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Anti-Kondo resonance in transport through a quantum wire with a side-coupled quantum dot

Kicheon Kang·Sam Young Cho·Ju-Jin Kim·Sung-Chul Shin
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Abstract

An interacting quantum dot side-coupled to a perfect quantum wire is studied. Transport through the quantum wire is investigated by using an exact sum rule and the slave-boson mean field treatment. It is shown that the Kondo effect provides a suppression of the transmission due to the destructive interference of the ballistic channel and the Kondo channel. At finite temperatures, anti-resonance behavior is found as a function of the quantum dot level position, which is interpreted as a crossover from the high temperature Kondo phase to the low temperature charge fluctuation phase.

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Kicheon Kang, Sam Young Cho, Ju-Jin Kim, Sung-Chul Shin. 2000-09-15. Anti-Kondo resonance in transport through a quantum wire with a side-coupled quantum dot. https://doi.org/10.1103/physrevb.63.113304

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