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Multi-hop teleportation in a quantum network based on mesh topology

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Abstract

In this paper, we propose a mesh-topology-based multi-hop teleportation scheme for a quantum network. By using the proposed scheme, quantum communication can be realized between two arbitrary nodes, even when they do not share a direct quantum channel. Einstein–Podolsky–Rosen pairs are used as quantum channels. The source node (initial sender) and all intermediate nodes make Bell measurements independently. They send the results to the destination node (final receiver) by classical channels. The quantum state can be determined from the Bell measurement result, and only the destination node is required for simple unitary transformation. This method of simultaneous measurement contributes significantly to quantum network by reducing the hop-by-hop transmission delay.

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Acknowledgements

The authors want to thank Prof. T. C. Poon of Virginia Tech for his comments and suggestions. The authors also want to thank Prof. Jian Dang of Southeast University for his suggestions. This work was supported by the Hong Kong, Macao, and Taiwan Science & Technology Cooperation Program of China (Grant No. 2016YFE0123100), the National Natural Science Foundation of China (NSFC) (Grant No. 61372100), the Fundamental Research Funds for the Central Universities and Postgraduate Research & Practice Innovation Program of Jiangsu Province (No. KYLX16 0225), and the Scientific Research Foundation of Graduate School of Southeast University (No. YBJJ1710).

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Authors and Affiliations

  1. National Mobile Communications Research Laboratory, Southeast University, Nanjing, 210096, China

    Xiao-Qin Gao, Zai-Chen Zhang & Bin Sheng

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  1. Xiao-Qin Gao
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  2. Zai-Chen Zhang
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  3. Bin Sheng
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Correspondence to Zai-Chen Zhang.

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Gao, XQ., Zhang, ZC. & Sheng, B. Multi-hop teleportation in a quantum network based on mesh topology. Front. Phys. 13, 130314 (2018). https://doi.org/10.1007/s11467-018-0766-2

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  • DOI: https://doi.org/10.1007/s11467-018-0766-2

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