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arXiv · 0806.3731

Twofold advance in the theoretical understanding of far-from-equilibrium properties of interacting nanostructures

E. Boulat·H. Saleur·P. Schmitteckert
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Abstract

We calculate the full $I-V$ characteristics at vanishing temperature in the self-dual interacting resonant level model in two ways. The first uses careful time dependent DMRG with large number of states per block and a representation of the reservoirs as leads subjected to a chemical potential. The other is based on integrability in the continuum limit, and generalizes early work of Fendley Ludwig Saleur on the boundary sine-Gordon model. The two approaches are in excellent agreement, and uncover among other things a power law decay of the current at large voltages when $U>0$.

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E. Boulat, H. Saleur, P. Schmitteckert. 2008-11-17. Twofold advance in the theoretical understanding of far-from-equilibrium properties of interacting nanostructures. https://doi.org/10.1103/physrevlett.101.140601

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