Abstract
Quantum communication is a kind of communication mode which uses quantum physical characteristics to ensure the security of information transmission channel. It is widely concerned because it is different from the traditional cryptographic communication. Among them, quantum teleportation is the main research field and the key technology to achieve secure communication. In this scheme, four-qubit entangled state is used as quantum channel to transmit unknown seven-qubit entangled state. Firstly, Alice will deform the unknown seven-qubit entangled state. After transmission, Alice performs a series of operations on the particles she owns, and performs single-qubit measurement operation, and tells Bob the measurement results through the classical channel. After the measurement, Bob can reconstruct the unknown seven-qubit entangled state by sending the measurement results and the corresponding unitary operation, and with the help of auxiliary particles. We also carried out a security analysis to prove that the scheme is safe, and use the IBM platform for experimental verification, compared with the previous scheme, the scheme is more simple and efficient.
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25 June 2022
A Correction to this paper has been published: https://doi.org/10.1007/s10773-022-05170-2
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Funding
This work was supported in part by the National Natural Science Foundation of China (61802033,62172060), Sichuan Science and Technology Program (2022YFG0316), Sichuan Regional Innovation Cooperation Project(2020YFQ0018), Sichuan Science and Technology Program (2021YFG0027,2020YFG0475,2018GZ0087,2019YJ0543),Key R&D Project of Sichuan Province Science and Technology Plan (2020YFS0445).
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Zheng, Y., Li, D., Liu, X. et al. Quantum Teleportation of Unknown Seven-Qubit Entangled State Using Four-Qubit Entangled State. Int J Theor Phys 61, 138 (2022). https://doi.org/10.1007/s10773-022-05039-4
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DOI: https://doi.org/10.1007/s10773-022-05039-4