• Mar 06 2015

    Manuel Gessner University of Freiburg, Germany.


    Dear All,

    Please see below and attached invitation to a seminar.

    Title: Robust entanglement under multipartite collective dephasing


    Speaker: Manuel Gessner University of Freiburg, Germany.

    We derive an analytical description of the ensemble-average dynamics of non-interacting atomic qubits in a spatially uniform, fluctuating magnetic field. This process induces classical correlations among the atoms and describes one of the dominant error sources of trapped-ion experiments. We use the derived solution to specify field orientations that preserve any degree of atomic entanglement for all times, and to identify families of states with time-invariant entanglement for arbitrary field orientations. Our formalism applies to arbitrary spectral distributions of the fluctuations.

    Date: Friday, 6th March 2015

    Time: 12h15 - 13h15

    Venue: NITheP Seminar Room, H-Block, 3rd Floor

    Kind regards
    Neli

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