State mapping and discontinuous entanglement transfer in a multipartite open system

Details State mapping and discontinuous entanglement transfer in a multipartite open system State mapping and discontinuous entanglement transfer in a multipartite open system

2009-04-28

arxiv.org/abs/0904.4317v2

Physics

Quantum Physics

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Scientific paper

We describe the transfer of quantum information and correlations from an entangled tripartite bosonic system to three separate qubits through their local environments also in the presence of various dissipative effects. Optimal state mapping and entanglement transfer are shown in the framework of optical cavity quantum electrodynamics involving qubit-like radiation states and two-level atoms via the mediation of cavity modes. For an input GHZ state mixed with white noise we show the occurrence of sudden death and birth of entanglement that is discontinuously exchanged among the tripartite subsystems.

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