SU(2) and SU(4) Kondo effect in double quantum dots
Mesoscale and Nanoscale Physics
2007-12-20 v1 Strongly Correlated Electrons
Abstract
We investigate serial double quantum dot systems with on-site and inter-site interaction by means of Sch\"onhammer-Gunnarsson projection-operator method. The ground state is established by the competition between extended Kondo phases and localized singlet phases in spi$ degrees of freedom. We present and discuss different phases, as discerned by characteristic correlation functions. We discuss also how different phases would be seen in linear transport measurements.
Keywords
Cite
@article{arxiv.0704.1979,
title = {SU(2) and SU(4) Kondo effect in double quantum dots},
author = {Jernej Mravlje and Anton Ramsak and Tomaz Rejec},
journal= {arXiv preprint arXiv:0704.1979},
year = {2007}
}
Comments
5 pages, 2 figures, presented on "XI Training Course in the Physics of Strongly Correlated Systems", Vietri sul Mare, Salerno, Italy