Anomalous Kondo effect of indirectly coupled double quantum dots

2003/07/11 by Qing-feng Sun, Hong Guo, Sun, Qing-feng +3
Physics and Astronomy · #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #cond-mat.mes-hall

paper · pdf · doi:10.48550/arxiv.cond-mat/0307286

4 pages 3 figures

arxiv created 2003/11/04 · arxiv updated 2009/12/01

Abstract

We report theoretical investigations of indirectly coupled double quantum dots (QD) side connected to an one-dimensional quantum wire. Due to quantum interference controlled by the parameter k_F L, with k_F the Fermi wave number of the wire and L the distance between the two QDs, distinctly different Kondo resonances are predicted depending on the range of k_F L. A true bound Kondo states is found while an anomalous Kondo resonance gives rise to both reduction and enhancement of conductance.

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