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

Grumer, Jon LU ; Brage, Tomas LU ; Andersson, Martin LU ; Li, Jiguang; Jonsson, Per; Li, Wenxian; Yang, Yang; Hutton, Roger and Zou, Yaming (2014) In Physica Scripta 89(11).
Abstract
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... (More)
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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
atomic structure, unexpected transitions, magnetic-field effects, angular distribution of radiation, hyperfine effects
in
Physica Scripta
volume
89
issue
11
publisher
Institute of Physics Publishing Ltd.
external identifiers
  • wos:000346656500002
  • scopus:84908540237
ISSN
0031-8949
DOI
10.1088/0031-8949/89/11/114002
language
English
LU publication?
yes
id
6e66594e-64d8-41c1-b5f5-588893c0207e (old id 4941485)
date added to LUP
2015-01-27 16:27:39
date last changed
2017-11-12 03:08:59
@article{6e66594e-64d8-41c1-b5f5-588893c0207e,
  abstract     = {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.},
  articleno    = {114002},
  author       = {Grumer, Jon and Brage, Tomas and Andersson, Martin and Li, Jiguang and Jonsson, Per and Li, Wenxian and Yang, Yang and Hutton, Roger and Zou, Yaming},
  issn         = {0031-8949},
  keyword      = {atomic structure,unexpected transitions,magnetic-field effects,angular distribution of radiation,hyperfine effects},
  language     = {eng},
  number       = {11},
  publisher    = {Institute of Physics Publishing Ltd.},
  series       = {Physica Scripta},
  title        = {Unexpected transitions induced by spin-dependent, hyperfine and external magnetic-field interactions},
  url          = {http://dx.doi.org/10.1088/0031-8949/89/11/114002},
  volume       = {89},
  year         = {2014},
}