Observation of individual spin quantum transitions of a single antiproton

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Smorra, C.; Mooser, A.; Besirli, M.; Bohman, M.; Borchert, M.J. et al.: Observation of individual spin quantum transitions of a single antiproton. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 769 (2017), S. 1-6. DOI: https://doi.org/10.1016/j.physletb.2017.03.024

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We report on the detection of individual spin quantum transitions of a single trapped antiproton in a Penning trap. The spin-state determination, which is based on the unambiguous detection of axial frequency shifts in presence of a strong magnetic bottle, reaches a fidelity of 92.1%. Spin-state initialization with >99.9% fidelity and an average initialization time of 24 min are demonstrated. This is a major step towards an antiproton magnetic moment measurement with a relative uncertainty on the part-per-billion level.
License of this version: CC BY 4.0 Unported
Document Type: Text
Publishing status: publishedVersion
Issue Date: 2017
Appears in Collections:Fakultät für Mathematik und Physik

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2 image of flag of France France 3 2.29%
3 image of flag of China China 2 1.53%
4 image of flag of United States United States 1 0.76%
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