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arXiv · 1103.2260

Coherence of Single Electron Sources from Mach-Zehnder Interferometry

Géraldine Haack·Michael Moskalets·Janine Splettstoesser·Markus Büttiker
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Abstract

A new type of electron sources has emerged which permits to inject particles in a controllable manner, one at a time, into an electronic circuit. Such single electron sources make it possible to fully exploit the particles' quantum nature. We determine the single-particle coherence length from the decay of the Aharonov-Bohm oscillations as a function of the imbalance of a Mach-Zehnder interferometer connected to a single electron source. The single-particle coherence length is of particular importance as it is an intrinsic property of the source in contrast to the dephasing length.

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Géraldine Haack, Michael Moskalets, Janine Splettstoesser, Markus Büttiker. 2011-03-11. Coherence of Single Electron Sources from Mach-Zehnder Interferometry. https://doi.org/10.1103/physrevb.84.081303

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