Single-particle dynamics of the Anderson model: a local moment approach

Abstract

A non-perturbative local moment approach to single-particle dynamics of the general asymmetric Anderson impurity model is developed. The approach encompasses all energy scales and interaction strengths. It captures thereby strong coupling Kondo behaviour, including the resultant universal scaling behaviour of the single-particle spectrum; as well as the mixed valent and essentially perturbative empty orbital regimes. The underlying approach is physically transparent and innately simple, and as such is capable of practical extension to lattice-based models within the framework of dynamical mean-field theory.

26 pages, 9 figures

References in corpus (4)

• Field-dependent dynamics of the Anderson impurity model
• On the scaling spectrum of the Anderson impurity model
• Magnetic properties of the Anderson model: a local moment approach
• Finite temperature dynamics of the Anderson model

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