We present the formalism for the treatment of several states of the same Ž . symmetry in basis-set reduction BSR , a form of second-order Brillouin᎐Wigner multireference perturbation theory, which incorporates the first-order correction of the primary-space wave function with respect to its orthogon
✦ LIBER ✦
Brillouin-Wigner and Feenberg perturbation methods in many-body theory
✍ Scribed by H. Keiter; S. Kilić
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 621 KB
- Volume
- 508
- Category
- Article
- ISSN
- 0003-3804
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Excitation energies in Brillouin–Wigner-
✍
W. Wenzel
📂
Article
📅
1998
🏛
John Wiley and Sons
🌐
English
⚖ 288 KB
Sixth-order many-body perturbation theor
✍
Zhi He; Dieter Cremer
📂
Article
📅
1996
🏛
John Wiley and Sons
🌐
English
⚖ 943 KB
A comparison of sixth-order Mdler-Plesset perturbation energies (MP6) with the corresponding full configuration interaction (FCI) energies shows that in the case of equilibrium geometries MP6 values differ by just 1.7 mhartree. MP6 correlation energies turn out to be important for systems with oscil