Now showing items 1-4 of 4

    • Asymptotic dynamics of quantum discord in open quantum systems 

      Berrada, K; Eleuch, Hichem; Hassouni, Y (IOP Publishing, 2011)
      It is well known that quantum entanglement makes possible certain tasks in quantum information theory. However, there are also quantum tasks that display the quantum advantage without entanglement. Distinguishing classical ...
    • Clustering of exceptional points and dynamical phase transitions 

      Eleuch, Hichem; Rotter, Ingrid (American Physical Society, 2016-04-25)
      The eigenvalues of a non-Hermitian Hamilton operator are complex and provide not only the energies but also the lifetimes of the states of the system. They show a nonanalytical behavior at singular (exceptional) points (EPs). ...
    • Probing Anderson localization using the dynamics of a qubit 

      Eleuch, Hichem; Hilke, Michael; MacKenzie, Richard (American Physical Society, 2017-06-19)
      Anderson localization is a consequence of coherent interference of multiple scattering events in the presence of disorder, which leads to an exponential suppression of the transmission. The decay of the transmission ...
    • Width bifurcation and dynamical phase transitions in open quantum systems 

      Eleuch, Hichem; Rotter, Ingrid (American Physical Society, 2013-05-28)
      The states of an open quantum system are coupled via the environment of scattering wave functions. The complex coupling coefficients ω between system and environment arise from the principal value integral and the residuum. ...