An efficient scheme for preparation of multipartite entanglement of atomic ensembles

  • Zhao F
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We propose an efficient scheme to prepare multipartite entanglement of atomic ensembles trapped in separate cavities. Our scheme has high fidelity even with realistic noise based on the repeat-until-success strategy. By employing the quantum memory of the atomic internal state, the scaling efficiency decreases only with the number of atomic ensembles by a slow polynomial law. Moreover, the atomic ensembles also can function as quantum repeaters, which enable our system to compatible with the current experimental technique for quantum communication using atomic ensembles. © 2010 Elsevier GmbH. All rights reserved.

Author-supplied keywords

  • Atomic ensembles
  • Cavity-QED
  • GHZ state
  • Polynomial law

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