Collective excitations in one-dimensional ultracold Fermi gases: a comparative study
Strongly Correlated Electrons
2008-11-11 v1
Abstract
Time-dependent density-functional theory (TDDFT) is a powerful tool to study the non-equilibrium dynamics of inhomogeneous interacting many-body systems. Here we show that the simple adiabatic local-spin-density approximation for the time-dependent exchange-correlation potential is surprisingly accurate in describing collective density and spin dynamics in strongly correlated one-dimensional ultracold Fermi gases. Our conclusions are based on extensive comparisons between our TDDFT results and accurate results based on the adaptive time-dependent density-matrix renormalization-group method.
Cite
@article{arxiv.0805.4743,
title = {Collective excitations in one-dimensional ultracold Fermi gases: a comparative study},
author = {Wei Li and Gao Xianlong and Corinna Kollath and Marco Polini},
journal= {arXiv preprint arXiv:0805.4743},
year = {2008}
}
Comments
11 pages, 6 figures, submitted