Abstract
This paper proposes a quantum teleportation scheme based on seven particle entangled states, which can achieve complete security and improve efficiency. In our scheme, the quantum channel is constructed by selecting seven-qubit entangled states in order to improve the efficiency of the protocol. The protocol performs cross-domain identity authentication before teleportation, and the sender and receiver need the consent of the controller to obtain the quantum information sent by the receiver. Further improve the security of the protocol. If the controller agrees, he needs to measure his own particles, and then send the measurement results to the communicating parties. The sender and the receiver use the results provided by the controller to perform appropriate unitary operations on their particles, so that the unknown quantum state can be reconstructed to achieve asymmetric controlled bidirectional teleportation. The quantum channel of this scheme has higher transmission efficiency in the experiment, and the corresponding measurement operation is also simple and convenient.
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Acknowledgements
This work was supported by the Liaoning Provincial Natural Science Foundation of China (Grant No. 2019-MS-286), and Basic Scientific Research Project of Liaoning Provincial Department of Education (Grant No. LJC202007).
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Zhu, H., Zhang, Y. & Chen, L. Quantum Private Transfer with Seven Entangled States for Cross-Domain Environment. Int J Theor Phys 60, 2753–2765 (2021). https://doi.org/10.1007/s10773-021-04835-8
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DOI: https://doi.org/10.1007/s10773-021-04835-8