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Global Positioning Scheme via Quantum Teleportation |
| You-Quan Li1,2,3*, Li-Hua Lu2*, and Qi-Hang Zhu2 |
1Chern Institute of Mathematics, Nankai University, Tianjin 300071, China
2School of Physics, Zhejiang University, Hangzhou 310058, China
3Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China
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| Cite this article: |
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You-Quan Li, Li-Hua Lu, and Qi-Hang Zhu 2023 Chin. Phys. Lett. 40 110304 |
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Abstract Quantum teleportation scheme is undoubtedly an inspiring theoretical discovery as an amazing application of quantum physics, which was experimentally realized several years later. For the purpose of quantum communication via this scheme, an entangled ancillary pair shared by Alice and Bob is the essential ingredient, and a quantum memory in Bob's system is necessary for him to keep the quantum state until the classical message from Alice arrives. Yet, the quantum memory remains a challenge in both technology and rationale. Here we show that quantum teleportation provides fresh perspectives in terms of an alternative scheme for global positioning system. Referring to fixed locations of Bob and Charlie, Alice can determine her relative position by comparing quantum states before and after teleporting around via Bob and Charlie successively. This may open up a new scene in the stage of the application of quantum physics without quantum memories.
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Received: 07 July 2023
Published: 15 November 2023
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