Controlled Dephasing of a Quantum Dot in the Kondo Regime

Details Controlled Dephasing of a Quantum Dot in the Kondo Regime Controlled Dephasing of a Quantum Dot in the Kondo Regime

2001-07-30

arxiv.org/abs/cond-mat/0107595v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, changes in the body of the paper, 1 figure included

Scientific paper

In this work we analyze how coherent transport through a Quantum Dot (QD) in the Kondo regime is affected by the weak capacitive interaction with a nearby biased Quantum Point Contact (QPC). We find that when the QD-QPC interaction is weak the width of the Kondo resonance is hardly affected by it. However, the spectral weight of the Kondo peak is reduced leading to an observable suppression of the conductance and the elastic transmission probability through the QD.

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