Double resonance frequency shift in a hydrogen maser

Details Double resonance frequency shift in a hydrogen maser Double resonance frequency shift in a hydrogen maser

2000-07-17

arxiv.org/abs/physics/0007056v1

Physics

Atomic Physics

11 pages, 4 figures; submitted to PRA

Scientific paper

10.1103/PhysRevA.62.063405

We use the dressed atom formalism to calculate the frequency shift in a hydrogen maser induced by applied radiation near the Zeeman frequency, and find excellent agreement with a previous calculation made in the bare atom basis. The maser oscillates on the Delta_F = 1, Delta_m_F = 0 hyperfine transition, while the applied field is swept through the F = 1, Delta_m_F = \pm 1 Zeeman resonance. We determine the effect of the applied field on the Zeeman levels using the dressed atom picture, and then calculate the maser frequency shift by coupling the dressed states to the microwave cavity. Qualitatively, the dressed-atom analysis gives a new and simpler physical interpretation of this double resonance process, which has applications in precision hydrogen Zeeman spectroscopy, e.g., in fundamental symmetry tests.

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