Variational perturbation theory for the ground-state wave function

zbMATH Open0991.81083arXivquant-ph/0105095MaRDI QIDQ2754486

F. Weissbach, A. Pelster

Publication date: 11 November 2001

Full work available at URL: https://arxiv.org/abs/quant-ph/0105095

zbMATH Keywords

density matrixanharmonic oscillatorlow-temperature limitground-state wave functionKleinert's variational perturbation theory

Mathematics Subject Classification ID

Feynman diagrams (81T18) Perturbation theories for operators and differential equations in quantum theory (81Q15)

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