Ferrofluidity in a two-component dipolar Bose-Einstein condensate.
Ferrofluidity in a two-component dipolar Bose-Einstein condensate.
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DOI：
10.1103/physrevlett.102.230403
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发表时间：
2008-12
影响因子：
8.6
通讯作者：
H. Saito;Y. Kawaguchi;Masahito Ueda
中科院分区：
文献类型：
--
作者：
H. Saito;Y. Kawaguchi;Masahito Ueda
结果表明，在具有偶极-偶极相互作用的双组分玻色-爱因斯坦凝聚体（BEC）中，界面自发地形成类似于铁磁流体中形成的图案。数值模拟表明，historonal，histothine，孤立子结构，和滞后行为。超流被发现在静止时围绕六边形图案循环，提供了超固体的证据。系统维持持续流，涡线被六边形图案钉扎。这些现象可以使用52 Cr BEC来实现。
It is shown that the interface in a two-component Bose-Einstein condensate (BEC) with a dipole-dipole interaction spontaneously develops patterns similar to those formed in a ferrofluid. Hexagonal, labyrinthine, solitonlike structures, and hysteretic behavior are numerically demonstrated. Superflow is found to circulate around the hexagonal pattern at rest, offering evidence of supersolidity. The system sustains persistent current with a vortex line pinned by the hexagonal pattern. These phenomena may be realized using a 52Cr BEC.