vortices and Vortex Lattices Dynamical Creation of Fractionalized Vortices and Vortex Lattices

2008-03-03

arxiv.org/abs/0803.0340v2

Phys. Rev. Lett. 101, 010402 (2008)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 3 figures; published version

Scientific paper

10.1103/PhysRevLett.101.010402

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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