Time-dependent current-density-functional theory of spin-charge separation and spin drag in one-dimensional ultracold Fermi gases.
Time-dependent current-density-functional theory of spin-charge separation and spin drag in one-dimensional ultracold Fermi gases.
复制标题
DOI：
10.1103/physrevlett.101.206402
复制
发表时间：
2008-04
影响因子：
8.6
通讯作者：
Xianlong Gao;M. Polini;Diego Rainis;M. P. Tosi;G. Vignale
中科院分区：
文献类型：
--
作者：
Xianlong Gao;M. Polini;Diego Rainis;M. P. Tosi;G. Vignale
出于对低维量子多体系统非平衡动力学的极大兴趣，我们对淬火后一维超冷费米气体中的电荷和自旋动力学进行了完全微观的理论和数值研究。我们的方法基于时间相关的电流密度泛函理论，其适用范围远远超出了线性响应范围，并产生自旋电荷分离和自旋阻力引起的自旋包展宽。
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.