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Multi-party multi-level quantum key distribution protocol based on entanglement swapping

Yang Yu-Guang Wen Qiao-Yan Zhu Fu-Chen

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Multi-party multi-level quantum key distribution protocol based on entanglement swapping

Yang Yu-Guang, Wen Qiao-Yan, Zhu Fu-Chen
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  • A multi-party multi-level quantum key distribution protocol based on entanglement swapping is proposed. A perfect complete orthonormal basis of the bi-party three-level systems is first constructed. By using this basis and swapping the entanglement, bi-party quantum key distribution is realized. In addition, three-level can be generalized to multi-level and bi-party to multi-party,i.e., multi-party multi-level quantum key distribution based on entanglement swapping can be achieved. Using entanglement swapping and multi-level key distribution can significantly increase the efficiency of the detection of eavesdropping, the key generation rate and the information flux.
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  • Abstract views:  8120
  • PDF Downloads:  1179
  • Cited By: 0
Publishing process
  • Received Date:  27 January 2005
  • Accepted Date:  30 June 2005
  • Published Online:  05 June 2005

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