Exact Diagonalization Approach for the infinite D Hubbard Model
| dc.creator | Caffarel, Michel | |
| dc.creator | Krauth, Werner | |
| dc.date | 1993-06-28 | |
| dc.date.accessioned | 2026-07-07T03:06:52Z | |
| dc.date.available | 2026-07-07T03:06:52Z | |
| dc.description | We present a powerful method for calculating the thermodynamic properties of the Hubbard model in infinite dimensions, using an exact diagonalization of an Anderson model with a finite number of sites. At finite temperatures, the explicit diagonalization of the Anderson Hamiltonian allows the calculation of Green's functions with a resolution far superior to that of Quantum Monte Carlo calculations. At zero temperature, the Lanczòs method is used and yields the essentially exact zero-temperature solution of the model, except in a region of very small frequencies. Numerical results for the half-filled case in the paramagnetic phase (quasi-particle weight, self-energy, and also real-frequency spectral densities) are presented. | |
| dc.description | 7 pages, revtex, 4 postscript figures appended, LPQ preprint (1993) | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9306057 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9306057 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/26974 | |
| dc.subject | Condensed Matter | |
| dc.title | Exact Diagonalization Approach for the infinite D Hubbard Model | |
| dc.type | text |