Renormalized vs unrenormalized perturbation-theoretical approaches to the Mott transition

Details Renormalized vs unrenormalized perturbation-theoretical approaches to the Mott transition Renormalized vs unrenormalized perturbation-theoretical approaches to the Mott transition

1998-10-17

arxiv.org/abs/cond-mat/9810208v1

Mod. Phys. Lett. B 12, 915 (1998).

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages

Scientific paper

10.1142/S0217984998001050

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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