Non-equilibrium 2-Channel Kondo model for quantum dots
Mesoscale and Nanoscale Physics
2007-05-23 v2 Strongly Correlated Electrons
Abstract
We find that, under certain condition, a quantum dot with odd number of electron and coupled to two leads can be described by a non-equilibrium 2-channel Kondo model, when the two leads has a large voltage bias between them. The model is exactly soluble and can be mapped into a free fermion system, even in the presence of external magnetic field and other relevant perturbations. All (dynamical) correlation functions can be calculated. The fixed point of the 2-channel Kondo model is a non-equilibrium fixed point and is different from the usual 1-channel and 2-channel Kondo fixed point.
Cite
@article{arxiv.cond-mat/9812431,
title = {Non-equilibrium 2-Channel Kondo model for quantum dots},
author = {Xiao-Gang Wen},
journal= {arXiv preprint arXiv:cond-mat/9812431},
year = {2007}
}
Comments
4 pages, 1 fig, a new reference is added