Synthetic 3D Spin-Orbit Coupling

Details Synthetic 3D Spin-Orbit Coupling Synthetic 3D Spin-Orbit Coupling

2011-12-27

arxiv.org/abs/1112.6022v1

Physics

Condensed Matter

Quantum Gases

4 pages, 6 figures

Scientific paper

We describe a method for creating a three-dimensional analogue to Rashba spin-orbit coupling in systems of ultracold atoms. This laser induced coupling uses Raman transitions to link four internal atomic states with a tetrahedral geometry, and gives rise to a Dirac point that is robust against environmental perturbations. We present an exact result showing that such a spin-orbit coupling in a fermionic system always rise to a molecular bound state.

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