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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2412.05379 |
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| _version_ | 1866915210774708224 |
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| author | Carlton, John Gibson, Valerie Kovachy, Tim McCabe, Christopher Mitchell, Jeremiah |
| author_facet | Carlton, John Gibson, Valerie Kovachy, Tim McCabe, Christopher Mitchell, Jeremiah |
| contents | Terrestrial long-baseline atom interferometer experiments are emerging as powerful tools for probing new fundamental physics, including searches for dark matter and gravitational waves. In the frequency range relevant to these signals, gravity gradient noise (GGN) poses a significant challenge. While previous studies for vertical instruments have focused on GGN induced by seismic waves, atmospheric fluctuations in pressure and temperature also lead to variations in local gravity. In this work, we advance the understanding of atmospheric GGN in vertical atom interferometers, formulating a robust characterization of its impact. We evaluate the effectiveness of underground placement of atom interferometers as a passive noise mitigation strategy. Additionally, we empirically derive global high- and low-noise models for atmospheric pressure GGN and estimate an analogous range for atmospheric temperature GGN. To highlight the variability of temperature-induced noise, we compare data from three prospective experimental sites. Our findings establish atmospheric GGN as comparable to seismic noise in its impact and underscore the importance of including these effects in site selection and active noise monitoring for future experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_05379 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Clear skies ahead: characterizing atmospheric gravity gradient noise for vertical atom interferometers Carlton, John Gibson, Valerie Kovachy, Tim McCabe, Christopher Mitchell, Jeremiah General Relativity and Quantum Cosmology High Energy Physics - Phenomenology Atmospheric and Oceanic Physics Atomic Physics Instrumentation and Detectors Terrestrial long-baseline atom interferometer experiments are emerging as powerful tools for probing new fundamental physics, including searches for dark matter and gravitational waves. In the frequency range relevant to these signals, gravity gradient noise (GGN) poses a significant challenge. While previous studies for vertical instruments have focused on GGN induced by seismic waves, atmospheric fluctuations in pressure and temperature also lead to variations in local gravity. In this work, we advance the understanding of atmospheric GGN in vertical atom interferometers, formulating a robust characterization of its impact. We evaluate the effectiveness of underground placement of atom interferometers as a passive noise mitigation strategy. Additionally, we empirically derive global high- and low-noise models for atmospheric pressure GGN and estimate an analogous range for atmospheric temperature GGN. To highlight the variability of temperature-induced noise, we compare data from three prospective experimental sites. Our findings establish atmospheric GGN as comparable to seismic noise in its impact and underscore the importance of including these effects in site selection and active noise monitoring for future experiments. |
| title | Clear skies ahead: characterizing atmospheric gravity gradient noise for vertical atom interferometers |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Phenomenology Atmospheric and Oceanic Physics Atomic Physics Instrumentation and Detectors |
| url | https://arxiv.org/abs/2412.05379 |