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Phase measurement of photon-assisted tunneling through a quantum dot

A. P. Jauho·Ned S. Wingreen
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Abstract

Recent double-slit interference experiments have demonstrated the possibility of probing the phase of the complex transmission coefficient of a quantum dot via the Aharonov-Bohm effect. We propose an extension of these experiments: an ac voltage imposed on the side gate with the concomitant photonic sidebands leads to additional structure both in the amplitude and in the phase of the Aharonov-Bohm signal. Observation of these effects would be a definitive proof of coherent absorption and reemission of photons from the ac source.

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A. P. Jauho, Ned S. Wingreen. 1997-06-23. Phase measurement of photon-assisted tunneling through a quantum dot. https://doi.org/10.1103/physrevb.58.9619

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