Chaotic few-body vortex dynamics in rotating Bose-Einstein condensates

Vortex Lattices in Rotating Bose-Einstein Condensates

Vortex-lattice dynamics in rotating spinor Bose-Einstein condensates.

We observe interlaced square vortex lattices in rotating dilute-gas spinor Bose-Einstein condensates (BEC). After preparing a hexagonal vortex lattice in a one-component BEC in an internal atomic state |1, we coherently transfer a fraction of the superfluid to a different state |2. The subsequent evolution of this pseudo-spin-1/2 superfluid towards a state of offset square lattices involves an ...

Chaotic dynamics in spinor Bose–Einstein condensates

Concentrating on experimentally relevant cases we discuss nonlinear dynamics and deterministic chaos in F = 1 and F = 2 spinor Bose–Einstein condensates. A thorough numerical and analytical treatment of the equations of motion of symmetric F = 2 spin dynamics in the single-mode approximation elucidates the complex dynamics and uncovers regions of classical chaos in this important quantum gas sy...

Efficiently computing vortex lattices in rapid rotating Bose-Einstein condensates

Article history: Received 21 March 2008 Received in revised form 24 November 2008 Accepted 2 December 2008 Available online 7 December 2008 PACS: 11.10.Jj 11.10.St 31.15.-p

Vortex lattice locking in rotating two-component Bose–Einstein condensates

The vortex density of a rotating superfluid, divided by its particle mass, dictates the superfluid’s angular velocity through the Feynman relation. To find how the Feynman relation applies to superfluid mixtures, we investigate a rotating two-component Bose–Einstein condensate, composed of bosons with different masses. We find that in the case of sufficiently strong interspecies attraction, the...