𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Cluster expansion for the energy of the many-electron atom in the nth order of the perturbation theory

✍ Scribed by Yu.Yu. Dmitriev; V.B. Bochkariov; L.N. Labzovsky; M.N. Zashikhin


Publisher
Elsevier Science
Year
1971
Tongue
English
Weight
206 KB
Volume
11
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis


A clus7er~exponzisn

for the nth orqi c: correcrion fo rhe enqy of a mapy-elecrron atom is derived. A possible ap plic;ltion to the calculaticn of the t&d or&r correction to the energy is considuert.


πŸ“œ SIMILAR VOLUMES


Sixth-order many-body perturbation theor
✍ Zhi He; Dieter Cremer πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 990 KB

The general expression for the sixth-order Msller-Plesset (MP6) energy, E(MP6), has been dissected in the principal part d and the renormalization part 9. Since 2 contains unlinked diagram contributions, which are canceled by corresponding terms of the principal part d, E(MP6) has been derived solel

Diagrammatic formulation of the second-o
✍ AndrΓ©i Zaitsevskii; Renzo Cimiraglia πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 166 KB πŸ‘ 1 views

The second-order multireference perturbation theory employing multiple partitioning of the many-electron Hamiltonian into a zero-order part and a perturbation is formulated in terms of many-body diagrams. The essential difference from the standard diagrammatic technique of Hose and Kaldor concerns t

Variational upper and lower bounds for t
✍ Yu.Yu. Dmitriev; M.S. Yuriev πŸ“‚ Article πŸ“… 1969 πŸ› Elsevier Science 🌐 English βš– 285 KB

The method of the evaluation of the upper and lower bounds of the second-order perturbation of the energy is described. The calculation of upper and lower bounds for the second-order perturbation of the energy in l/Z expansions for two-electron atoms are given.

The structure of HSSi+ as determined by
✍ Eneida G. Lima; Sylvio Canuto πŸ“‚ Article πŸ“… 1988 πŸ› Elsevier Science 🌐 English βš– 299 KB

The rotational constants of HSSi+ and HSiS+ are calculated by fourth-order many-body perturbation theory utilizing a doublezeta plus polarization basis set. The results agree with a previous CI estimate that HSSi+ (bent) is more stable than HSW (linear) and frequencies of rotational lines are predic