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Unexpected transitions induced by spin-dependent, hyperfine and external magnetic-field interactions

In English

Författare

  • Jon Grumer
  • Tomas Brage
  • Martin Andersson
  • Jiguang Li
  • Per Jonsson
  • Wenxian Li
  • Yang Yang
  • Roger Hutton
  • Yaming Zou

Summary, in English

Unexpected transitions are induced by weaker interactions not included in the gross structure model of the ion under investigation. We discuss different examples of such decay channels, starting with relativistic spin-induced transitions. These represented an important field of study a few decades ago, and we illustrate how some challenging cases can be treated very accurately with today's computational techniques, while close degeneracy sometimes still prevents ab initio methods from obtaining accurate results. For hyperfine induced transitions we review some recent results and discuss remaining challenges for experiment and theory. Finally, we discuss the newly opened field of accurate calculations for transitions induced by an external magnetic field and point to some examples of where these are accessible for experimental tests.

Publiceringsår

2014

Språk

Engelska

Publikation/Tidskrift/Serie

Physica Scripta

Volym

89

Issue

11

Dokumenttyp

Artikel i tidskrift

Förlag

IOP Publishing

Ämne

  • Condensed Matter Physics

Nyckelord

  • atomic structure
  • unexpected transitions
  • magnetic-field effects
  • angular distribution of radiation
  • hyperfine effects

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0031-8949