Full Counting Statistics of Electron Tunneling through Coherently Coupled Quantum Dots: Exchange Interaction Effect on Shot Noise
Abstract
We investigate the zero-frequency shot noise of electronic tunneling through a single quantum dot (SQD) and coherently coupled quantum dots (CQD) taking into account the Coulomb interaction. Within Hartree-Fock approximation, the analytical expressions of current and zero-frequency shot noise are self-consistently derived in the framework of full counting statistics for the both systems. We demonstrate that the correction term of zero-frequency shot noise induced by the intradot Coulomb interaction is almost negligible compared to the noninteracting shot noise in a SQD, while in a CQD the interplay of the interdot coherence fluctuations and strong interdot Coulomb interaction can induce a super-Poissonian noise even in the symmetric case.
Keywords
Cite
@article{arxiv.1412.3180,
title = {Full Counting Statistics of Electron Tunneling through Coherently Coupled Quantum Dots: Exchange Interaction Effect on Shot Noise},
author = {Bo Xiong and Guo-Hui Ding and Bing Dong},
journal= {arXiv preprint arXiv:1412.3180},
year = {2014}
}
Comments
17 pages, 6 figures