Dynamical symmetries in Kondo tunneling through complex quantum dots
Strongly Correlated Electrons
2009-11-07 v1
Abstract
Kondo tunneling reveals hidden SO(n) dynamical symmetries of evenly occupied quantum dots. As is exemplified for an experimentally realizable triple quantum dot in parallel geometry, the possible values n=3,4,5,7 can be easily tuned by gate voltages. Following construction of the corresponding o(n) algebras, scaling equations are derived and Kondo temperatures are calculated. The symmetry group for a magnetic field induced anisotropic Kondo tunneling is SU(2) or SO(4).
Cite
@article{arxiv.cond-mat/0206050,
title = {Dynamical symmetries in Kondo tunneling through complex quantum dots},
author = {Tetyana Kuzmenko and Konstantin Kikoin and Yshai Avishai},
journal= {arXiv preprint arXiv:cond-mat/0206050},
year = {2009}
}
Comments
4 two-column pages with 4 encapsuled figures