Two-loop bethe logarithms for higher excited S levels

Research output: Contribution to journalArticle

20 Citations (Scopus)


The Two-Loop logarithms for higher excited S levels were investigated. It was observed that the processes mediated by two low-energy photons contributed quite significantly to the energy of hydrogenic S states. It was also observed the approach to the higher excited S states, which in contrast to the 1S and 2S states could decay to P states via the electric-dipole channel. It was found that in addition to the calculation of the excited-states two-loop energy shift, the ambiguity in the energy level definition was also investigated due to squared decay rates.

Original languageEnglish
Article number052108
Pages (from-to)052108-1-052108-13
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number5 A
Publication statusPublished - Nov 1 2004

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Fingerprint Dive into the research topics of 'Two-loop bethe logarithms for higher excited S levels'. Together they form a unique fingerprint.

  • Cite this