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03 November 2024
 
  » arxiv » arxiv.0706.0097

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Multiparty quantum secret sharing with pure entangled states and decoy photons
Ping Zhou ; Xi-Han Li ; Yu-Jie Liang ; Fu-Guo Deng ; Hong-Yu Zhou ;
Date 1 Jun 2007
AbstractWe present a scheme for multiparty quantum secret sharing of a private key with pure entangled states and decoy photons. The boss, say Alice uses the decoy photons, which are randomly in one of the four nonorthogonal single-photon states, to prevent a potentially dishonest agent from eavesdropping freely. This scheme requires the parties of communication to have neither an ideal single-photon quantum source nor a maximally entangled one, which makes this scheme more convenient than others in a practical application. Moreover, it has the advantage of having high intrinsic efficiency for qubits and exchanging less classical information in principle.
Source arXiv, arxiv.0706.0097
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