Some Causes of Resonant Frequency Shifts in Atomic Beam Machines. II. The Effect of Slow Frequency Modulation on the Ramsey Line Shape

摘要

The effect of slow frequency modulation of the exciting radiation on the Ramsey line shape observed in an atomic beam experiment is formulated theoretically. It is shown that the presence of second harmonic in the modulation can introduce measurable frequency shifts, whether observed directly or with a servo system.