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
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.
收稿日期: 2021-03-26
出版日期: 2021-07-03
:
03.75.Hh
(Static properties of condensates; thermodynamical, statistical, and structural properties)
03.75.Mn
(Multicomponent condensates; spinor condensates)
05.30.Jp
(Boson systems)
31.15.Md
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2021, Vol. 38 
