Domain-wall solutions of spinor Bose-Einstein condensates in an optical lattice
Domain-wall solutions of spinor Bose-Einstein condensates in an optical lattice
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DOI：
10.1103/physreva.81.015602
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发表时间：
2010-01
影响因子：
2.9
通讯作者：
Zaidong Li;Qiu-Yan Li;P. He;J. Liang;Wuyang Liu;G. Fu
中科院分区：
文献类型：
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作者：
Zaidong Li;Qiu-Yan Li;P. He;J. Liang;Wuyang Liu;G. Fu
研究了光晶格中旋量玻色-爱因斯坦凝聚的静态和动态畴壁解。解析地构造了单、双畴壁解。结果表明，磁场和光致偶极相互作用对不同畴壁的形成以及畴壁宽度和畴壁速度的调节都起着重要的作用。此外，这些相互作用可以驱动玻色铁磁体系统中畴壁的运动，类似于外部磁场或自旋极化电流在费米子铁磁体中驱动畴壁的方式。
We studied the static and dynamic domain-wall solutions of spinor Bose-Einstein condensates trapped in an optical lattice. The single and double domain-wall solutions are constructed analytically. Our results show that the magnetic field and light-induced dipolar interactions play important roles for both the formation of different domain walls and the adjusting of domain-wall width and velocity. Moreover, these interactions can drive the motion of the domain wall in Bose ferromagnet systems similar to the way the external magnetic field or the spin-polarized current drives it in fermion ferromagnets.