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Faithful Multihop Two-Qubit Transmission Through GHZ-GHZ Channel

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Abstract

Quantum teleportation is an important method for transmitting quantum states between two quantum communication nodes. In this paper, we propose a low-latency quantum communication scheme based on Greenberger-Horne-Zeilinger (GHZ) state. To implement two-qubit transmission, the source and all intermediate nodes perform quantum measurements simultaneously and the measurement results are transmitted to the destination node through classical channel independently. The destination node performs appropriate unitary operation on its particles to recover the original two-qubit state based on received measurement results. Our scheme effectively reduces the end-to-end quantum communication delay.

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Acknowledgements

This work is supported by the National Natural Science Foundation of China (Grant No. 61701285).

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Authors and Affiliations

  1. College of Electronic and Information Engineering, Shandong University of Science and Technology, Qingdao, 266590, China

    Shuangshuang Shuai, Na Chen, Bin Yan & Zhuopeng Wang

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  1. Shuangshuang Shuai
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  2. Na Chen
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  3. Bin Yan
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  4. Zhuopeng Wang
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Correspondence to Na Chen.

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Shuai, S., Chen, N., Yan, B. et al. Faithful Multihop Two-Qubit Transmission Through GHZ-GHZ Channel. Int J Theor Phys 60, 2488–2498 (2021). https://doi.org/10.1007/s10773-020-04609-8

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  • DOI: https://doi.org/10.1007/s10773-020-04609-8

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