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Remote preparation of an arbitrary multi-qubit state via two-qubit entangled states

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Abstract

We propose a novel scheme for remote preparation of an arbitrary n-qubit state with the aid of an appropriate local \(2^n\times 2^n\) unitary operation and n maximally entangled two-qubit states. The analytical expression of local unitary operation, which is constructed in the form of iterative process, is presented for the preparation of n-qubit state in detail. We obtain the total successful probabilities of the scheme in the general and special cases, respectively. The feasibility of our scheme in preparing remotely multi-qubit states is explicitly demonstrated by theoretical studies and concrete examples, and our results show that the novel proposal could enlarge the applied range of remote state preparation.

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Acknowledgements

The authors thank Z. Y. Xu, J. W. Luo and Y. Zhu for helpful discussions. This work is supported by the Program for National Natural Science Foundation of China (Grant Nos. 61134008, 61673389 and 61273202).

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Authors and Affiliations

  1. Information and Navigation College, Air Force Engineering University, Xi’an, 710077, Shanxi, People’s Republic of China

    Jiahua Wei, Lei Shi, Lihua Ma, Yang Xue, Xuchun Zhuang, Qiaoyan Kang & Xuesong Li

  2. Department of Automatic Control, College of Mechatronics and Automation, National University of Defense Technology, Changsha, 410073, Hunan, People’s Republic of China

    Jiahua Wei

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  1. Jiahua Wei
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  2. Lei Shi
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  3. Lihua Ma
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Correspondence to Jiahua Wei.

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Wei, J., Shi, L., Ma, L. et al. Remote preparation of an arbitrary multi-qubit state via two-qubit entangled states. Quantum Inf Process 16, 260 (2017). https://doi.org/10.1007/s11128-017-1708-6

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