The CLEAR project, thanks to the expertise of the Cold Atoms group in Bordeaux from the LP2N laboratory (UMR CNRS, University of Bordeaux and IOGS), aims to study quantum sensor networks based on interferometry with atoms cooled by laser. The objective of these networks is to provide measurements that are both accurate and resolved (in time and/or space) of the gravity field. The project includes modeling, measurements in the laboratory and then on a site with a geophysical interest, as well as the development of numerical simulation and/or inversion tools to size and characterize these sensor networks, then analyze and interpret the measurements they provide.
Launched in September 2022, CLEAR aims to create large-scale research infrastructures using these networks of quantum sensors for applications in geophysics (hydrology, geology, seismology...) and in fundamental physics (fundamental properties of gravitational interaction, detection of low-frequency gravitational waves, study of dark matter).