Demonstration of controlled high-dimensional quantum teleportation
Controlled quantum teleportation (CQT), which is regarded as the prelude and backbone for a genuine quantum internet, reveals the cooperation, supervision, and control relationship among the sender, receiver, and controller in the quantum network within the simplest unit. Compared with low-dimension...
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Published in | Science China. Physics, mechanics & astronomy Vol. 67; no. 3; p. 230311 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Beijing
Science China Press
01.03.2024
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Controlled quantum teleportation (CQT), which is regarded as the prelude and backbone for a genuine quantum internet, reveals the cooperation, supervision, and control relationship among the sender, receiver, and controller in the quantum network within the simplest unit. Compared with low-dimensional counterparts, high-dimensional CQT can exhibit larger information transmission capacity and higher superiority of the controller’s authority. In this article, we report a proof-of-principle experimental realization of three-dimensional (3D) CQT with a fidelity of 97.4% ± 0.2%. To reduce the complexity of the circuit, we simulate a standard 4-qutrit CQT protocol in a 9×9-dimensional two-photon system with high-quality operations. The corresponding control powers are 48.1% ± 0.2% for teleporting a qutrit and 52.8% ± 0.3% for teleporting a qubit in the experiment, which are both higher than the theoretical value of control power in 2-dimensional CQT protocol (33%). The results fully demonstrate the advantages of high-dimensional multi-partite entangled networks and provide new avenues for constructing complex quantum networks. |
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ISSN: | 1674-7348 1869-1927 |
DOI: | 10.1007/s11433-023-2286-8 |