Perturbative treatment of the multichannel interacting resonant-level model in steady-state nonequilibrium

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Abstract

We consider the steady-state nonequilibrium physics of the multichannel interacting resonant-level model in the weak coupling regime. By using the scattering state method we show in agreement with the rate equations that the negative differential conductance at large enough voltages is due to the renormalization of the hopping amplitude and neither the orthogonality catastrophe nor the voltage dependence of the density of states at the resonant-level. The moderate role of the voltage dependence of the density of states on the dot is also discussed.

Original languageEnglish
Article number153303
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume81
Issue number15
DOIs
Publication statusPublished - Apr 13 2010

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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