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  • Lindgren, Ingvar, 1931 (author)
  • Development of many-body perturbation theory
  • 2010
  • In: MOLECULAR PHYSICS. - 0026-8976. ; 108:21-23, s. 2853-2861
  • Research review (peer-reviewed)abstract
    • The development of standard MBPT for single-reference and multi-reference cases is reviewed, and its extension to the relativistic case in the form of the Dirac–Coulomb–Breit (DCB) approximation is described. The latter scheme is non-covariant, and the recent development of a fully covariant MBPT scheme is discussed. This is based upon a new scheme for quantum-electrodynamical (QED) calculations, the covariant-evolution-operator method, which is combined with standard MBPT. This scheme is fully compatible with the relativistically covariant Bethe–Salpeter equation. Some numerical results of the new scheme are given.
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Type of publication
research review (1)
Type of content
peer-reviewed (1)
Author/Editor
Lindgren, Ingvar, 19 ... (1)
University
University of Gothenburg (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2010 (1)

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