| Abstract: | 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. |
