Renormalized vs unrenormalized perturbation-theoretical approaches to the Mott transition

Renormalized vs unrenormalized perturbation-theoretical approaches to the Mott transition

Mod. Phys. Lett. B 12, 915 (1998). I employ an exactly soluble toy model to investigate why unrenormalized perturbation theory works better than fully self-consistent approaches in describing the correlation-driven metal-insulator transition.

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1. Verfasser: Lange, Ekkehard
Format: Artikel
Sprache:eng
Schlagworte:
Physics - Strongly Correlated Electrons
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Zusammenfassung:Mod. Phys. Lett. B 12, 915 (1998). I employ an exactly soluble toy model to investigate why unrenormalized perturbation theory works better than fully self-consistent approaches in describing the correlation-driven metal-insulator transition.
DOI:10.48550/arxiv.cond-mat/9810208