Anomalous Scaling of the SO(8) Symmetric Phases in the Two-Leg Ladder
| dc.creator | Lin, Hsiu-Hau | |
| dc.date | 2000-10-01 | |
| dc.date.accessioned | 2026-07-07T02:38:53Z | |
| dc.date.available | 2026-07-07T02:38:53Z | |
| dc.description | We carry out a complete analytical stability study for the SO(8) symmetric phases in the weakly-interacting two-leg ladder. It is shown that the SO(8) symmetry is robust under generic perturbations. Since there are no fixed points in the one-loop renormalization group equations, the conventional classification of relevant and irrelevant perturbations fails in this case. A new classification is defined and explained in detail. It leads to the anomalous scaling in the ratios of excitation gaps and an universal exponent 1/3 is extracted. This new method is also applied to the well studied 2D Ising model and similar exponent is calculated. | |
| dc.description | 4 pages, 3 figures, REVTeX format | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0010011 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0010011 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/16850 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Anomalous Scaling of the SO(8) Symmetric Phases in the Two-Leg Ladder | |
| dc.type | text |