𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Perturbation theory by the moment method applied to coupled anharmonic oscillators

✍ Scribed by F.M Fernández; J.F Ogilvie


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
431 KB
Volume
178
Category
Article
ISSN
0375-9601

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Renormalized perturbation theory by the
✍ Marcelo D. Radicioni; Carlos G. Diaz; Francisco M. Fernández 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 183 KB

We apply renormalized perturbation theory by the moment method to an anharmonic oscillator in two dimensions with a perturbation that couples unperturbed degenerate states. The method leads to simple recurrence relations for the perturbation corrections to the energy and moments of the eigenfunction

Application of the effective harmonic os
✍ V.P. Spiridonov; V.S. Lyutsarev; B.S. Butayev 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 696 KB

Uy treatingthe Hamiltonian for coupled oscillators with poiynornial anharmonicity by tbc Gibbs-Uogoliubov incqunlity, the effective harmonic oscillator (EHO) method is developed rend applied to computing the thermrtl averages for polyatomic molecules. Practical utility is demonstrated with calculati

Accuracy of the three-body fragment mole
✍ Dmitri G. Fedorov; Kazuya Ishimura; Toyokazu Ishida; Kazuo Kitaura; Peter Pulay; 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 833 KB

## Abstract The three‐body energy expansion in the fragment molecular orbital method (FMO) was applied to the 2nd order Møller–Plesset theory (MP2). The accuracy of both the two and three‐body expansions was determined for water clusters, alanine __n__‐mers (α‐helices and β‐strands) and one synthet

Quantization of the relativistic harmoni
✍ R.H. Penfield; H. Zatzkis 📂 Article 📅 1957 🏛 Elsevier Science 🌐 English ⚖ 416 KB

The relativistic effects on the quantization of the harmonic oscillator are determined from a perturbation calculation using matrices obtained in the nonrelativistic case. One finds that the energy levels are no longer evenly spaced although the usual transition rules still hold. When a system of