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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2507.15508 |
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| _version_ | 1866912605776379904 |
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| author | Salykina, D. I. Liamin, V. S. Sharapova, P. R. Khalili, F. Ya. |
| author_facet | Salykina, D. I. Liamin, V. S. Sharapova, P. R. Khalili, F. Ya. |
| contents | Quantum non-demolition (QND) measurement is a special technique that allows to evade quantum back-action. In this paper, we propose a new QND measurement scheme of the optical field quadratures based on the non-degenerate optical parametric amplifier. We show that for a proper set of parameters, this scheme can realize a new type of QND measurement, where the quadrature of interest is amplified, but still does not subject to any back action. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_15508 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Amplified quantum non-demolition measurements of optical quadratures using quadratic nonlinearity Salykina, D. I. Liamin, V. S. Sharapova, P. R. Khalili, F. Ya. Quantum Physics Quantum non-demolition (QND) measurement is a special technique that allows to evade quantum back-action. In this paper, we propose a new QND measurement scheme of the optical field quadratures based on the non-degenerate optical parametric amplifier. We show that for a proper set of parameters, this scheme can realize a new type of QND measurement, where the quadrature of interest is amplified, but still does not subject to any back action. |
| title | Amplified quantum non-demolition measurements of optical quadratures using quadratic nonlinearity |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2507.15508 |