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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2406.14042 |
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| _version_ | 1866917783827120128 |
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| author | Zheng, Zhen Zhu, Yan-Qing Zhang, Shanchao Zhu, Shi-Liang Wang, Z. D. |
| author_facet | Zheng, Zhen Zhu, Yan-Qing Zhang, Shanchao Zhu, Shi-Liang Wang, Z. D. |
| contents | The essential role of synthetic spin-orbit coupling in discovering new topological matter phases with cold atoms is widely acknowledged. However, the engineering of spin-orbit coupling remains unclear for arbitrary-spin models due to the complexity of spin matrices. In this paper, we develop a more general but relatively straightforward method to achieve spin-orbit coupling for multispin models. Our approach hinges on controlling the coupling between distinct pseudo-spins through two intermediary states, resulting in tunneling with spin flips that have direction-dependent strength. The engineered spin-orbit coupling can facilitate topological phase transitions with Chern numbers over 1, a unique characteristic of multispin models compared to spin-1/2 models. By utilizing existing cold atom techniques, our proposed method provides an ideal platform for investigating topological properties related to large Chern numbers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_14042 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Synthetic spin-orbit coupling for the multispin models in optical lattices Zheng, Zhen Zhu, Yan-Qing Zhang, Shanchao Zhu, Shi-Liang Wang, Z. D. Quantum Gases The essential role of synthetic spin-orbit coupling in discovering new topological matter phases with cold atoms is widely acknowledged. However, the engineering of spin-orbit coupling remains unclear for arbitrary-spin models due to the complexity of spin matrices. In this paper, we develop a more general but relatively straightforward method to achieve spin-orbit coupling for multispin models. Our approach hinges on controlling the coupling between distinct pseudo-spins through two intermediary states, resulting in tunneling with spin flips that have direction-dependent strength. The engineered spin-orbit coupling can facilitate topological phase transitions with Chern numbers over 1, a unique characteristic of multispin models compared to spin-1/2 models. By utilizing existing cold atom techniques, our proposed method provides an ideal platform for investigating topological properties related to large Chern numbers. |
| title | Synthetic spin-orbit coupling for the multispin models in optical lattices |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/2406.14042 |