Renormalization-group calculation of dynamical properties for impurity models
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Undergraduate course
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Elsevier B.V.
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Article
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Abstract
The numerical renormalization-group method was originally developed to calculate the thermodynamical properties of impurity Hamiltonians. A recently proposed generalization capable of computing dynamical properties is discussed. As illustrative applications, essentially exact results for the impurity specttral densities of the spin-degenerate Anderson model and of a model for electronic tunneling between two centers in a metal are presented. © 1991.
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Keywords
Mathematical Techniques--Numerical Analysis, Thermodynamic Properties, Anderson Model, Impurity Models, Metals and Alloys
Language
English
Citation
Physica B: Physics of Condensed Matter, v. 171, n. 1-4, p. 61-68, 1991.
