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Quasipotential in the fourth order of perturbation theory and infrared singularities

✍ Scribed by N. A. Boikova; V. V. Dvoeglazov; Yu. N. Tyukhtyaev


Book ID
112458572
Publisher
SP MAIK Nauka/Interperiodica
Year
1991
Tongue
English
Weight
540 KB
Volume
89
Category
Article
ISSN
0040-5779

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📜 SIMILAR VOLUMES


Approximate fourth-order perturbation th
✍ R. Krishnan; J. A. Pople 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 English ⚖ 418 KB

## Abstract An approximate fourth‐order expression for the electron correlation energy in the Møller–Plesset perturbation scheme is proposed. It takes into account all the contributions to the fourthorder energy neglecting only those of the triple‐substituted determinants. It is size consistent and