Effects of configuration interaction on the alignment of beryllium-like ions

A. Surzhykov, U. D. Jentschura, Th Stöhlker, S. Fritzsche

Research output: Contribution to journalArticle


The radiative electron capture into (initially) lithium-like ions is studied within the framework of the density matrix approach. Special attention is paid to the magnetic sublevel population of the residual ionic states which is described by a set of alignment parameters. Detailed calculations of these parameters have been performed for the capture into the 1s2 2s 3d3/2 Jf2 level of high-Z ions along the beryllium isoelectronic sequence. We devote special attention to the modifications in the many-electron case as opposed to singleelectron systems. The electron correlation leads to an enhancement of the alignment, which becomes more pronounced as the nuclear charge decreases and the electron-electron interaction gains in strength as compared to the electron-nucleus interaction.

Original languageEnglish
Article number044
Pages (from-to)211-214
Number of pages4
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - Mar 1 2007

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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