Dynamical symmetries in Kondo tunneling through complex quantum dots |
| |
Authors: | Kuzmenko T Kikoin K Avishai Y |
| |
Affiliation: | Department of Physics, Ben-Gurion University, Beer-Sheva, Israel. |
| |
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). |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|