Quantum Information Splitting Of An Arbitrary Three-Qubit State

Quantum information science is a new and developing interdiscipline subject, which combined by the classic information theory and quantum mechanics, based on quantum mechanics superposition principle, is a new frontier science of studying the information processing. Quantum information science mainly includes two parts: quantum communication and quantum computation. Compared with classic com-munication, quantum communication is more efficient and absolute safety, and can realize some function which the classic communication unable to realize. Because quantum information science has strong development future, and at present, theory and experiment have made important progress, all these arouse the enthusiasm of the people more research.In our paper, we propose a realizable quantum information splitting (QIS) scheme for an arbitrary three-qubit state via the cavity input-output process. In our scheme, a four-qubit cluster state and a three-qubit Greenberger-Horne-Zeilinger (GHZ) state are used as quantum channel. The sender and controller only need to perform Bell-state measurements and a single-qubit measurement, respectively. The receiver can reconstruct the arbitrary three-qubit state by classical communication and local operations. Our paper only needs7qubits quantum resources and7bits classical information delivered by participators. That is, our scheme require the threshold number of qubits that are needed for splitting an ar-bitrary three-qubit state among three parties. At last, we have demonstrated the realization of in cavity input-output process.