Strongly correlated electrons: Dynamical vertex renormalization
| dc.creator | Janis, Vaclav | |
| dc.date | 1998-10-15 | |
| dc.date.accessioned | 2026-07-07T03:11:44Z | |
| dc.date.available | 2026-07-07T03:11:44Z | |
| dc.description | Single-band Hubbard model at criticality of the metal-insulator transition is studied using approximations derived from parquet theory. It is argued that only the electron-hole and interaction two-particle channels in the parquet algebra are relevant. A scheme is proposed how to reduce the parquet equations to a manageable form the complexity of which is comparable with single-channel approximations such as the renormalized RPA. The newly derived approximation, however, contains dynamical vertex corrections, remains self-consistent at the two-particle level and allows only for integrable singularities. A qualitatively new approach for studying two-particle singularities at zero temperature is obtained. | |
| dc.description | 13 pages, 4 EPS figures; International Workshop on Electron Correlations and Materials Properties, Crete, Greece, June 28 - July 3, 1998 | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9810175 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9810175 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/28686 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Strongly correlated electrons: Dynamical vertex renormalization | |
| dc.type | text |