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Self-Bound Quantum Droplet with Internal Stripe Structure in One-Dimensional Spin-Orbit-Coupled Bose Gas |
| Yuncheng Xiong and Lan Yin* |
| School of Physics, Peking University, Beijing 100871, China |
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| Cite this article: |
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Yuncheng Xiong and Lan Yin 2021 Chin. Phys. Lett. 38 070301 |
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Abstract We study the quantum-droplet state in a three-dimensional (3D) Bose gas in the presence of 1D spin-orbit coupling and Raman coupling, especially the stripe phase with density modulation, by numerically computing the ground state energy including the mean-field energy and Lee–Huang–Yang correction. In this droplet state, the stripe can exist in a wider range of Raman coupling, compared with the BEC-gas state. More intriguingly, both spin-orbit coupling and Raman coupling strengths can be used to tune the droplet density.
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Received: 26 March 2021
Published: 03 July 2021
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| PACS: |
03.75.Hh
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(Static properties of condensates; thermodynamical, statistical, and structural properties)
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03.75.Mn
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(Multicomponent condensates; spinor condensates)
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05.30.Jp
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(Boson systems)
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31.15.Md
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| Fund: Supported by the National Key R&D Program of China (Grant No. 2016YFA0301501) |
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