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Renormalization scheme invariant perturbative approach as an alternative to the conventional perturbation theory

โœ Scribed by S.J. Maximov; V.I. Vovk


Book ID
113352801
Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
256 KB
Volume
199
Category
Article
ISSN
0370-2693

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An alternative expression for the pertur
โœ Gustavo E. Scuseria ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 551 KB

The Brueckner model, which is a version of coupled-cluster theory where orbitals are optimized to yield zero single-excitation amplitudes (T,=O), naturally leads to the definition of an effective one-particle Hamiltonian F (or Brueckner Hamiltonian) which effectively accounts for correlation effects