The Mott insulator - 10th order perturbation theory extended to infinite order using QMC
| dc.creator | Blümer, N. | |
| dc.creator | Kalinowski, E. | |
| dc.date | 2004-04-23 | |
| dc.date | 2004-12-03 | |
| dc.date.accessioned | 2026-07-07T02:57:47Z | |
| dc.date.available | 2026-07-07T02:57:47Z | |
| dc.description | We present a new method, based on the combination of analytical and numerical techniques within the framework of the dynamical mean-field theory (DMFT). Building upon numerically exact results obtained in an improved quantum Monte Carlo (QMC) scheme, 10th order strong-coupling perturbation theory for the Hubbard model on the Bethe lattice is extrapolated to infinite order. We obtain continuous estimates of energy E and double occupancy D with unprecedented precision O(10^{-5}) for the Mott insulator above its stability edge U_{c1}=4.78 as well as critical exponents. The relevance for recent experiments on Cr-doped V_2O_3 is pointed out. | |
| dc.description | 4 pages, 5 figures. Significant changes in introduction and summary; experimental reference added; Figs. 1 and 3 modified | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0404568 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0404568 | |
| dc.identifier | Phys. Rev. B 71, 195102 (2005) | |
| dc.identifier | doi:10.1103/PhysRevB.71.195102 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/23808 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | The Mott insulator - 10th order perturbation theory extended to infinite order using QMC | |
| dc.type | text |