Collision-resolved pressure sensing
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866913309356195840 |
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| author | Barker, Daniel S. Carney, Daniel LeBrun, Thomas W. Moore, David C. Taylor, Jacob M. |
| author_facet | Barker, Daniel S. Carney, Daniel LeBrun, Thomas W. Moore, David C. Taylor, Jacob M. |
| contents | Heat and pressure are ultimately transmitted via quantized degrees of freedom, like gas particles and phonons. While a continuous Brownian description of these noise sources is adequate to model measurements with relatively long integration times, sufficiently precise measurements can resolve the detailed time dependence coming from individual bath-system interactions. We propose the use of nanomechanical devices operated with impulse readout sensitivity around the ``standard quantum limit'' to sense ultra-low gas pressures by directly counting the individual collisions of gas particles on a sensor. We illustrate this in two paradigmatic model systems: an optically levitated nanobead and a tethered membrane system in a phononic bandgap shield. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2303_09922 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Collision-resolved pressure sensing Barker, Daniel S. Carney, Daniel LeBrun, Thomas W. Moore, David C. Taylor, Jacob M. Quantum Physics High Energy Physics - Experiment Instrumentation and Detectors Heat and pressure are ultimately transmitted via quantized degrees of freedom, like gas particles and phonons. While a continuous Brownian description of these noise sources is adequate to model measurements with relatively long integration times, sufficiently precise measurements can resolve the detailed time dependence coming from individual bath-system interactions. We propose the use of nanomechanical devices operated with impulse readout sensitivity around the ``standard quantum limit'' to sense ultra-low gas pressures by directly counting the individual collisions of gas particles on a sensor. We illustrate this in two paradigmatic model systems: an optically levitated nanobead and a tethered membrane system in a phononic bandgap shield. |
| title | Collision-resolved pressure sensing |
| topic | Quantum Physics High Energy Physics - Experiment Instrumentation and Detectors |
| url | https://arxiv.org/abs/2303.09922 |