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通过关于二维低密度费密系统准粒子寿命和二维巡游电子系的自旋涨落的计算,本文证明朗道费密液体理论适用于二维相互作用费密粒子系。It is shown that Landau's mean field theory of Fermi liquids is valid in two-dimensional case through evaluation of the quasiparticle life-time of a 2-D interacting Fermi systems at low density as well as the spin fluctuation of 2-D itinerant Fermi systems.
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