Double-resonance g-factor measurements by quantum jump spectroscopy
W. Quint, B. Nikoobakht*, U. D. Jentschura*
Gesellschaft für Schwerionenforschung (GSI), 64291 Darmstadt, Germany
*Max-Planck-Institut für Kernphysik, 69029 Heidelberg, Germany
and Institut für Theoretische Physik, Universität Heidelberg, 69120 Heidelberg, Germany
PACS: 06.20.Jr, 12.20.Ds, 13.40.Em, 14.60.Cd, 31.15.-p, 31.30.Jv
Abstract
With the advent of high-precision frequency combs that can bridge
large frequency intervals, new possibilities have opened up for
the laser spectroscopy of atomic transitions. Here, we show that
laser spectroscopic techniques can also be used to determine the
ground-state g- factor of a bound electron: Our proposal is based
on a double-resonance experiment, where the spin state of a
ground-state electron is constantly being read out by laser
excitation to the atomic L shell, while the spin flip transitions
are being induced simultaneously by a resonant microwave field,
leading to a detection of the quantum jumps between the
ground-state Zeeman sublevels. The magnetic moments of electrons
in light hydrogen-like ions could thus be measured with advanced
laser technology. Corresponding theoretical predictions are also
presented.