Correlated quantum sensors to verify General Relativity
A team of French physicians (CNRS, Institut d'Optique Graduate School, Observatoire de Paris, UPMC, Université de Bordeaux), supported by CNES and ESA, publishes a detailed study showing how two different matter waves can allow to test the principle of the universality of free fall using correlated atom interferometers. Beyond this technological « tour de force », this experiment constitutes a first step to explore space-time with quantum objects. At first sight, General Rela
