A ;small molecule' model is used to demonstrate, by comperison with the exact result, that the method of steepest descents yields an excellent approximation to the sum of states for a collection of independent Morse oscillators. It is then shove that the anharmonicity correction factor due to Haarh
Sum of states for non-separable anharmonic oscillators
β Scribed by Wendell Forst
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 613 KB
- Volume
- 231
- Category
- Article
- ISSN
- 0009-2614
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π SIMILAR VOLUMES
When one or several oscillators are anharmonic, an appropriate procedure is to calculate the set of energy levels of the anlurmonic uscilluturs by the WkB method from a knowledge of them potential energy function and to convolute the results with the smooth \(N(E)\) function calculated for the remai
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