Nonequilibrium transport through a singlet-triplet Anderson impurity
arXiv:0904.3236
Abstract
We study the Anderson model in which a configuration with a doublet is hybridized with another with a singlet and a triplet. We calculate the conductance through the system as a function of temperature and bias voltage, near the quantum critical line for which the system is exactly solvable. The results explain recent transport measurements in a single-molecule quantum dot.
5 pages, 4 figures, some clarifications and references added. Accepted for publication in Phys. Rev. B