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Observation of Spin Flips with a Single Trapped Proton

By S. Ulmer, C. C. Rodegheri, K. Blaum, H. Kracke, A. Mooser, W. Quint and J. Walz

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

Topics: Physics - Atomic Physics
Year: 2011
DOI identifier: 10.1103/PhysRevLett.106.253001
OAI identifier: oai:arXiv.org:1104.1206
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