Variational Calculation of Effective Classical Potential at T neq 0 to Higher Orders
classification
✦ hep-th
keywords
variationalaccuracyanharmonicapproachapproximationcalculatecalculationclassical
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Using the new variational approach proposed recently for a systematic improvement of the locally harmonic Feynman-Kleinert approximation to path integrals we calculate the partition function of the anharmonic oscillator for all temperatures and coupling strength with high accuracy.
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