Conserving approximations vs Two-Particle Self-Consistent Approach

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dc.creatorAllen, S.
dc.creatorTremblay, A. -M. S.
dc.creatorVilk, Y. M.
dc.date2001-10-07
dc.date2003-10-20
dc.date.accessioned2026-07-07T02:42:57Z
dc.date.available2026-07-07T02:42:57Z
dc.descriptionThe conserving approximation scheme to many-body problems was developed by Kadanoff and Baym using the functional-derivative approach. Another approach for the Hubbard model also satisfies conservation laws, but in addition it satisfies the Pauli principle and a number of sum rules. A concise formal derivation of that approach, using functional derivatives, is given in this conference paper to highlight formal analogies and differences with conserving approximations.
dc.descriptionRevTex, corrected typos, updated references, as published version
dc.identifierhttps://arxiv.org/abs/cond-mat/0110130
dc.identifierhttp://arxiv.org/abs/cond-mat/0110130
dc.identifierin "Theoretical Methods for Strongly Correlated Electrons", p. 341, Eds. David Sénéchal, André-Marie Tremblay, Claude Bourbonnais (Springer-Verlag, New-York, 2004)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/18351
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleConserving approximations vs Two-Particle Self-Consistent Approach
dc.typetext

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