Phys. Rev. A 65, 054502 (2002) [3 pages]Nonresonant corrections to the 1s-2s two-photon resonance for the hydrogen atomReceived 30 January 2002; published 9 May 2002 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 modern experiments the NR contribution to the 1s-2s transition energy can reach 10-2 Hz, while the experimental inaccuracy is quoted to be ±46 Hz. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.65.054502
DOI:
10.1103/PhysRevA.65.054502
PACS:
31.30.Jv, 12.20.Ds, 06.20.Jr, 31.15.-p
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