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A new derivation of the generalized Courant-Snyder theory with coupling

✍ Scribed by G. Dattoli; C. Mari; L. Mezi; A. Torre

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
460 KB
Volume
321
Category
Article
ISSN
0168-9002

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πŸ“œ SIMILAR VOLUMES

New derivation and a k-particle generali
New derivation and a k-particle generalization of SCF-type theories
✍ Werner Kutzelnigg πŸ“‚ Article πŸ“… 1980 πŸ› John Wiley and Sons 🌐 English βš– 306 KB

## Abstract A hierarchy of necessary conditions that an exact density matrix of a pure state or an ensemble has to satisfy is derived, namely the hermiticity of certain operators __F__^(__k__)^. For __k__ = 1 this reduces to the well‐known Hartree‐Fock condition. It is then shown that the __k__th s