Gaussian, Mean Field and Variational Approximation: the Equivalence

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dc.creatorProdan, E.
dc.date1999-05-26
dc.date.accessioned2026-07-07T06:16:35Z
dc.date.available2026-07-07T06:16:35Z
dc.descriptionWe show the equivalence between the three approximation schemes for self-interacting (1+1)-D scalar field theories. Based on rigorous results of [1, 2], we are able to prove that the Gaussian approximation is very precise for certain limits of coupling constants. The $λϕ^{4}+σϕ^{2}$ model will be used as a concrete application.
dc.description18 pages, no figure
dc.identifierhttps://arxiv.org/abs/quant-ph/9905088
dc.identifierhttp://arxiv.org/abs/quant-ph/9905088
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/94104
dc.subjectQuantum Physics
dc.titleGaussian, Mean Field and Variational Approximation: the Equivalence
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