g-factor of a bound electron
g-factor of a bound electron g-factor of a bound electron
Experiment Results and precision GSI experimental setup Electron beam produces hydrogen-like C 5+ ions via collisional ionisation All charged particles are then removed except for a single C 5+ ion The Penning trap is located in the center of the copper cylinder Cryopumping reduces pressure below 10 −16 mbar Ion Stroescu (Uni Heidelberg) g-factor of a bound electron January 11, 2008 19 / 32
Experiment Results and precision Double-trap measuring technique Resonant excitation at 104 GHz of transition between the two spin states in the precision trap (4 Telsa homogeneous magnetic field) Measurement of spin-flip transitions in the analysis trap (inhomogeneous magnetic field) Amplitudes of the three motions are reduced below 50 micrometer by cooling to a temperature T = 4 K Ion Stroescu (Uni Heidelberg) g-factor of a bound electron January 11, 2008 20 / 32
- Page 1 and 2: g-factor of a bound electron Ion St
- Page 3 and 4: Outline History and motivation 1 Hi
- Page 5 and 6: History and motivation Quantum elec
- Page 7 and 8: Outline Theory of the free electron
- Page 9 and 10: Theory of the free electron Definit
- Page 11 and 12: Theory of the free electron Larmor
- Page 13 and 14: Theory of the free electron Penning
- Page 15 and 16: Theory of the free electron QED con
- Page 17 and 18: Theory of the bound electron g-fact
- Page 19: Outline Experiment 1 History and mo
- Page 23 and 24: Experiment Quantum jump spectroscop
- Page 25 and 26: Experiment Results and precision g-
- Page 27 and 28: Experiment Deducing the electron’
- Page 29 and 30: Outlook: New experiments and future
- Page 31 and 32: Outlook: New experiments and future
- Page 33 and 34: Conclusion Conclusion The g-factor
- Page 35 and 36: Conclusion Conclusion The g-factor
- Page 37: References References J. Verdú, S.
Experiment<br />
Results and precision<br />
Double-trap measuring technique<br />
Resonant excitation at 104 GHz<br />
<strong>of</strong> transition between the two<br />
spin states in the precision trap<br />
(4 Telsa homogeneous magnetic<br />
field)<br />
Measurement <strong>of</strong> spin-flip<br />
transitions in the analysis trap<br />
(inhomogeneous magnetic field)<br />
Amplitudes <strong>of</strong> the three motions<br />
are reduced below 50<br />
micrometer by cooling to a<br />
temperature T = 4 K<br />
Ion Stroescu (Uni Heidelberg) g-<strong>factor</strong> <strong>of</strong> a <strong>bound</strong> <strong>electron</strong> January 11, 2008 20 / 32
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