Single-Shot Single-Mode Optical Two-Parameter Displacement Estimation beyond Classical Limit
Uncertainty principle prohibits the precise measurement of both components of displacement parameters in phase space. We have theoretically shown that this limit can be beaten using single-photon states, in a single-shot and single-mode setting [F. Hanamura et al., Estimation of gaussian random disp...
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| Veröffentlicht in: | Physical review letters 2023-12, Vol.131 (23), p.230801-230801, Article 230801 |
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| creator | Hanamura, Fumiya Asavanant, Warit Kikura, Seigo Mishima, Moeto Miki, Shigehito Terai, Hirotaka Yabuno, Masahiro China, Fumihiro Fukui, Kosuke Endo, Mamoru Furusawa, Akira |
| description | Uncertainty principle prohibits the precise measurement of both components of displacement parameters in phase space. We have theoretically shown that this limit can be beaten using single-photon states, in a single-shot and single-mode setting [F. Hanamura et al., Estimation of gaussian random displacement using non-gaussian states, Phys. Rev. A 104, 062601 (2021).PLRAAN2469-992610.1103/PhysRevA.104.062601]. In this Letter, we validate this by experimentally beating the classical limit. In optics, this is the first experiment to estimate both parameters of displacement using non-Gaussian states. This result is related to many important applications, such as quantum error correction. |
| doi_str_mv | 10.1103/PhysRevLett.131.230801 |
| format | Article |
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| title | Single-Shot Single-Mode Optical Two-Parameter Displacement Estimation beyond Classical Limit |
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