Supersymmetry and Theory of Heavy-Fermions
| dc.creator | Pépin, C. | |
| dc.creator | Lavagna, M. | |
| dc.date | 1997-09-24 | |
| dc.date.accessioned | 2026-07-07T09:12:13Z | |
| dc.date.available | 2026-07-07T09:12:13Z | |
| dc.description | We propose a new approach to the Kondo lattice in order to describe simultaneously the Kondo effect and the local magnetism. This approach relies on an original representation of the $S=1/2$ impurity spin in which the different degrees of freedom are represented by fermionic as well as bosonic variables. The magnetic instability is found at $J_c/D =0.67$ in definite improvement compared to usual fermionic mean- field theories. The dynamical susceptibility contains an inelastic peak in addition to the standard Lindhard-type Fermi liquid contribution. The Fermi surface sum rule includes $n_c+1$ states corresponding to large Fermi surfaces. | |
| dc.description | 4 pages, 3 figures, RevTeX | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9709256 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9709256 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/151948 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Supersymmetry and Theory of Heavy-Fermions | |
| dc.type | text |