Journal
EUROPEAN PHYSICAL JOURNAL D
Volume 61, Issue 3, Pages 785-790Publisher
SPRINGER
DOI: 10.1140/epjd/e2010-10320-y
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Funding
- National Science Council of the Republic of China, Taiwan [NSC 98-2221-E-006-097-MY3]
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The three-qubit W state, with an important feature that each pair of it's qubits has the same and maximum amount of bipartite entanglement, can be reduced to an entangled 2-qubit system if one of its qubits is lost. Recently, Xue et al. proposed a three-party quantum secret sharing (QSS) protocol based on the three-qubit W state [Chinese Phys. 15, 7 (2006)]. Also, Joo et al. proposed a pair-wise quantum key distribution protocol among three users based on a special measurement on the three-qubit W state [eprint arXiv:quant-ph/0204003v2 (2002)]. This study aims to propose a novel quantum key distribution protocol (QKDP) for arbitrary two communications based on the dense coding and the special measurement of three-qubit W state with the X basis and the Z basis.
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