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Deterministic remote preparation of arbitrary multi-qubit equatorial states via two-qubit entangled states

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Abstract

We propose an efficient scheme for remotely preparing an arbitrary n-qubit equatorial state via n two-qubit maximally entangled states. Compared to the former scheme (Wei et al. in Quantum Inf Process 16:260, 2017) that has the 50% successful probability when the amplitude factors of prepared states are \(2^{-n{/}2}\), the probability would be increased to 100% by using of our modified proposal. The feasibility of our scheme for remote preparation arbitrary multi-qubit equatorial states is explicitly demonstrated by theoretical studies and concrete examples.

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Acknowledgements

The authors thank J.W. Luo, B.X. Zhao, and Y.X. Li for helpful discussions. This work is supported by the Program for National Natural Science Foundation of China (Grant Nos. 61673389, 61703428, and 61703422).

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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, Yu Zhu, Yang Xue & Zhiyan Xu

  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

  3. Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi’an, 710077, Shanxi, People’s Republic of China

    Jun Jiang

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  1. Jiahua Wei
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  2. Lei Shi
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  3. Yu Zhu
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  4. Yang Xue
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  5. Zhiyan Xu
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  6. Jun Jiang
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Correspondence to Jiahua Wei or Lei Shi.

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Wei, J., Shi, L., Zhu, Y. et al. Deterministic remote preparation of arbitrary multi-qubit equatorial states via two-qubit entangled states. Quantum Inf Process 17, 70 (2018). https://doi.org/10.1007/s11128-018-1837-6

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