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Article Dans Une Revue Journal of Physics B: Atomic, Molecular and Optical Physics Année : 2016

Quantum ballistic experiment on antihydrogen fall

Résumé

We study an interferometric approach to measure gravitational mass of antihydrogen. The method consists of preparing a coherent superposition of antihydrogen quantum state localized near a material surface in the gravitational field of the Earth, and then observing the time distribution of annihilation events followed after the free fall of an initially prepared superposition from a given height to the detector plate. We show that a corresponding time distribution is related to the momentum distribution in the initial state that allows its precise measurement. This approach is combined with a method of production of a coherent superposition of gravitational states by inducing a resonant transition using oscillating gradient magnetic field. We estimate an accuracy of measuring the gravitational mass of antihydrogen atom which could be deduced from such a measurement.

Dates et versions

hal-02110609 , version 1 (25-04-2019)

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A. Yu. Voronin, V. V. Nesvizhevsky, G. Dufour, Serge Reynaud. Quantum ballistic experiment on antihydrogen fall. Journal of Physics B: Atomic, Molecular and Optical Physics, 2016, 49, pp.054001. ⟨10.1088/0953-4075/49/5/054001⟩. ⟨hal-02110609⟩
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