Dephasing due to a fluctuating fractional quantum Hall edge current
Mesoscale and Nanoscale Physics
2007-05-23 v1
Abstract
The dephasing rate of an electron level in a quantum dot, placed next to a fluctuating edge current in the fractional quantum Hall effect, is considered. Using perturbation theory, we first show that this rate has an anomalous dependence on the bias voltage applied to the neighboring quantum point contact, because of the Luttinger liquid physics which describes the fractional Hall fluid. Next, we describe exactly the weak to strong backscattering crossover using the Bethe-Ansatz solution.
Cite
@article{arxiv.0704.1443,
title = {Dephasing due to a fluctuating fractional quantum Hall edge current},
author = {T. K. T Nguyen and A. Crepieux and T. Jonckheere and A. V. Nguyen and Y. Levinson and T. Martin},
journal= {arXiv preprint arXiv:0704.1443},
year = {2007}
}
Comments
Proceedings of the 6th Rencontres du Vietnam (2006)