Decoupling method for dynamical mean field theory calculations
| dc.creator | Jeschke, Harald O. | |
| dc.creator | Kotliar, Gabriel | |
| dc.date | 2004-06-21 | |
| dc.date.accessioned | 2026-07-07T06:24:25Z | |
| dc.date.available | 2026-07-07T06:24:25Z | |
| dc.description | In this paper we explore the use of an equation of motion decoupling method as an impurity solver to be used in conjunction with the dynamical mean field self-consistency condition for the solution of lattice models. We benchmark the impurity solver against exact diagonalization, and apply the method to study the infinite $U$ Hubbard model, the periodic Anderson model and the $pd$ model. This simple and numerically efficient approach yields the spectra expected for strongly correlated materials, with a quasiparticle peak and a Hubbard band. It works in a large range of parameters, and therefore can be used for the exploration of real materials using LDA+DMFT. | |
| dc.description | 30 pages, 7 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0406472 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0406472 | |
| dc.identifier | Phys. Rev. B 71, 085103 (2005) | |
| dc.identifier | doi:10.1103/PhysRevB.71.085103 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/96536 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Decoupling method for dynamical mean field theory calculations | |
| dc.type | text |