Quantum state sharing of an arbitrary four-qubit GHZ-type state by using a four-qubit cluster state

Authors:
Yi-You Nie;Yuan-Hua Li;Jun-Chang Liu;Ming-Huang Sang
Affiliations:
Department of Physics, Jiangxi Normal University, Nanchang, China 330022 and Key Laboratory of Optoelectronic and Telecommunication of Jiangxi province, Nanchang, China 330022;Department of Physics, Jiangxi Normal University, Nanchang, China 330022;Department of Physics, Jiangxi Normal University, Nanchang, China 330022;Department of Physics, Jiangxi Normal University, Nanchang, China 330022
Venue:
Quantum Information Processing
Year:
2011

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Abstract

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.