Transition from vortices to solitonic vortices in trapped atomic Bose-Einstein condensates
Transition from vortices to solitonic vortices in trapped atomic Bose-Einstein condensates
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俘获原子玻色-爱因斯坦凝聚态中从涡旋到孤子涡旋的转变
DOI：
10.1103/physreva.94.023627
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发表时间：
2016
影响因子：
2.9
通讯作者：
N. Parker
中科院分区：
文献类型：
--
作者：
M. Tsatsos;M. Edmonds;N. Parker
受最近实验的启发，我们从理论上研究了细长陷阱中原子凝聚态从二维到一维交叉的涡流动力学。我们探索了当接近一维极限时从涡旋动力学到暗孤子动力学的转变，并将这种转变映射为关键系统参数的函数。此外，我们通过维度交叉处陷阱随时间变形的滞后作用动态地探测这种转变。当在滞后期间探测孤子状态时，系统会损失大量角动量，但值得注意的是，涡旋可能会重新出现。
Motivated by recent experiments we study theoretically the dynamics of vortices in the crossover from two to one-dimension in atomic condensates in elongated traps. We explore the transition from the dynamics of a vortex to that of a dark soliton as the one-dimensional limit is approached, mapping this transition out as a function of the key system parameters. Moreover, we probe this transition dynamically through the hysteresis under time-dependent deformation of the trap at the dimensionality crossover. When the solitonic regime is probed during the hysteresis, significant angular momentum is lost from the system but, remarkably, the vortex can re-emerge.