Matter-wave gap vortices in optical lattices
We predict the existence of spatially localized nontrivial topological states of a Bose-Einstein condensate with repulsive atomic interactions confined by an optical lattice. These nonlinear localized states, matter-wave gap vortices, carry a vortexlike phase dislocation and exist in the gaps of the matter-wave band-gap spectrum due to the Bragg scattering. We discuss the structure, stability, and formation dynamics of the gap vortices in the case of two-dimensional optical lattices.
|Collections||ANU Research Publications|
|Source:||Physical Review Letters|
|Ostrovskaya_MatterWaveVortices2004.pdf||1.23 MB||Adobe PDF|
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