Quantum Communication and Quantum Networking. First International Conference, QuantumComm 2009, Naples, Italy, October 26-30, 2009, Revised Selected Papers

Research Article

Entanglement Purification with Hybrid Systems

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  • @INPROCEEDINGS{10.1007/978-3-642-11731-2_23,
        author={S. Mancini and G. Morigi and S. Rebic and D. Vitali},
        title={Entanglement Purification with Hybrid Systems},
        proceedings={Quantum Communication and Quantum Networking. First International Conference, QuantumComm 2009, Naples, Italy, October 26-30, 2009, Revised Selected Papers},
        proceedings_a={QUANTUMCOMM},
        year={2012},
        month={10},
        keywords={Entanglement manipulation and characterization quantum description of light-matter interaction quantum state engineering and measurements},
        doi={10.1007/978-3-642-11731-2_23}
    }
    
  • S. Mancini
    G. Morigi
    S. Rebic
    D. Vitali
    Year: 2012
    Entanglement Purification with Hybrid Systems
    QUANTUMCOMM
    Springer
    DOI: 10.1007/978-3-642-11731-2_23
S. Mancini1, G. Morigi2, S. Rebic3, D. Vitali1
  • 1: University of Camerino
  • 2: Universitat Autònoma de Barcelona
  • 3: Macquarie University

Abstract

We propose a scheme for continuous variable entanglement purification using the interaction of two-mode squeezed beams with cold trapped atomic ensembles. In the limit of very large number of atoms, a collective atomic ensemble excitation becomes a continuous quantity. Measurement of populations in the two lower levels is of non-Gaussian nature that is necessary for the entanglement purification. We foresee the use of this scheme for implementation of a continuous variable quantum repeater.