Eur. Phys. J. Special Topics 172, 109-119 (2009)
https://doi.org/10.1140/epjst/e2009-01045-3

Spectroscopy of atomic hydrogen

Laboratoire Kastler Brossel, ENS, CNRS, UPMC, 4 place Jussieu, 75252 Paris Cedex 05, France

Corresponding author: biraben@spectro.jussieu.fr

Abstract

This article presents a review of the most recent theoretical and experimental results in hydrogen. We particularly emphasize the methods used to deduce the Rydberg constant R_∞ and we consider the prospects for future improvements in the precision of R_∞.