Phase measurements using Two-Channel Fano Interference in a Semiconductor Quantum Dot

Details Phase measurements using Two-Channel Fano Interference in a Semiconductor Quantum Dot Phase measurements using Two-Channel Fano Interference in a Semiconductor Quantum Dot

2003-07-23

arxiv.org/abs/cond-mat/0307590v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

We investigate a lateral semiconductor quantum dot with a large number of electrons in the semi-open Fano regime. In transport measurements we observe three stable series of Fano resonances with similar lineshapes. We present a simple model explaining the temperature and V_{SD} dependence of the resonances. The Fano regime allows to investigate phase and coherence of the electronic wave function and astonishingly, we find no signs of decoherence in our system.

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