CARIOQA: definition of a Quantum Pathfinder Mission

Abstract

A strong potential gain for space applications is expected from the\nanticipated performances of inertial sensors based on cold atom interferometry\n(CAI) that measure the acceleration of freely falling independent atoms by\nmanipulating them with laser light. In this context, CNES and its partners\ninitiated a phase 0 study, called CARIOQA, in order to develop a Quantum\nPathfinder Mission unlocking key features of atom interferometry for space and\npaving the way for future ambitious space missions utilizing this technology.\nAs a cornerstone for the implementation of quantum sensors in space, the\nCARIOQA phase 0 aimed at defining the Quantum Pathfinder Mission's scenario and\nassociated performance objectives. To comply with these objectives, the payload\narchitecture has been designed to achieve long interrogation time and active\nrotation compensation on a BEC-based atom interferometer. A study of the\nsatellite architecture, including all the subsystems, has been conducted.\nSeveral technical solutions for propulsion and attitude control have been\ninvestigated in order to guarantee optimal operating conditions (limitation of\nmicro-vibrations, maximization of measurement time). A preliminary design of\nthe satellite platform was performed.\n