The logarithmic discretization embedded cluster approximation

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This work proposes a new approach to study transport properties of highly correlated local structures. The method, dubbed the logarithmic discretization embedded cluster approximation (LDECA), consists of diagonalizing a finite cluster containing the many-body terms of the Hamiltonian and embedding...

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Detalles Bibliográficos
Autores principales: Anda, E.V., Chiappe, G., Büsser, C.A., Davidovich, M.A., Martins, G.B., Heidrich-Meisner, F., Dagotto, E.
Formato: JOUR
Materias:
Charge transport
Kondo effect
Nanostructures
Discretizations
Embedded clusters
Finite clusters
Highly-correlated
Local structure
Many-body
New approaches
Theoretical foundations
Magnetic materials
Transport properties
Electric resistance
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09214526_v404_n18_p2689_Anda
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:This work proposes a new approach to study transport properties of highly correlated local structures. The method, dubbed the logarithmic discretization embedded cluster approximation (LDECA), consists of diagonalizing a finite cluster containing the many-body terms of the Hamiltonian and embedding it into the rest of the system, combined with Wilson's idea of a logarithmic discretization of the representation of the band. A many-body formalism provides a solid theoretical foundation to the method. © 2009 Elsevier B.V. All rights reserved.

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