Why Self-Consistent Diagrammatic Perturbation Theory is `just' Perturbation Theory

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dc.creatorSetlur, Girish S.
dc.date1999-08-19
dc.date.accessioned2026-07-07T03:14:16Z
dc.date.available2026-07-07T03:14:16Z
dc.descriptionIn this short write-up we argue that self-consistent diagrammatic perturbation theory(i.e. Feynman diagrams) for the one-particle Green function is unable to capture some important qualitative features no matter how self-consistently the Green functions are obtained. This write-up is intended to highlight the short-comings of perturbation theory and also tout the advantages of the sea-boson technique(hep-th/9706006).
dc.description3 pages, RevTex
dc.identifierhttps://arxiv.org/abs/cond-mat/9908269
dc.identifierhttp://arxiv.org/abs/cond-mat/9908269
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/29610
dc.subjectCondensed Matter
dc.titleWhy Self-Consistent Diagrammatic Perturbation Theory is `just' Perturbation Theory
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