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arXiv · 1104.1206

Observation of Spin Flips with a Single Trapped Proton

S. Ulmer·C. C. Rodegheri·K. Blaum·H. Kracke·A. Mooser·W. Quint·J. Walz
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Abstract

Radio-frequency induced spin transitions of one individual proton are observed for the first time. The spin quantum jumps are detected via the continuous Stern-Gerlach effect, which is used in an experiment with a single proton stored in a cryogenic Penning trap. This is an important milestone towards a direct high-precision measurement of the magnetic moment of the proton and a new test of the matter-antimatter symmetry in the baryon sector.

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S. Ulmer, C. C. Rodegheri, K. Blaum, H. Kracke, A. Mooser, W. Quint, J. Walz. 2011-05-03. Observation of Spin Flips with a Single Trapped Proton. https://doi.org/10.1103/physrevlett.106.253001

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