Hybrid SU(1,1) interferometry in optomechanics
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866914058145366016 |
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| author | Meng, Chao Zeuthen, Emil Sharapova, Polina R. |
| author_facet | Meng, Chao Zeuthen, Emil Sharapova, Polina R. |
| contents | In non-degenerate SU(1,1) interferometers, beam splitters are replaced by two-mode squeezers, enabling sub-shot-noise sensitivity without input squeezing and robustness to detection losses by quantum entanglement. We propose a hybrid implementation in optomechanics where one "arm" is a mechanical mode undergoing two consecutive, mode-matched interactions with a traveling optical field (constituting the other arm). Such engineered interactions allow for sub-shot-noise phase detection even in the presence of mechanical thermal noise and optical losses, advancing precision interferometry in hybrid systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_22248 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Hybrid SU(1,1) interferometry in optomechanics Meng, Chao Zeuthen, Emil Sharapova, Polina R. Quantum Physics Optics In non-degenerate SU(1,1) interferometers, beam splitters are replaced by two-mode squeezers, enabling sub-shot-noise sensitivity without input squeezing and robustness to detection losses by quantum entanglement. We propose a hybrid implementation in optomechanics where one "arm" is a mechanical mode undergoing two consecutive, mode-matched interactions with a traveling optical field (constituting the other arm). Such engineered interactions allow for sub-shot-noise phase detection even in the presence of mechanical thermal noise and optical losses, advancing precision interferometry in hybrid systems. |
| title | Hybrid SU(1,1) interferometry in optomechanics |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2509.22248 |