The Gutzwiller wave function as a disentanglement prescription
| dc.creator | Sunko, D. K. | |
| dc.date | 2004-04-06 | |
| dc.date | 2004-10-09 | |
| dc.date.accessioned | 2026-07-07T02:57:29Z | |
| dc.date.available | 2026-07-07T02:57:29Z | |
| dc.description | The Gutzwiller variational wave function is shown to correspond to a particular disentanglement of the thermal evolution operator, and to be physically consistent only in the temperature range U<<kT<<E_F, the Fermi energy of the non-interacting system. The correspondence is established without using the Gutzwiller approximation. It provides a systematic procedure for extending the ansatz to the strong-coupling regime. This is carried out to infinite order in a dominant class of commutators. The calculation shows that the classical idea of suppressing double occupation is replaced at low temperatures by a quantum RVB-like condition, which involves phases at neighboring sites. Low-energy phenomenologies are discussed in the light of this result. | |
| dc.description | Final version as accepted in EPJ B, 10 pages, no figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0404139 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0404139 | |
| dc.identifier | Eur. Phys. J. B 42, 337-344 (2004) | |
| dc.identifier | doi:10.1140/epjb/e2004-00388-1 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/23683 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | The Gutzwiller wave function as a disentanglement prescription | |
| dc.type | text |