WIAS Preprint No. 1895, (2013)

A new model for quantum dot light emitting-absorbing devices


  • Neidhardt, Hagen
  • Wilhelm, Lukas
  • Zagrebnov, Valentin A.

2010 Mathematics Subject Classification

  • 47A40 47A55 81Q37 81V80


  • Landauer-Büttiker formula, Jaynes-Cummings model, coupling to leads, light emission, solar cells


Motivated by the Jaynes-Cummings (JC) model, we consider here a quantum dot coupled simultaneously to a reservoir of photons and to two electric leads (free-fermion reservoirs). This Jaynes-Cummings-Leads (JCL) model makes possible that the fermion current through the dot creates a photon flux, which describes a light-emitting device. The same model is also describe a transformation of the photon flux into current of fermions, i.e. a quantum dot light-absorbing device. The key tool to obtain these results is an abstract Landauer-Büttiker formula.

Appeared in

  • J. Mathematical Physics Analysis Geometry (MAG), 10 (2014) pp. 1--37.

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