Phys. Rev. Lett. 101, 206402 (2008) [4 pages]Time-Dependent Current-Density-Functional Theory of Spin-Charge Separation and Spin Drag in One-Dimensional Ultracold Fermi GasesReceived 9 April 2008; published 13 November 2008 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. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.206402
DOI:
10.1103/PhysRevLett.101.206402
PACS:
71.15.Mb, 03.75.Ss, 71.10.Pm
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