Deterministic Joint Remote Preparation of Arbitrary Four-Qubit Cluster-Type State Using EPR Pairs |
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Authors: | Wenqian Li Hanwu Chen Zhihao Liu |
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Institution: | 1.School of Computer Science and Engineering,Southeast University,Nanjing,People’s Republic of China;2.Department of Information Technology,Nanjing Forest Police College,Nanjing,People’s Republic of China;3.Key Laboratory of Computer Network and Information Integration in Southeast University, Ministry of Education,Nanjing,People’s Republic of China |
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Abstract: | Using four Einstein-Podolsky-Rosen (EPR) pairs as the pre-shared quantum channel, an economic and feasible scheme for deterministic joint remote preparation of the four-particle cluster-type state is presented. In the scheme, one of the senders performs a four-qubit projective measurement based on a set of ingeniously constructed vectors with real coefficients, while the other performs the bipartite projective measurements in terms of the imaginary coefficients. Followed with some appropriate unitary operations and controlled-NOT operations, the receiver can reconstruct the desired state. Compared with other analogous JRSP schemes, our scheme can not only reconstruct the original state (to be prepared remotely) with unit successful probability, but also ensure greater efficiency. |
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