Time-Dependent Current-Density-Functional Theory of Spin-Charge Separation and Spin Drag in One-Dimensional Ultracold Fermi Gases

被引：14
|
作者：
Gao Xianlong [1 ]
Polini, Marco [2 ,3 ]
Rainis, Diego [2 ,3 ]
Tosi, M. P. [2 ,3 ]
Vignale, G. [4 ]
机构：
[1] Zhejiang Normal Univ, Dept Phys, Jinhua 321004, Zhejiang, Peoples R China
[2] NEST CNR INFM, I-56126 Pisa, Italy
[3] Scuola Normale Super Pisa, I-56126 Pisa, Italy
[4] Univ Missouri, Dept Phys & Astron, Columbia, MO 65211 USA
来源：
PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 20期
关键词：
D O I：
10.1103/PhysRevLett.101.206402
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Motivated by the large interest in the nonequilibrium dynamics of low-dimensional quantum many-body systems, we present a fully microscopic theoretical and numerical study of the charge and spin dynamics in a one-dimensional ultracold Fermi gas following a quench. Our approach, which is based on time-dependent current-density-functional theory, is applicable well beyond the linear-response regime and produces both spin-charge separation and spin-drag-induced broadening of the spin packets.
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页数：4
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