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.
@article{arxiv.1103.2260,
title = {Coherence of Single Electron Sources from Mach-Zehnder Interferometry},
author = {Géraldine Haack and Michael Moskalets and Janine Splettstoesser and Markus Büttiker},
journal= {arXiv preprint arXiv:1103.2260},
year = {2011}
}