Friedel oscillations in one-dimensional metals: from Luttinger's theorem to the Luttinger liquid
arXiv:0710.0358 · doi:10.1016/j.jmmm.2008.02.077
Abstract
Charge density and magnetization density profiles of one-dimensional metals are investigated by two complementary many-body methods: numerically exact (Lanczos) diagonalization, and the Bethe-Ansatz local-density approximation with and without a simple self-interaction correction. Depending on the magnetization of the system, local approximations reproduce different Fourier components of the exact Friedel oscillations.
arXiv comment3 pages, 3 figures, Manuscript accepted by Journal of Magnetism and Magnetic Materials, special issue for LAWMMM 2007 conference
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- Impurities and other defects in correlated lattice electrons: Friedel oscillations and interference patterns