Regular Article – Cold Matter and Quantum Gases
Quantum interference measurement of the free fall of anti-hydrogen
Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-PSL, Collège de France, 4 Place Jussieu, 75005, Paris, France
2 Conservatoire National des Arts et Métiers, 292 Rue Saint Martin, 75003, Paris, France
Accepted: 10 October 2022
Published online: 5 November 2022
We analyze a quantum measurement designed to improve the accuracy for the free-fall acceleration of anti-hydrogen in the GBAR experiment. Including the effect of photo-detachment recoil in the analysis and developing a full quantum analysis of anti-matter wave propagation, we show that the accuracy is improved by approximately three orders of magnitude with respect to the classical timing technique planned for the current experiment.
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