QED corrections to the dynamic polarizability

M. Haas, U. D. Jentschura, C. H. Keitel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In a relatively weak laser field, atoms interacting with one-photon off-resonant laser fields are dynamically polarized. This perturbation manifests itself in a shift of the atomic energy levels called the "dynamic Stark effect" or "AC-Stark effect", which is intensity dependent. The AC-Stark coefficients are therefore of particular importance for high-precision spectroscopy experiments which rely on two-photon processes like the 1S-2S transition in hydrogen, hydrogenlike ions, antihydrogen or similar composite matter-antimatter systems. In addition, the imaginary part of the dynamic polarizability determines the resonant one-photon ionization width for the excited level. Up to now, the dynamic polarizability has been investigated only up to the level of relativistic corrections. In this contribution, we present results for several experimentally relevant transitions in hydrogenlike systems and the leading-order QED radiative corrections.

Original languageEnglish
Title of host publicationLOW ENERGY ANTIPROTON PHYSICS
Subtitle of host publicationEighth International Conference on Low Energy Antiproton Physics, LEAP'05
Pages317-320
Number of pages4
DOIs
Publication statusPublished - Oct 26 2005
EventLOW ENERGY ANTIPROTON PHYSICS: 8th International Conference on Low Energy Antiproton Physics, LEAP'05 - Bonn, Germany
Duration: May 16 2005May 22 2005

Publication series

NameAIP Conference Proceedings
Volume796
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherLOW ENERGY ANTIPROTON PHYSICS: 8th International Conference on Low Energy Antiproton Physics, LEAP'05
CountryGermany
CityBonn
Period5/16/055/22/05

Keywords

  • AC-Stark effect
  • Precision spectroscopy
  • QED effects

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Haas, M., Jentschura, U. D., & Keitel, C. H. (2005). QED corrections to the dynamic polarizability. In LOW ENERGY ANTIPROTON PHYSICS: Eighth International Conference on Low Energy Antiproton Physics, LEAP'05 (pp. 317-320). (AIP Conference Proceedings; Vol. 796). https://doi.org/10.1063/1.2130187