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arXiv · 0809.4133

Transmission phase of a quantum dot: Testing the role of population switching

Moshe Goldstein·Richard Berkovits·Yuval Gefen·Hans A. Weidenmueller
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Abstract

We propose a controlled experiment to clarify the physical mechanism causing phase lapses of the amplitude for electron transmission through nanoscale devices. Such lapses are generically observed in valleys between adjacent Coulomb--blockade peaks. The experiment involves two quantum dots embedded in the same arm of an Aharonov--Bohm interferometer. It offers a decisive test of "population switching", one of the leading contenders for an explanation of the phenomenon.

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Moshe Goldstein, Richard Berkovits, Yuval Gefen, Hans A. Weidenmueller. 2008-09-24. Transmission phase of a quantum dot: Testing the role of population switching. https://doi.org/10.1103/physrevb.79.125307

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