期刊
QUANTUM INFORMATION PROCESSING
卷 10, 期 5, 页码 603-608出版社
SPRINGER
DOI: 10.1007/s11128-010-0220-z
关键词
Quantum information; Cluster state; Quantum state sharing; Arbitrary four-qubit GHZ-type state; Controlled-NOT operation
资金
- National Natural Science Foundation of China [60807014]
- Natural Science Foundation of Jiangxi Province, China [2009GZW0005]
- Research Foundation of state key laboratory of advanced optical communication systems and networks
- Research Foundation of the Education Department of Jiangxi Province [GJJ09153]
We demonstrate that a four-qubit cluster state can be used to realize the deterministic quantum state sharing (QSTS) of an arbitrary four-qubit GHZ-type state among three parties by introducing three ancillary qubits and performing three controlled-NOT operations. In our scheme, any one of the two agents has the ability to reconstruct the original state if he/she collaborates with the other one, whilst individual agent obtains no information.
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