Renormalization-group calculation of dynamical properties for impurity models
Nenhuma Miniatura disponível
Data
1991-05-01
Autores
Oliveira, L. N.
Líbero, V. L.
Frota, H. O.
Yoshida, M. [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Resumo
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.
Descrição
Palavras-chave
Mathematical Techniques--Numerical Analysis, Thermodynamic Properties, Anderson Model, Impurity Models, Metals and Alloys
Como citar
Physica B: Physics of Condensed Matter, v. 171, n. 1-4, p. 61-68, 1991.