Journal
SCIENTIFIC REPORTS
Volume 12, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41598-022-23468-3
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Funding
- French State through the Agence Nationale de la Recherche (ANR) [ANR-11- EQPX-0028, ANR-10-IDEX-03-02]
- Region d'Aquitaine
- CPER LSBB2020 project
- Region PACA
- departement du Vaucluse
- FEDER [PA0000321]
- Ville de Paris (project HSENS-MWGRAV)
- DIM SIRTEQ
- Agence Nationale pour la Recherche [ANR-18-CE47-0002-01, ANR-18-CE91-0003-01]
- China Scholarships Council [201806010364]
- Association Nationale de la Recherche et de la Technologie [2018/1565]
- Agence Nationale de la Recherche (ANR) [ANR-18-CE47-0002] Funding Source: Agence Nationale de la Recherche (ANR)
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The MIGA instrument is an underground device using cold-atom interferometry for precision gravity measurements. It serves as a prototype for gravitational wave detectors and consists of three spatially separated interferometers driven by two counter-propagating lasers. It allows for gravity gradient measurements along a 150-meter baseline.
The Matter-wave laser Interferometric Gravitation Antenna (MIGA) is an underground instrument using cold-atom interferometry to perform precision measurements of gravity gradients and strains. Following its installation at the low noise underground laboratory LSBB in the South-East of France, it will serve as a prototype for gravitational wave detectors with a horizontal baseline of 150 meters. Three spatially separated cold-atom interferometers will be driven by two common counter-propagating lasers to perform a measurement of the gravity gradient along this baseline. This article presents the cold-atom sources of MIGA, focusing on the design choices, the realization of the systems, the performances and the integration within the MIGA instrument.
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