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Kondo effect in complex mesoscopic structures

O. Entin-Wohlman·A. Aharony·Y. Meir
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Abstract

We study the Kondo effect of a quantum dot placed in a complex mesoscopic structure. Assuming that electronic interactions are taking place solely on the dot, and focusing on the infinite Hubbard interaction limit, we use a decoupling scheme to obtain an explicit analytic approximate expression for the dot Green function, which fulfills certain Fermi-liquid relations at zero temperature. The details of the complex structure enter into this expression only via the self-energy for the non-interacting case. The effectiveness of the expression is demonstrated for the single impurity Anderson model and for the T-shaped network.

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O. Entin-Wohlman, A. Aharony, Y. Meir. 2004-11-20. Kondo effect in complex mesoscopic structures. https://doi.org/10.1103/physrevb.71.035333

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