Journal
FRONTIERS OF PHYSICS
Volume 13, Issue 5, Pages -Publisher
HIGHER EDUCATION PRESS
DOI: 10.1007/s11467-018-0766-2
Keywords
multi-hop teleportation; quantum network; mesh topology
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Funding
- Hong Kong, Macao, and Taiwan Science & Technology Cooperation Program of China [2016YFE0123100]
- National Natural Science Foundation of China (NSFC) [61372100]
- Fundamental Research Funds for the Central Universities
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [KYLX16_0225]
- Scientific Research Foundation of Graduate School of Southeast University [YBJJ1710]
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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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