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A field-deployable compact gravimeter based on a grating magneto-optical trap with μGal-level long-term stability.

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Τίτλος: A field-deployable compact gravimeter based on a grating magneto-optical trap with μGal-level long-term stability.
Συγγραφείς: Seo, Sangwon1, Hong, Hyun-Gue1, Lee, Jae-Hoon1, Park, Sang Eon1, Kwon, Taeg Yong1, Lee, Sanglok1, Choi, Jeongju1, Seo, Meungho1, Park, Jongcheol2, Lee, Sang Bum1 lsbum@kriss.re.kr
Πηγή: Applied Physics Letters. 2/9/2026, Vol. 128 Issue 6, p1-6. 6p.
Θεματικοί όροι: *Gravimeters (Geophysical instruments), *Ion pumps (Physics), *Magnetic shielding, *Seismometers, *Magnetooptical devices
Περίληψη: We present a compact quantum gravimeter based on a grating magneto-optical trap using 87Rb atoms that achieves μ Gal-level long-term stability without passive vibration isolation. The sensor head integrates magnetic shielding, an ion pump, optical components, and a classical seismometer within a total volume of less than 75L. The gravimeter achieves a sensitivity of 270 μ Gal/ Hz and a stability of 5 μ Gal at a 1-h average with the long-term gravity record in good agreement with the theoretical tidal model. These results demonstrate a field-deployable platform for portable and chip-integrable quantum gravimetry. [ABSTRACT FROM AUTHOR]
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  – Url: https://resolver.ebsco.com/c/fiv2js/result?sid=EBSCO:asx&genre=article&issn=00036951&ISBN=&volume=128&issue=6&date=20260209&spage=1&pages=1-6&title=Applied Physics Letters&atitle=A%20field-deployable%20compact%20gravimeter%20based%20on%20a%20grating%20magneto-optical%20trap%20with%20%CE%BCGal-level%20long-term%20stability.&aulast=Seo%2C%20Sangwon&id=DOI:10.1063/5.0307253
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  Data: A field-deployable compact gravimeter based on a grating magneto-optical trap with μGal-level long-term stability.
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  Data: <searchLink fieldCode="AR" term="%22Seo%2C+Sangwon%22">Seo, Sangwon</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hong%2C+Hyun-Gue%22">Hong, Hyun-Gue</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lee%2C+Jae-Hoon%22">Lee, Jae-Hoon</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Park%2C+Sang+Eon%22">Park, Sang Eon</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kwon%2C+Taeg+Yong%22">Kwon, Taeg Yong</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lee%2C+Sanglok%22">Lee, Sanglok</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Choi%2C+Jeongju%22">Choi, Jeongju</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Seo%2C+Meungho%22">Seo, Meungho</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Park%2C+Jongcheol%22">Park, Jongcheol</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Lee%2C+Sang+Bum%22">Lee, Sang Bum</searchLink><relatesTo>1</relatesTo><i> lsbum@kriss.re.kr</i>
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  Data: <searchLink fieldCode="JN" term="%22Applied+Physics+Letters%22">Applied Physics Letters</searchLink>. 2/9/2026, Vol. 128 Issue 6, p1-6. 6p.
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  Data: *<searchLink fieldCode="DE" term="%22Gravimeters+%28Geophysical+instruments%29%22">Gravimeters (Geophysical instruments)</searchLink><br />*<searchLink fieldCode="DE" term="%22Ion+pumps+%28Physics%29%22">Ion pumps (Physics)</searchLink><br />*<searchLink fieldCode="DE" term="%22Magnetic+shielding%22">Magnetic shielding</searchLink><br />*<searchLink fieldCode="DE" term="%22Seismometers%22">Seismometers</searchLink><br />*<searchLink fieldCode="DE" term="%22Magnetooptical+devices%22">Magnetooptical devices</searchLink>
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  Data: We present a compact quantum gravimeter based on a grating magneto-optical trap using 87Rb atoms that achieves μ Gal-level long-term stability without passive vibration isolation. The sensor head integrates magnetic shielding, an ion pump, optical components, and a classical seismometer within a total volume of less than 75L. The gravimeter achieves a sensitivity of 270 μ Gal/ Hz and a stability of 5 μ Gal at a 1-h average with the long-term gravity record in good agreement with the theoretical tidal model. These results demonstrate a field-deployable platform for portable and chip-integrable quantum gravimetry. [ABSTRACT FROM AUTHOR]
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        Value: 10.1063/5.0307253
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      – Code: eng
        Text: English
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        PageCount: 6
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      – SubjectFull: Gravimeters (Geophysical instruments)
        Type: general
      – SubjectFull: Ion pumps (Physics)
        Type: general
      – SubjectFull: Magnetic shielding
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      – SubjectFull: Seismometers
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      – SubjectFull: Magnetooptical devices
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              Text: 2/9/2026
              Type: published
              Y: 2026
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