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Accurate numerical JWKB calculations for the quartic oscillator. (English) Zbl 1381.82005

Summary: Accurate results for WKB and quantum mechanical approaches to the quartic oscillator are obtained by renormalized perturbation theory. The WKB estimate of \(\psi^{2}(0)\) agrees closely with that obtained using a finite difference method previously published in this journal.

MSC:

82B10 Quantum equilibrium statistical mechanics (general)
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References:

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