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arXiv · 1606.03514

Spin-Orbit Coupling and Spin Textures in Optical Superlattices

Junru Li·Wujie Huang·Boris Shteynas·Sean Burchesky·Furkan Cagri Top·Edward Su·Jeongwon Lee·Alan O. Jamison·Wolfgang Ketterle
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Abstract

We proposed and demonstrated a new approach for realizing spin orbit coupling with ultracold atoms. We use orbital levels in a double well potential as pseudospin states. Two-photon Raman transitions between left and right wells induce spin-orbit coupling. This scheme does not require near resonant light, features adjustable interactions by shaping the double well potential, and does not depend on special properties of the atoms. A pseudospinor Bose-Einstein condensate spontaneously acquires an antiferromagnetic pseudospin texture which breaks the lattice symmetry similar to a supersolid.

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Junru Li, Wujie Huang, Boris Shteynas, Sean Burchesky, Furkan Cagri Top, Edward Su, Jeongwon Lee, Alan O. Jamison, Wolfgang Ketterle. 2016-10-27. Spin-Orbit Coupling and Spin Textures in Optical Superlattices. https://doi.org/10.1103/physrevlett.117.185301

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