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Reduced-density-matrix theory: The electron-pair approximation

✍ Scribed by Gene P. Barnett

Publisher
Springer
Year
1967
Tongue
English
Weight
510 KB
Volume
7
Category
Article
ISSN
1432-2234

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πŸ“œ SIMILAR VOLUMES

Reduced-density-matrix theory and algebr
Reduced-density-matrix theory and algebraic structures
✍ Eugene S. Kryachko πŸ“‚ Article πŸ“… 1978 πŸ› John Wiley and Sons 🌐 English βš– 324 KB

## Abstract A survey of our recent work on algebraic structures and reduced‐density‐matrix theory is presented. Our approach leads to a method of classifying reduced density matrices and generalizes the notion of open and closed shells in many‐body theory.

N-representability of the electron pair
N-representability of the electron pair density
✍ Ernest R. Davidson πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 353 KB

Scaling a one-electron density for M electrons to the correct normalization for N electrons is known to give an N-representable density. Here we show that a similar scaling for the electron pair distribution is generally not N-representable. The two-body r( x,x,; X:x;)