旋转条件下三组分玻色-爱因斯坦凝聚体中的涡旋晶格：模拟彩色超导体中的彩色涡旋晶格
Vortex lattices in three-component Bose-Einstein condensates under rotation: simulating colorful vortex lattices in a color superconductor
摘要：
我们研究了旋转条件下三分量玻色-爱因斯坦凝聚体中的涡格，其中存在三种分数涡缠绕其中一个分量。与两组元BEC中正方形和三角形晶格的相位依赖于组元间耦合常数和转速的情况不同，我们发现了三角形有序的“彩色”涡旋晶格，其中三种分数涡旋有序地放置而没有缺陷，在所有的参数区域中，组元间耦合g'小于组元内耦合g。另一方面，当g > g'时，我们发现相分离;在存在一个分量的区域中，其他两个分量必须消失，在那里我们发现这两个分量中的鬼涡，它们的位置是分离的。在边界g = g '处，偶然的U（3）对称性存在，在这种情况下，不同分量的两个涡在某些区域相互靠近。
英文摘要：
We study vortex lattices in three-component BECs under rotation, where three kinds of fractional vortices winding one of three components are present. Unlike the cases of two-component BECs where the phases of square and triangular lattices are present depending on the intercomponent coupling constant and the rotation speed, we find triangular ordered "colorful" vortex lattices where three kind of fractional vortices are placed in order without defects, in all parameter region where the inter-component coupling g' is less than the intra-component coupling g. When g > g' on the other hand, we find the phase separation; In a region where one component is present, the other two components must vanish, where we find ghost vortices in these two components whose positions are separated. In the boundary g = g', the accidental U(3) symmetry is present, in which case two vortices in different components are close to each other in some regions.
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