Electronic interferometer capacitively coupled to a quantum dot
Mesoscale and Nanoscale Physics
2009-10-30 v2
Abstract
We theoretically study electron interference in a ballistic electronic interferometer capacitively coupled to a quantum dot. The visibility of the interference is reduced when the dot has degenerate ground states with different excess charges. The degree of the reduction depends on system parameters such as the strength of the capacitive coupling, and the dependence is analyzed in the regime where the dwell time of electrons in the dot is much longer than the electron flight time through the interferometry region coupled to the dot. The result is consistent with recent experimental data.
Cite
@article{arxiv.0901.2626,
title = {Electronic interferometer capacitively coupled to a quantum dot},
author = {Seok-Chan Youn and Hyun-Woo Lee and H. -S. Sim},
journal= {arXiv preprint arXiv:0901.2626},
year = {2009}
}
Comments
4 pages, 2 figures