Pseudogap and antiferromagnetic correlations in the Hubbard model
| dc.creator | Macridin, Alexandru | |
| dc.creator | Jarrell, Mark | |
| dc.creator | Maier, Thomas | |
| dc.creator | Kent, P. R. C. | |
| dc.creator | D'Azevedo, Eduardo | |
| dc.date | 2005-09-07 | |
| dc.date | 2006-03-08 | |
| dc.date.accessioned | 2026-07-07T06:41:42Z | |
| dc.date.available | 2026-07-07T06:41:42Z | |
| dc.description | Using the dynamical cluster approximation and quantum monte carlo we calculate the single-particle spectra of the Hubbard model with next-nearest neighbor hopping $t'$. In the underdoped region, we find that the pseudogap along the zone diagonal in the electron doped systems is due to long range antiferromagnetic correlations. The physics in the proximity of $(0,π)$ is dramatically influenced by $t'$ and determined by the short range correlations. The effect of $t'$ on the low energy ARPES spectra is weak except close to the zone edge. The short range correlations are sufficient to yield a pseudogap signal in the magnetic susceptibility, produce a concomitant gap in the single-particle spectra near $(π,π/2)$ but not necessarily at a location in the proximity of Fermi surface. | |
| dc.description | 5 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0509166 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0509166 | |
| dc.identifier | Phys. Rev. Lett. 97, 036401 (2006) | |
| dc.identifier | doi:10.1103/PhysRevLett.97.036401 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/101767 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Pseudogap and antiferromagnetic correlations in the Hubbard model | |
| dc.type | text |