Strong correlations and formation of "hot spots" in the quasi-one-dimensional Hubbard model at weak coupling
| dc.creator | Rohe, D. | |
| dc.creator | Georges, A. | |
| dc.date | 2006-08-01 | |
| dc.date | 2006-08-03 | |
| dc.date.accessioned | 2026-07-07T07:19:29Z | |
| dc.date.available | 2026-07-07T07:19:29Z | |
| dc.description | We study the anisotropic two-dimensional Hubbard model at and near half filling within a functional renormalization group method, focusing on the structure of momentum-dependent correlations which grow strongly upon approaching a critical temperature from above. We find that a finite nearest-neighbor interchain hopping is not sufficient to introduce a substantial momentum dependence of single-particle properties along the Fermi surface. However, when a sufficiently large second-nearest neighbor inter-chain hopping is introduced, the system is frustrated and we observe the appearance of so-called "hot spots", specific points on the Fermi surface around which scattering becomes particularly strong. We compare our results with other studies on quasi-one-dimensional systems. | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0608032 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0608032 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/114645 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Strong correlations and formation of "hot spots" in the quasi-one-dimensional Hubbard model at weak coupling | |
| dc.type | text |