2001/10/31 by Ulrich D. Jentschura, U D Jentschura, Peter J. Mohr +1 · 1 citation
Chemistry · Physics and Astronomy · #Atomic and Molecular Physics #Quantum optics and atomic interactions #Spectroscopy and Laser Applications #physics.atom-ph
paper · pdf · doi:10.1139/p02-019
published as Can.J.Phys. 80 (2002) 633-644 · 13 pages, LaTeX, 3 figures; submitted to Can. J. Phys. (Oct 2001); discussion of one-photon transitions enhanced
arxiv created 2002/02/08 · crossref issued 2002/06/01 · crossref published 2002/06/01 · crossref published-print 2002/06/01 · openalex publication_date 2002/06/01 · crossref created 2002/10/01 · arxiv updated 2009/12/01 · crossref deposited 2025/07/02 · openalex created_date 2025/10/10 · crossref indexed 2026/07/30 · openalex updated_date 2026/07/30
We investigate nonresonant contributions to resonant Rayleigh scattering cross sections of atoms. The problematic nonresonant contributions set a limit to the accuracy to which atomic spectra determine energy levels. We discuss the off-resonance effects in one-photon transitions. We also show that off-resonance contributions for the 1S-2S two-photon transition in atomic hydrogen are negligible at current and projected levels of experimental accuracy. The possibility of a differential measurement for the detection of off-resonance effects in one-photon transitions in atomic hydrogen is discussed.