Equilibrium and non-equilibrium dynamics of quasiparticles for locally correlated systems in a magnetic field

被引：5

作者：

Bauer, J. ^{[1
]}

Hewson, A. C.

Oguri, A.

机构：

[1] Univ London Imperial Coll Sci & Technol, Dept Math, London SW7 2AZ, England

[2] Osaka City Univ, Dept Mat Sci, Sumiyoshi Ku, Osaka 5588585, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 310卷 / 02期

基金：

英国工程与自然科学研究理事会; 日本学术振兴会;

关键词：

strongly correlated electrons; renormalised perturbation theory; Kondo effect in magnetic field; quantum dots;

D O I：

10.1016/j.jmmm.2006.10.729

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present renormalised perturbation theory calculations for the description of the dynamics of quasiparticles in the Anderson impurity model in magnetic field. Our calculations are compared with NRG spectra and good agreement is found for magnetic fields of the order of the Kondo temperature, when an appropriate perturbation series is chosen. We point out how this approach can be generalised to the non-equilibrium situation, where it is relevant for the description of quantum dots. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1133 / 1135

页数：3

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