The connection between noise and quantum correlations in a double quantum dot
Mesoscale and Nanoscale Physics
2009-11-13 v2
Abstract
We investigate the current and noise characteristics of a double quantum dot system. The strong correlations induced by the Coulomb interaction create entangled two-electron states and lead to signatures in the transport properties. We show that the interaction parameter phi, which measures the admixture of the double-occupancy contribution to the singlet state and thus the degree of entanglement, can be directly accessed through the Fano factor of super-Poissonian shot noise.
Cite
@article{arxiv.0709.4317,
title = {The connection between noise and quantum correlations in a double quantum dot},
author = {F. Bodoky and W. Belzig and C. Bruder},
journal= {arXiv preprint arXiv:0709.4317},
year = {2009}
}
Comments
5 pages, major revision, to be published in Phys. Rev. B