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Communication Dans Un Congrès Année : 2013

A spectroscopy approach to measure the gravitational mass of antihydrogen

Résumé

We study a method to induce resonant transitions between antihydrogen ($\bar{H}$) quantum states above a material surface in the gravitational field of the Earth. The method consists of applying a gradient of magnetic field, which is temporally oscillating with the frequency equal to a frequency of transition between gravitational states of antihydrogen. A corresponding resonant change in the spatial density of antihydrogen atoms could be measured as a function of the frequency of applied field. We estimate an accuracy of measuring antihydrogen gravitational states spacing and show how a value of the gravitational mass of the $\bar{H}$ atom could be deduced from such a measurement. We also demonstrate that a method of induced transitions could be combined with a free-fall-time measurement in order to further improve the precision.

Dates et versions

hal-00963781 , version 1 (21-03-2014)

Identifiants

Citer

A. Yu. Voronin, V. V. Nesvizhevsky, G. Dufour, P. Debu, A. Lambrecht, et al.. A spectroscopy approach to measure the gravitational mass of antihydrogen. International Workshop on Antimatter and Gravity, Nov 2013, Bern, Switzerland. pp.1460266, ⟨10.1142/S201019451460266X⟩. ⟨hal-00963781⟩
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