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arXiv 1509.04087cond-mat.quant-gas
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三维自由空间中的稳定孤子:自旋轨道耦合的自陷玻色-爱因斯坦凝聚体

Stable Solitons in Three Dimensional Free Space: Self-Trapped Bose-Einstein Condensates with Spin-Orbit Coupling

Yong-Chang Zhang, Zheng-Wei Zhou, Boris A. Malomed, Han Pu

摘要:

通过变分方法和系统的数值分析,我们证明了在三维自由空间中,结合接触自吸引和自旋-轨道耦合的二元原子凝聚体中稳定孤子的存在性。根据分量内和分量间吸引力的相对强度,稳定孤子具有半涡旋或混合模结构。尽管在三维空间中局域立方自吸引引起超临界坍缩,但孤子在随机扰动、运动和碰撞下是稳定的。

英文摘要:

By means of variational methods and systematic numerical analysis, we demonstrate the existence of stable solitons in three-dimensional (3D) free space, in the context of binary atomic condensates combining contact self-attraction and spin-orbit coupling, which can be engineered by available experimental techniques. Depending on the relative strength of the intra- and inter-component attraction, the stable solitons feature a semi-vortex or mixed-mode structure. In spite of the fact that the local cubic self-attraction gives rise to the supercritical collapse in 3D, the solitons are stable against random perturbations, motion, and collisions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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