Quantum-enhanced distributed phase sensing with a truncated SU(1,1) interferometer
In recent years, distributed quantum sensing has gained interest for a range of applications requiring networks of sensors, from global-scale clock synchronization to high energy physics. In particular, a network of entangled sensors can improve not only the sensitivity beyond the shot noise limit,...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-06-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.023231 |
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| _version_ | 1849472176044900352 |
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| author | Seongjin Hong Matthew A. Feldman Claire E. Marvinney Donghwa Lee Changhyoup Lee Michael T. Febbraro Alberto M. Marino Raphael C. Pooser |
| author_facet | Seongjin Hong Matthew A. Feldman Claire E. Marvinney Donghwa Lee Changhyoup Lee Michael T. Febbraro Alberto M. Marino Raphael C. Pooser |
| author_sort | Seongjin Hong |
| collection | DOAJ |
| description | In recent years, distributed quantum sensing has gained interest for a range of applications requiring networks of sensors, from global-scale clock synchronization to high energy physics. In particular, a network of entangled sensors can improve not only the sensitivity beyond the shot noise limit, but also enable a Heisenberg scaling with the number of sensors. Here, using bright entangled twin beams, we theoretically and experimentally demonstrate the detection of a linear combination of two distributed phases beyond the shot noise limit with a truncated SU(1,1) interferometer. Specifically, we show a quantum noise reduction of 1.7±0.3 dB below what is possible with the corresponding classical configuration. Additionally, we theoretically extend the use of a truncated SU(1,1) interferometer to a multi-phase-distributed sensing scheme that leverages entanglement as a resource to achieve a quantum improvement in the scaling with the number of sensors in the network. Our results pave the way for developing quantum-enhanced sensor networks that can achieve an entanglement-enhanced sensitivity. |
| format | Article |
| id | doaj-art-2d6d2bdd295d42e1a6cf892fa1889b64 |
| institution | Kabale University |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-2d6d2bdd295d42e1a6cf892fa1889b642025-08-20T03:24:36ZengAmerican Physical SocietyPhysical Review Research2643-15642025-06-017202323110.1103/PhysRevResearch.7.023231Quantum-enhanced distributed phase sensing with a truncated SU(1,1) interferometerSeongjin HongMatthew A. FeldmanClaire E. MarvinneyDonghwa LeeChanghyoup LeeMichael T. FebbraroAlberto M. MarinoRaphael C. PooserIn recent years, distributed quantum sensing has gained interest for a range of applications requiring networks of sensors, from global-scale clock synchronization to high energy physics. In particular, a network of entangled sensors can improve not only the sensitivity beyond the shot noise limit, but also enable a Heisenberg scaling with the number of sensors. Here, using bright entangled twin beams, we theoretically and experimentally demonstrate the detection of a linear combination of two distributed phases beyond the shot noise limit with a truncated SU(1,1) interferometer. Specifically, we show a quantum noise reduction of 1.7±0.3 dB below what is possible with the corresponding classical configuration. Additionally, we theoretically extend the use of a truncated SU(1,1) interferometer to a multi-phase-distributed sensing scheme that leverages entanglement as a resource to achieve a quantum improvement in the scaling with the number of sensors in the network. Our results pave the way for developing quantum-enhanced sensor networks that can achieve an entanglement-enhanced sensitivity.http://doi.org/10.1103/PhysRevResearch.7.023231 |
| spellingShingle | Seongjin Hong Matthew A. Feldman Claire E. Marvinney Donghwa Lee Changhyoup Lee Michael T. Febbraro Alberto M. Marino Raphael C. Pooser Quantum-enhanced distributed phase sensing with a truncated SU(1,1) interferometer Physical Review Research |
| title | Quantum-enhanced distributed phase sensing with a truncated SU(1,1) interferometer |
| title_full | Quantum-enhanced distributed phase sensing with a truncated SU(1,1) interferometer |
| title_fullStr | Quantum-enhanced distributed phase sensing with a truncated SU(1,1) interferometer |
| title_full_unstemmed | Quantum-enhanced distributed phase sensing with a truncated SU(1,1) interferometer |
| title_short | Quantum-enhanced distributed phase sensing with a truncated SU(1,1) interferometer |
| title_sort | quantum enhanced distributed phase sensing with a truncated su 1 1 interferometer |
| url | http://doi.org/10.1103/PhysRevResearch.7.023231 |
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