Heidelberg 2015 – wissenschaftliches Programm
A 7.1: Poster
Montag, 23. März 2015, 17:00–19:00, C/Foyer
Testing equivalence principle for antimatter through dynamics in gravitational field — •Oliver Köhn1 and Giovanni Manfredi2 — 1Universität des Saarlandes, Saarbrücken, Deutschland — 2Centre National de la Recherche Scientifique, Strasbourg, Frankreich
We propose a test for the equivalence principle for antimatter. We consider the dynamics of a particle bouncing on a solid surface and predict an autoresonance phenomenon suitable for testing the equivalence principle. With the surface oscillating independently of the particle position, we calculate the bouncing amplitude of the particle as a function of time, and demonstrate a resonance phenomenon in the dynamics of the particle. The amplitude of the bouncing particle depends on its acceleration under the gravity of the earth and would be affected by the difference in the gravitational and inertial masses of the particle. Measurement of the autoresonance phenomenon therefore provides a test for the equivalence principle for antimatter.