Ferrofluidity in a Two-Component Dipolar Bose-Einstein Condensate

被引：74
|
作者：
Saito, Hiroki [1 ]
Kawaguchi, Yuki [2 ]
Ueda, Masahito [2 ,3 ]
机构：
[1] Univ Electrocommun, Dept Appl Phys & Chem, Tokyo 1828585, Japan
[2] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
[3] JST, ERATO Macroscop Quantum Project, Tokyo 1138656, Japan
来源：
PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 23期
关键词：
FERROMAGNETIC FLUID; WAVE-NUMBER; CRYSTALS; FIELD;
D O I：
10.1103/PhysRevLett.102.230403
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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 (52)Cr BEC.
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页数：4
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