Abstract
To realize efficient quantum communication based on quantum repeater, we propose a secure quantum network coding scheme for controlled repeater networks, which adds a controller as a trusted party and is able to control the process of EPR-pair distribution. As the key operations of quantum repeater, local operations and quantum communication are designed to adopt quantum one-time pad to enhance the function of identity authentication instead of local operations and classical communication. Scheme analysis shows that the proposed scheme can defend against active attacks for quantum communication and realize long-distance quantum communication with minimal resource consumption.










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Acknowledgments
This project was supported by the National Natural Science Foundation of China (Nos. 61571024, 61272501), the National Basic Research Program of China (No. 2012CB315905), the Research Promotion Grants-in-Aid for KUT Graduates of Special Scholarship Program and the Fundamental Research Funds for Central Universities (No. YWF15GJSYS059) for valuable helps.
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Shang, T., Li, J. & Liu, Jw. Secure quantum network coding for controlled repeater networks. Quantum Inf Process 15, 2937–2953 (2016). https://doi.org/10.1007/s11128-016-1323-y
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DOI: https://doi.org/10.1007/s11128-016-1323-y