We report on the measurement of the g-factor of the electron bound in an atomic ion. A single hydrogenic ion is stored in a Penning trap. The electronic spin state of the ion is monitored via the continuous Stern-Gerlach effect in a quantum non-demolition measurement. Quantum jumps between the two spin states (spin up and spin down) are induced by a microwave field at the spin precession frequency of the bound electron. The g-factor of the bound electron is obtained by varying the microwave frequency and counting the number of spin flips for a fixed time interval. Applications of the continuous Stern-Gerlach effect include high-accuracy tests of bound-state quantum electrodynamics (QED), the measurement of the atomic mass of the electron, the determination of the fine structure constant α, and the measurement of nuclear g-factors.
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30 January 2001
ATOMIC PHYSICS 17: XVII International Conference on Atomic Physics; ICAP 2000
4-9 June 2000
Florence, Itlay
Research Article|
January 30 2001
The g-factor of the bound electron in hydrogenic ions
Wolfgang Quint;
Wolfgang Quint
Gesellschaft für Schwerionenforschung, Planckstr. 1, D-64291 Darmstadt, Germany
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AIP Conf. Proc. 551, 269–281 (2001)
Citation
Wolfgang Quint, g-Factor Collaboration; The g-factor of the bound electron in hydrogenic ions. AIP Conf. Proc. 30 January 2001; 551 (1): 269–281. https://doi.org/10.1063/1.1354354
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