Self-consistent Conserving Theory for Quantum Impurity Systems: Renormalization Group Analysis

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dc.creatorKirchner, Stefan
dc.creatorKroha, Johann
dc.date2002-02-20
dc.date.accessioned2026-07-07T02:44:29Z
dc.date.available2026-07-07T02:44:29Z
dc.descriptionWe review the diagrammatic, conserving theory for quantum impurities with strong on-site repulsion. The method is based on auxiliary particle technique, where Wick's theorem is valid, which opens up the possibility for generalizations to more complicated situations. An analysis in terms of the perturbative renormalization group (RG) shows that on the level of the Conserving T--matrix Approximation the theory correctly describes the RG flow, including the non-scaling of potential scattering terms and the correct Kondo temperature.
dc.description17 pages, 7 figures, dedicated to Prof. Peter Wölfle on the occasion of his 60th birthday
dc.identifierhttps://arxiv.org/abs/cond-mat/0202351
dc.identifierhttp://arxiv.org/abs/cond-mat/0202351
dc.identifierJ. Low Temp. Phys. 126, 1233 (2002)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/18939
dc.subjectStrongly Correlated Electrons
dc.subjectMesoscale and Nanoscale Physics
dc.titleSelf-consistent Conserving Theory for Quantum Impurity Systems: Renormalization Group Analysis
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