Please be informed about the following QSIT Seminar.
With best regards,
Ilona Blatter
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Date: Friday December 17, 2010
Place: HPF G 6
Time: 11:00
Host: Jonathan Home
g-factor measurements on hydrogen-like ions as a test of bound-state QED
Joseba Alonso
Johannes Gutenberg Universität, Mainz, Germany
The precise determination of the anomalous magnetic moment of the electron bound in hydrogen-like ions allows for a stringent test of quantum electrodynamics (QED) in the presence of strong electric fields. g-factor measurements on the electron bound in hydrogen-like ions C5+ and O7+, using single ions confined in a Penning trap, have yielded values in agreement with theory on the ppb level. If the QED calculations are considered correct, the results can in turn be used for a determination of fundamental constants like the electron mass me, the fine structure constant α or nuclear parameters. We report about present developments towards g-factor measurements also in medium-heavy and heavy highly-charged ions.