Philippe Bouyer and co-workers in France performed a range of impressive experiments with an atom interferometer
in free flight, onboard an Airbus aircraft making "micro-gravity jumps". These experiments successfully demonstrate
that when atoms are sufficiently cooled and controlled, their wave properties can be used to perform interferometry
in a way analogous to standard interferometry with light. This moves the field closer to the implementation of a
range of sensors for e.g. gravity, rotation and inertia with unprecedented accuracy. Such devices will be potentially
very useful in satellites and in space missions.
To read the full paper by Philippe Bouyer et al. on "Light-pulse atom interferometry in microgravity" click