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arXiv · 1103.2150

Antihydrogen Gravitational Quantum States

A. Yu. Voronin·P. Froelich·V. V. Nesvizhevsky
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Abstract

We present a theoretical study of the motion of the antihydrogen atom ($\bar{H}$) in the Earth's gravitational field above a material surface. We predict that $\bar{H}$ atom, falling in the Earth's gravitational field above a material surface, would settle in long-living quantum states. We point out a method of measuring the difference in energy of $\bar{H}$ in such states that allow us to apply spectroscopy of gravitational levels based on atom-interferometric principles. We analyze a general feasibility to perform experiments of this kind. We point out that such experiments provide a method of measuring the gravitational force ($Mg$) acting on $\bar{H}$ and they might be of interest in a context of testing the Weak Equivalence Principle for antimatter.

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A. Yu. Voronin, P. Froelich, V. V. Nesvizhevsky. 2011-03-10. Antihydrogen Gravitational Quantum States. https://arxiv.org/abs/1103.2150

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