Abstract
We propose a protocol for bidirectional controlled quantum communication by using a seven-qubit entangled state. In our protocol, Alice can teleport an arbitrary unknown two-qubit state to Bob, at the same time Bob can help Alice remotely prepares an arbitrary known single-qubit state. It is shown that, with the help of the controller Charlie, the total success probability of our protocol can reach 100%.
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Acknowledgements
This work is supported by the National Natural Science Foundation of China (Grant Nos. 61765008, 11564018, 11764021), and the Research Foundation of the Education Department of Jiangxi Province (No. GJJ150339).
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Sang, Mh., Li, C. Bidirectional Controlled Quantum Communication by Using a Seven-Qubit Entangled State. Int J Theor Phys 57, 2064–2067 (2018). https://doi.org/10.1007/s10773-018-3731-5
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DOI: https://doi.org/10.1007/s10773-018-3731-5