Renormalization Group Approach to Spectral Properties of the Two-Channel Anderson Impurity Model
| dc.creator | Anders, Frithjof B. | |
| dc.date | 2004-07-07 | |
| dc.date.accessioned | 2026-07-07T07:36:12Z | |
| dc.date.available | 2026-07-07T07:36:12Z | |
| dc.description | The impurity Green function and dynamical susceptibilties for the two-channel Anderson impurity model are calculated. An exact expression for the self-energy of the impurity Green function is derived. The imaginary part of the self-energy scales as $\sqrt{|\w/T_K|}$ for $T\to 0$ serving as a hallmark for non-Fermi behavior. The many-body resonance is pinned to a universal value $1/(2πΔ)$ at $\w=0$. Its shape becomes increasingly more symmetric for the Kondo-regimes of the model. The dynamical susceptibilities are governed by two energy scales $T_K$ and $T_h$ and approach a constant value for $\w\to 0$, whereas relation $χ''(\w)\propto \w$ holds for the single channel model. | |
| dc.description | 4 pages, 4 figure, revtex | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0407169 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0407169 | |
| dc.identifier | Phys. Rev. B 71, 121101 (2005) | |
| dc.identifier | doi:10.1103/PhysRevB.71.121101 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/120344 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Renormalization Group Approach to Spectral Properties of the Two-Channel Anderson Impurity Model | |
| dc.type | text |