6533b824fe1ef96bd128083d

RESEARCH PRODUCT

The magnetic moment anomaly of the electron bound in hydrogen-like oxygen16O7 

Wolfgang QuintT. ValenzuelaGünter WerthThomas BeierJ. VerdúManuel VogelH.-j. KlugeS. DjekicHartmut Häffner

subject

PhysicsSpin statesSpin polarizationElectronAtomic physicsZero field splittingCondensed Matter PhysicsSpin (physics)Spin quantum numberElectron magnetic dipole momentAtomic and Molecular Physics and OpticsSpin magnetic moment

description

The measurement of the g-factor of the electron bound in a hydrogen-like ion is a high-accuracy test of the theory of quantum electrodynamics (QED) in strong fields. Here we report on the measurement of the g-factor of the bound electron in hydrogen-like oxygen (16O7+). In our experiment a single highly charged 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. The comparison of our experimental values for the g-factor of the bound electron with the theoretical values shows excellent agreement and confirms the recent non-perturbative QED calculations.

yearjournalcountryeditionlanguage
2003-01-24Journal of Physics B: Atomic, Molecular and Optical Physics
https://doi.org/10.1088/0953-4075/36/3/322