Phase-dependent Kondo Resonance in a Quantum Dot Connected to a Mesoscopic Ring

Details Phase-dependent Kondo Resonance in a Quantum Dot Connected to a Mesoscopic Ring Phase-dependent Kondo Resonance in a Quantum Dot Connected to a Mesoscopic Ring

2001-03-02

arxiv.org/abs/cond-mat/0103045v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

Phase-sensitive transport through a quantum dot coupled to an Aharonov-Bohm ring is analyzed. In this geometry the spectral density of states is directly related to the conductance. It is shown that the Kondo resonance depends on the phase and on the total number of electrons (modulo 4) in the mesoscopic ring. The effect of the discrete level spacing in the ring and of the coupling to the electrical leads is discussed.

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