Observation of Spin Flips with a Single Trapped Proton
S. Ulmer (1,2, 3), C.C. Rodegheri (1, 2), K. Blaum (1, 3), H., Kracke (2, 4), A. Mooser (2, 4), W. Quint (3, 5), J. Walz (2, 4), ((1) Max-Planck-Institut fuer Kernphysik, Germany, (2) Institut fuer Physik,, Johannes Gutenberg-Universitaet, Germany
TL;DR
This paper reports the first observation of radio-frequency induced spin flips in a single trapped proton, using the continuous Stern-Gerlach effect in a cryogenic Penning trap, advancing high-precision magnetic moment measurements.
Contribution
It demonstrates the detection of proton spin quantum jumps via the Stern-Gerlach effect, marking a significant step toward precise proton magnetic moment measurements and symmetry tests.
Findings
First observation of proton spin flips in a single trap
Detection of quantum jumps via Stern-Gerlach effect
Progress towards high-precision magnetic moment measurement
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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