Spin-Orbit Coupling and Spin Textures in Optical Superlattices
We propose and demonstrate 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 li...
| Main Authors: | , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2017
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| Online Access: | http://hdl.handle.net/1721.1/109173 https://orcid.org/0000-0001-6155-9463 https://orcid.org/0000-0002-9717-129X https://orcid.org/0000-0003-3231-3880 https://orcid.org/0000-0002-0096-4323 https://orcid.org/0000-0002-1446-9649 https://orcid.org/0000-0002-9528-3044 |
| Summary: | We propose and demonstrate 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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