6533b839fe1ef96bd12a6764
RESEARCH PRODUCT
High-Precision Measurements of the Bound Electron’s Magnetic Moment
Manuel VogelKlaus BlaumWolfgang QuintSven SturmFlorian Köhler-langesGünter Werthsubject
electron magnetic momentPhysicsNuclear and High Energy PhysicsNeutron magnetic momentMagnetic momentAnomalous magnetic dipole momentHighly charged ionhighly charged ionFine-structure constantElectronCondensed Matter Physics01 natural sciencesElectron magnetic dipole momentAtomic and Molecular Physics and Optics010305 fluids & plasmasSpin magnetic moment0103 physical sciencesquantum electrodynamicslcsh:QC770-798lcsh:Nuclear and particle physics. Atomic energy. RadioactivityPräzisionsexperimente - Abteilung BlaumAtomic physics010306 general physicsdescription
Highly charged ions represent environments that allow to study precisely one or more bound electrons subjected to unsurpassed electromagnetic fields. Under such conditions, the magnetic moment (g-factor) of a bound electron changes significantly, to a large extent due to contributions from quantum electrodynamics. We present three Penning-trap experiments, which allow to measure magnetic moments with ppb precision and better, serving as stringent tests of corresponding calculations, and also yielding access to fundamental quantities like the fine structure constant α and the atomic mass of the electron. Additionally, the bound electrons can be used as sensitive probes for properties of the ionic nuclei. We summarize the measurements performed so far, discuss their significance, and give a detailed account of the experimental setups, procedures and the foreseen measurements.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-01-21 | Atoms |