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math-ph2013
A new model for quantum dot light emitting-absorbing devices
Hagen Neidhardt, Lukas Wilhelm, Valentin Zagrebnov
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). Th…
math-ph2012
Cayley transform applied to non-interacting quantum transport
Horia D. Cornean, Hagen Neidhardt, Lukas Wilhelm +1
We extend the Landauer-Büttiker formalism in order to accommodate both unitary and self-adjoint operators which are not bounded from below. We also prove that the pure point and si…