Now showing items 1-5 of 5

    • Dc-switchable and single-nanocrystal-addressable coherent population transfer 

      Gunceler, D.; Bulutay, C. (2010)
      Achieving coherent population transfer in the solid-state is challenging compared to atomic systems due to closely spaced electronic states and fast decoherence. Here, within an atomistic pseudopotential theory, we offer ...
    • Decoherence in open quantum systems : a realistic approach 

      Savran, Kerim (Bilkent University, 2006)
      Decoherence mechanisms of opcu quantum systems ın intcraction with an enviromental bath is investigated using the master equation formalism. Widely used two-level approximation is questioned.
    • Non-Markovian decoherence: A critique of the two-level approximation 

      Hakioǧlu T.; Savran, K.; Sevinçli, H.; Meşe, E. (Elsevier B.V., 2006)
      The environmental decoherence in multilevelled systems in the context of two-level approximation is examined. It is found that the environmental temperature plays a minor role in the magnitudes of the decoherence rates ...
    • The off-resonant aspects of decoherence and a critique of the two-level approximation 

      Savran, K.; Hakioǧlu T.; Mese, E.; Sevinçli, H. (IOP Institute of Physics, 2006)
      Conditions in favour of a realistic multilevelled description of a decohering quantum system are examined. In this regard the first crucial observation is that the thermal effects, contrary to the conventional belief, play ...
    • Robust entanglement in atomic systems 

      Çakır, Özgür (Bilkent University, 2005)
      Various models for generation of robust atomic entangled states and their implementation with current accessible technologies are proposed and worked out. Deterministic creation of long living Bell states with respect ...