The logarithmic discretization embedded cluster approximation

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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Veröffentlicht in:	Physica. B, Condensed matter Condensed matter, 2009-10, Vol.404 (18), p.2689-2693
Hauptverfasser:	Anda, E.V., Chiappe, G., Büsser, C.A., Davidovich, M.A., Martins, G.B., Heidrich-Meisner, F., Dagotto, E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Charge transport Condensed matter: electronic structure, electrical, magnetic, and optical properties Electronic transport in condensed matter Exact sciences and technology General formulation of transport theory Kondo effect Nanostructures Physics Theory of electronic transport scattering mechanisms
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Beschreibung
Zusammenfassung:	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.
ISSN:	0921-4526 1873-2135
DOI:	10.1016/j.physb.2009.06.068