The Leggett-Garg inequality in electron interferometers
Mesoscale and Nanoscale Physics
2013-03-19 v2 Quantum Physics
Abstract
We consider the violation of the Leggett-Garg inequality in electronic Mach-Zehnder inteferometers. This set-up has two distinct advantages over earlier quantum-transport proposals: firstly, the required correlation functions can be obtained without time-resolved measurements. Secondly, the geometry of an interferometer allows one to construct the correlation functions from ideal negative measurements, which addresses the non-invasiveness requirement of the Leggett-Garg inequality. We discuss two concrete realisations of these ideas: the first in quantum Hall edge-channels, the second in a double quantum dot interferometer.
Keywords
Cite
@article{arxiv.1209.2977,
title = {The Leggett-Garg inequality in electron interferometers},
author = {Clive Emary and Neill Lambert and Franco Nori},
journal= {arXiv preprint arXiv:1209.2977},
year = {2013}
}
Comments
11 pages, 5 figures