Cold-atom sources for the Matter-wave laser Interferometric Gravitation Antenna (MIGA)

Quentin Beaufils (1) , Leonid Sidorenkov (1) , Pierre Lebegue , Bertrand Venon (1) , David Holleville (1) , Laurent Volodimer (1) , Michel Lours (1) , Joseph Junca , Xinhao Zou , Andrea Bertoldi , Marco Prevedelli , Dylan Sabulsky , Philippe Bouyer , Arnaud Landragin (1) , Benjamin Canuel (2) , Remi Geiger (1)

1 LNE - SYRTE - Laboratoire national de métrologie et d'essais - Systèmes de Référence Temps-Espace
2 LP2N - Laboratoire Photonique, Numérique et Nanosciences

Abstract 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.

Domaines: Physique Atomique [physics.atom-ph]

Quentin Beaufils, Leonid Sidorenkov, Pierre Lebegue, Bertrand Venon, David Holleville, et al.. Cold-atom sources for the Matter-wave laser Interferometric Gravitation Antenna (MIGA). Scientific Reports, 2022, 12 (1), pp.19000. ⟨10.1038/s41598-022-23468-3⟩. ⟨hal-03862119v2⟩