An experimental test of the weak equivalence principle for antihydrogen at the 
future FLAIR facility

Blaum, Klaus; Raizen, Mark G.; Quint, Wolfgang

doi:10.1142/S2010194514602646

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An experimental test of the weak equivalence principle for antihydrogen at the future FLAIR facility

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Blaum, Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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http://www.worldscientific.com/doi/pdf/10.1142/S2010194514602646
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Citation

Blaum, K., Raizen, M. G., & Quint, W. (2014). An experimental test of the weak equivalence principle for antihydrogen at the future FLAIR facility. International Journal of Modern Physics Conference Series, 30: 1460264. doi:10.1142/S2010194514602646.

Cite as: https://hdl.handle.net/11858/00-001M-0000-001A-152D-1

Abstract

We present new experimental ideas to investigate the gravitational interaction of antihydrogen. The experiment can first be performed in an off-line mirror measurement on hydrogen atoms, as a testing ground for our methods, before the implementation with antihydrogen atoms. A beam of hydrogen atoms is formed by launching a cold beam of protons through a cloud of trapped electrons in a nested Penning trap arrangement. In the next step, the atoms are stopped in a series of pulsed electromagnetic coils — so-called atomic coilgun. The stopped atoms are confined in a magnetic quadrupole trap and cooled by single-photon laser cooling. We intend to employ the method of Raman interferometry to study the gravitational interaction of atomic hydrogen — and later on antihydrogen at the FLAIR facility — with high sensitivity.