Current correlations of an on-demand electron source as an evidence of single particle emission
Mesoscale and Nanoscale Physics
2015-05-18 v2
Abstract
In analogy with quantum optics, short time correlations of the current fluctuations are used to characterize an on-demand electron source consisting of a quantum dot connected to a conductor via a tunable tunnel barrier. We observe a new fundamental noise for electrons associated with the quantum fluctuations of the electron emission time, which we call quantum jitter. In optimum operating conditions of the source, the noise reduces to the quantum jitter limit, which demonstrates single particle emission. Combined with the coherent manipulations of single electrons in a quantum conductor, this electron quantum optics experiment opens the way to explore new problems including quantum statistics and interactions at the single electron level.
Keywords
Cite
@article{arxiv.1004.1985,
title = {Current correlations of an on-demand electron source as an evidence of single particle emission},
author = {A. Mahé and F. D. Parmentier and E. Bocquillon and J. -M. Berroir and D. C. Glattli and T. Kontos and B. Plaçais and G. Fève and A. Cavanna and Y. Jin},
journal= {arXiv preprint arXiv:1004.1985},
year = {2015}
}