Perturbation Method beyond the Variational Gaussian Approximation: The Liouville-Neumann Approach

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dc.creatorBak, Dongsu
dc.creatorKim, Sang Pyo
dc.creatorKim, Sung Ku
dc.creatorSoh, Kwang-Sup
dc.creatorYee, Jae Hyung
dc.date1998-08-01
dc.date1999-02-11
dc.date.accessioned2026-07-07T11:36:15Z
dc.date.available2026-07-07T11:36:15Z
dc.descriptionWe have developed a variational perturbation theory based on the Liouville-Neumann equation, which enables one to systematically compute the perturbative correction terms to the variationally determined wave functions of the time-dependent systems. We then apply the method to the time-independent anharmonic oscillator, and show that the results agree with those of other variational perturbation theories. We also show that the system has an interesting algebraic structure at the first order correction level.
dc.description12 pages, no figures, a few typographical errors are corrected
dc.identifierhttps://arxiv.org/abs/hep-th/9808001
dc.identifierhttp://arxiv.org/abs/hep-th/9808001
dc.identifierJ.KoreanPhys.Soc.37:168-176,2000
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/198859
dc.subjectHigh Energy Physics - Theory
dc.titlePerturbation Method beyond the Variational Gaussian Approximation: The Liouville-Neumann Approach
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