Anomalous Transmission Phase of a Kondo-Correlated Quantum Dot

Details Anomalous Transmission Phase of a Kondo-Correlated Quantum Dot Anomalous Transmission Phase of a Kondo-Correlated Quantum Dot

2004-01-12

arxiv.org/abs/cond-mat/0401169v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 3 figures

Scientific paper

10.1103/PhysRevB.71.045330

We study phase evolution of transmission through a quantum dot with Kondo correlations. By considering a model that includes nonresonant transmission as well as the Anderson impurity, we explain unusually large phase evolution of about $\pi$ in the Kondo valley observed in recent experiments. We argue that this anomalous phase evolution is a universal property that can be found in the high-temperature Kondo phase in the presence of the time-reversal symmetry.

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