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arXiv · 0903.4940

Nonequilibrium charge transport in an interacting open system: two-particle resonance and current asymmetry

Dibyendu Roy·Abhiram Soori·Diptiman Sen·Abhishek Dhar
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Abstract

We use Lippman-Schwinger scattering theory to study nonequilibrium electron transport through an interacting open quantum dot. The two-particle current is evaluated exactly while we use perturbation theory to calculate the current when the leads are Fermi liquids at different chemical potentials. We find an interesting two-particle resonance induced by the interaction and obtain criteria to observe it when a small bias is applied across the dot. Finally, for a system without spatial inversion symmetry we find that the two-particle current is quite different depending on whether the electrons are incident from the left lead or the right lead.

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Dibyendu Roy, Abhiram Soori, Diptiman Sen, Abhishek Dhar. 2009-03-28. Nonequilibrium charge transport in an interacting open system: two-particle resonance and current asymmetry. https://doi.org/10.1103/physrevb.80.075302

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