Optomechanical Detection of Individual Gas Collisions
Fuente:
arXiv
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| Autori principali: | , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| Soggetti: | |
| Accesso online: | |
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| _version_ | 1866915945826484224 |
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| author | Tseng, Yu-Han Hardy, Clarke A. Penny, T. W. Lowe, Cecily Baeza-Rubio, Jacqueline Carney, Daniel Moore, David C. |
| author_facet | Tseng, Yu-Han Hardy, Clarke A. Penny, T. W. Lowe, Cecily Baeza-Rubio, Jacqueline Carney, Daniel Moore, David C. |
| contents | We experimentally demonstrate the detection of momentum transfers from individual collisions of Kr, Xe, and SF$_6$ with an optically levitated nanoparticle, finding good agreement with theoretical expectations. The observed event rates accurately measure the gas partial pressures, while the spectral shape provides a sensitive probe of the surface properties of the nanoparticle, including its temperature. The reconstruction of impulse signals as small as 200 keV/$c$ further establishes that levitated optomechanical sensors can reach the sensitivity required for precision measurements of fundamental particle interactions, and demonstrates a proof-of-principle for a primary pressure sensor based on the detection of individual gas particle collisions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_18371 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Optomechanical Detection of Individual Gas Collisions Tseng, Yu-Han Hardy, Clarke A. Penny, T. W. Lowe, Cecily Baeza-Rubio, Jacqueline Carney, Daniel Moore, David C. Quantum Physics High Energy Physics - Experiment Instrumentation and Detectors We experimentally demonstrate the detection of momentum transfers from individual collisions of Kr, Xe, and SF$_6$ with an optically levitated nanoparticle, finding good agreement with theoretical expectations. The observed event rates accurately measure the gas partial pressures, while the spectral shape provides a sensitive probe of the surface properties of the nanoparticle, including its temperature. The reconstruction of impulse signals as small as 200 keV/$c$ further establishes that levitated optomechanical sensors can reach the sensitivity required for precision measurements of fundamental particle interactions, and demonstrates a proof-of-principle for a primary pressure sensor based on the detection of individual gas particle collisions. |
| title | Optomechanical Detection of Individual Gas Collisions |
| topic | Quantum Physics High Energy Physics - Experiment Instrumentation and Detectors |
| url | https://arxiv.org/abs/2604.18371 |