Abstract
We present exact results on the nonequilibrium current fluctuations for 2 quantum dots in series throughout a crossover from non-Fermi liquid to Fermi liquid behavior described by the 2 impurity Kondo model. The result corresponds to resonant tunneling of carriers of charge 2e for a critical interimpurity coupling. At low energy scales, the result can be understood from a Fermi liquid approach that we develop and use to also study nonequilibrium transport in an alternative double dot realization of the 2 impurity Kondo model under current experimental study.
Original language | English |
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Article number | 087204 |
Journal | Physical Review Letters |
Volume | 103 |
Issue number | 8 |
DOIs | |
State | Published - 19 Aug 2009 |
Externally published | Yes |