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

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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, antiresonance 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.
Publisher
AMERICAN PHYSICAL SOC
Issue Date
2001-03
Language
English
Article Type
Article
Keywords

SINGLE-ELECTRON TRANSISTOR; ZERO-BIAS ANOMALIES; MESOSCOPIC RING; ANDREEV TRANSPORT; ANDERSON IMPURITY; AHARONOV; MODEL; EQUILIBRIUM; CURRENTS

Citation

PHYSICAL REVIEW B, v.63, no.11, pp.113304 - 113304

ISSN
1098-0121
URI
http://hdl.handle.net/10203/13422
Appears in Collection
RIMS Journal Papers
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