Transport in multilevel quantum dots: from the Kondo effect to the Coulomb blockade regime

Details Transport in multilevel quantum dots: from the Kondo effect to the Coulomb blockade regime Transport in multilevel quantum dots: from the Kondo effect to the Coulomb blockade regime

1999-01-15

arxiv.org/abs/cond-mat/9901144v1

Phys. Rev. Lett. 83, 600 (1999)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, revtex, submitted to PRL

Scientific paper

10.1103/PhysRevLett.83.600

A new theoretical method is introduced to study coherent electron transport in an interacting multilevel quantum dot. The method yields the correct behavior both in the limit of weak and strong coupling to the leads, giving a unified description of Coulomb blockade and the Kondo effect. Results for the density of states and the temperature dependent conductance for a two- level dot are presented. The relevance of these results in connection to recent experiments on the Kondo effect in semiconducting quantum dots is discussed.

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