Heisenberg-limited quantum metrology using 100-photon Fock states
| Autor: | Deng, Xiaowei, Li, Sai, Chen, Zi-Jie, Ni, Zhongchu, Cai, Yanyan, Mai, Jiasheng, Zhang, Libo, Zheng, Pan, Yu, Haifeng, Zou, Chang-Ling, Liu, Song, Yan, Fei, Xu, Yuan, Yu, Dapeng |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Nat. Phys. 2024 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1038/s41567-024-02619-5 |
| Popis: | Quantum metrology has emerged as a promising avenue for surpassing the limitations of classical mechanics in high-precision measurements. However, the practical implementation of quantum metrology is hindered by the challenges of manipulating exotic quantum states in large systems. Here, we propose and demonstrate a hardware-efficient approach to achieve Heisenberg-limited quantum metrology using large photon-number Fock states. We have developed a programmable photon number filter that efficiently generates Fock states with up to 100 photons in a high-quality superconducting microwave cavity. Using these highly nontrivial states in displacement and phase measurements, we demonstrate a precision scaling close to the Heisenberg limit and achieve a maximum metrological gain of up to 14.8 dB. Our hardware-efficient quantum metrology can be extended to mechanical and optical systems and provides a practical solution for high metrological gain in bosonic quantum systems, promising potential applications in radiometry and the search for new particles. Comment: Main text: 10 pages, 4 figures; Supplement: 16 pages, 9 figures, 1 table |
| Databáze: | arXiv |
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