A simplification in the use of third-order perturbation theory in molecular spectroscopy
โ Scribed by John H. Carpenter; David H. Whiffen
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 228 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0022-2852
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Second-order Perrurb3tion theory is used fo calculate spherhi ixmnonic coefficients oi the rtn@nr pair correlation functiong(rwIw~) for a Iiquid in \ihich the molecules inreracr xxith ;\ pair porsnrial that is. the sum ot LennardJones and qwdrupotc-qu;ldrupoIr parts\_ The r&or) is cumpsred with both
Given a basis, the matrix represntation of a hermitian operator 8 = 6(O) + 6") is partitioned 0 =O(")'+O(\*y such that@') and@'r have the same eigenvectors and the euclidenn norm ofo(l)' IS a minimum. This splitting cc\:responds to the s&called Epstein-Nesbet partition in perturbation theory. The p