Spin dynamics in a two dimensional quantum gas
arXiv:1404.7385 · doi:10.1103/PhysRevA.89.051603
Abstract
We have investigated spin dynamics in a 2D quantum gas. Through spin-changing collisions, two clouds with opposite spin orientations are spontaneously created in a Bose-Einstein condensate. After ballistic expansion, both clouds acquire ring-shaped density distributions with superimposed angular density modulations. The density distributions depend on the applied magnetic field and are well explained by a simple Bogoliubov model. We show that the two clouds are anti-correlated in momentum space. The observed momentum correlations pave the way towards the creation of an atom source with non-local Einstein-Podolsky-Rosen entanglement.
5 pages, 4 figures
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- Spin diffusion in ultracold spin-orbit coupled K gas
- Exploring the thermodynamics of spin-1 Rb Bose Gases with synthetic magnetization