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Nonequilibrium theory for a quantum dot with arbitrary on-site correlation strength coupled to leads
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
2005 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 72, no 7, 075314- p.Article in journal (Refereed) Published
Abstract [en]

An analytical expression for the current through a single level quantum dot for arbitrary strength of the on-site electron-electron interaction is derived beyond mean-field theory. By describing the localized states in terms of many-body operators, the employed diagrammatic technique for strong coupling between localized and delocalized states enables inclusion of electron correlation effects into the description of the local dynamics, which provides transport properties that are consistent with recent experimental data.

Place, publisher, year, edition, pages
2005. Vol. 72, no 7, 075314- p.
National Category
Condensed Matter Physics
URN: urn:nbn:se:kth:diva-38171DOI: 10.1103/PhysRevB.72.075314ISI: 000231564500101ScopusID: 2-s2.0-33644949748OAI: diva2:436169
QC 20110822Available from: 2011-08-22 Created: 2011-08-22 Last updated: 2011-08-22Bibliographically approved

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