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arXiv · 0804.1514

Time-dependent current-density-functional theory of spin-charge separation and spin drag in one-dimensional ultracold Fermi gases

Gao Xianlong·Marco Polini·Diego Rainis·M. P. Tosi·G. Vignale
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Abstract

Motivated by the large interest in the non-equilibrium 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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Gao Xianlong, Marco Polini, Diego Rainis, M. P. Tosi, G. Vignale. 2008-04-09. Time-dependent current-density-functional theory of spin-charge separation and spin drag in one-dimensional ultracold Fermi gases. https://doi.org/10.1103/physrevlett.101.206402

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