Orbital Kondo effect in double quantum dots

Details Orbital Kondo effect in double quantum dots Orbital Kondo effect in double quantum dots

2010-08-17

arxiv.org/abs/1008.2902v2

Phys. Rev. B 82, 125323 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages, 9 figures, revised

Scientific paper

10.1103/PhysRevB.82.125323

Orbital Kondo effect in a system of two single-level quantum dots attached to external electron reservoirs is considered theoretically. The dots are coupled via direct hoping term and Coulomb interaction. The Kondo temperature is evaluated from the scaling approach and slave boson technique. The later method is also used to calculate linear conductance of the system. Nonlinear conductance, in turn, is calculated in terms of the nonequilibrium Green function formalism.

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