Rubidium atoms on China’s Tiangong space station fell with the same acceleration, upholding a cornerstone of Einstein’s general theory of relativity.

Scientists at the University of Ulm, the University of Oxford, and the Ben-Gurion University of the Negev collaborated to conduct experiments that for the first time showed that a falling quantum ...

A cloud of ultracold atoms has provided a new experimental connection between two theories that physicists still cannot fully reconcile. Researchers have directly measured the quantum phase acquired ...