Component separation of two-component fermion clouds in a spin-dependent external potential by spin-density-functional theory
Component separation of two-component fermion clouds in a spin-dependent external potential by spin-density-functional theory
复制标题
自旋密度泛函理论在自旋相关外部势中双组分费米子云的组分分离
DOI：
10.1103/physreva.87.023628
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发表时间：
2013-02
影响因子：
2.9
通讯作者：
Gao Xianlong
中科院分区：
文献类型：
--
作者：
Gao Xianlong
本文研究了自旋相关的外势场中一维二分量费米子云的分量分离。用自旋相关密度泛函理论研究了体系的密度分布和态图。自旋相关的谐振子约束和组分间强排斥相互作用的相互作用导致了自旋向上和自旋向下的原子之间的组分分离。我们发现存在一个阈值排斥相互作用强度以上的组件分离演变。用数字绘制出不同的状态图，从中区分出两个区域，即，在阱中心具有上自旋和下自旋混合物的相混合区和仅在中心保留上自旋原子的相分离区。
We investigate the component separation in one-dimensional two-component fermion clouds in a spin-dependent external potential. The density distributions and the state diagram are studied by means of spin-dependent density-functional theory. The component separation between spin-up and spin-down atoms is induced by the interplay of the spin-dependent harmonic confinement and the strong repulsive interaction between the inter-components. We find the existence of a threshold repulsive interaction strength above which the component separation evolves. Different state diagrams are mapped out numerically, from which two regions are distinguished, i.e., the phase-mixed region with both spin-up and spin-down mixtures in the center of the trap and the phase-separated region with only spin-up atoms remaining in the center.
DOI：
10.1017/cbo9780511619915.012
发表时间：
2005
期刊：
--
影响因子：
--
作者：
G. Giuliani;G. Vignale
通讯作者：
G. Giuliani;G. Vignale