Перегляд за автором "Neidhardt, H."

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  • A New Model of Quantum Dot Light Emitting-Absorbing Devices 
    Neidhardt, H.; Wilhelm, L.; Zagrebnov, V.A. (Журнал математической физики, анализа, геометрии, 2014)
    Motivated by the Jaynes–Cummings (JC) model, we consider here a quantum dot coupled simultaneously to a reservoir of photons and two electric leads (free-fermion reservoirs). This new Jaynes–Cummings-leads (JCL)-type model ...
  • New aspects of Krein`s extension theory 
    Brasche, J.F.; Koshmanenko, V.; Neidhardt, H. (Український математичний журнал, 1994)
    The extension problem for closed symmetric operators with a gap is studied. A new kind of parametrization of extensions (the so-called Krein model) is developed. The notion of a singular operator plays the key role in our ...