Junca, Joseph — The MIGA project: measuring gravity strain with atom interferometry

The MIGA project aims at using atom interferometry as a tool to study geophysical signals and
demonstrate the applicability of quantum sensors to build a large scale instrument able to conduct
high sensitivity gravity strain measurements. Currently under construction at the LSBB (low noise
underground laboratory) in Rustrel in southern France, MIGA will comprise 3 atom sources connected
by a common laser link for a total length of 150 m buried 300 m underground. I will present the
instrument and its status of construction and a preliminary setup that enables us to study and fine
tune the head responsible for producing the atoms samples at the core of the experiment.