Spontaneous circulation in ground-state spinor dipolar Bose-Einstein condensates.
Spontaneous circulation in ground-state spinor dipolar Bose-Einstein condensates.
复制标题
DOI：
10.1103/physrevlett.97.130404
复制
发表时间：
2006-06
影响因子：
8.6
通讯作者：
Y. Kawaguchi;H. Saito;Masahito Ueda
中科院分区：
文献类型：
--
作者：
Y. Kawaguchi;H. Saito;Masahito Ueda
本文研究了具有磁偶极-偶极相互作用的自旋1铁磁玻色-爱因斯坦凝聚体。通过求解该系统的非局域Gross-Pitaevskii方程，我们发现了三个基态相。此外，我们发现，大量的轨道角动量伴随着手征对称性破缺自发出现在一定的参数制度。我们预言，通过改变原子数或陷阱频率，在自旋为1的87 Rb凝聚体中可以观察到所有这些相.
We report on a study of the spin-1 ferromagnetic Bose-Einstein condensate with magnetic dipole-dipole interactions. By solving the nonlocal Gross-Pitaevskii equations for this system, we find three ground-state phases. Moreover, we show that a substantial orbital angular momentum accompanied by chiral symmetry breaking emerges spontaneously in a certain parameter regime. We predict that all these phases can be observed in the spin-1 87Rb condensate by changing the number of atoms or the trap frequency.