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arXiv · 0912.0245

Universal scaling in transport out of equilibrium through a single quantum dot using the noncrossing approximation

P. Roura-Bas
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Abstract

The universal scaling behavior is studied for nonequilibrium transport through a quantum dot. To describe the dot we use the standard Anderson impurity model and use the non-equilibrium non-crossing approximation in the limit of infinite Coulomb repulsion. After solving de hamiltonian, we calculate the conductance through the system as a function of temperature $T$ and bias voltage $V$ in the Kondo and in the mixed valent regime. We obtain a good scaling function in both regimes. In particular, in the mixed valent regime, we find excellent agreement with recent experiments and previous theoretical works.

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P. Roura-Bas. 2009-12-01. Universal scaling in transport out of equilibrium through a single quantum dot using the noncrossing approximation. https://doi.org/10.1103/physrevb.81.155327

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