GBAR - ongoing R&D activities

Gravitational Behaviour of Antihydrogen at Rest

The most advanced ongoing activities are detailed on pages below, while the other experimental steps are being prepared at Grenoble, Mainz, Paris, Swansea, Swierk, Tokyo and Zurich. There are also a few theoreticians interested in improving particle trapping, studying positron and positronium interactions, and in the quantum reflection with antimatter.