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Nonresonant corrections to the 1s-2s two-photon resonance for the hydrogen atom

L. N. Labzowsky·D. A. Solovyev·G. Plunien·G. Soff
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Abstract

The nonresonant (NR) corrections are estimated for the most accurately measured two-photon transition 1s-2s in the hydrogen atom. These corrections depend on the measurement process and set a limit for the accuracy of atomic frequency measurements. With the measurement process adopted in the modern experiments the NR contribution for 1s-2s transition energy can reach 10^{-3} Hz while the experimental inaccuracy is quoted to be +/- 46 Hz.

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L. N. Labzowsky, D. A. Solovyev, G. Plunien, G. Soff. 2002-01-30. Nonresonant corrections to the 1s-2s two-photon resonance for the hydrogen atom. https://doi.org/10.1103/physreva.65.054502

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