Ultracold atom interferometry in space

Abstract Bose-Einstein condensates (BECs) in free fall constitute a promising source for space-borne interferometry. Indeed, BECs enjoy slowly expanding wave function, display large spatial coherence and can be engineered probed by optical techniques. Here we explore matter-wave fringes of multiple spinor components BEC released employing light-pulses to drive Bragg processes induce phase imprinting on sounding rocket. The prevailing microgravity played crucial role the observation these interferences which not only reveal but also allow us measure differential forces. Our work marks beginning interferometry space with future applications fundamental physics, navigation earth observation.