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Optimized perturbation methods for the free energy of the anharmonic oscillator

✍ Scribed by Kostas Vlachos; Anna Okopińska


Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
339 KB
Volume
186
Category
Article
ISSN
0375-9601

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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