Evidence for Deviations from Fermi-Liquid Behaviour in (2+1)-Dimensional Quantum Electrodynamics and the Normal Phase of High-$T_c$ Superconductors
| dc.creator | Aitchison, I. J. R. | |
| dc.creator | Mavromatos, N. E. | |
| dc.date | 1996-03-30 | |
| dc.date.accessioned | 2026-07-07T03:08:27Z | |
| dc.date.available | 2026-07-07T03:08:27Z | |
| dc.description | We provide evidence that the gauge-fermion interaction in multiflavour quantum electrodynamics in $(2 + 1)$-dimensions is responsible for non-fermi liquid behaviour in the infrared, in the sense of leading to the existence of a non-trivial (quasi) fixed point (cross-over) that lies between the trivial fixed point (at infinite momenta) and the region where dynamical symmetry breaking and mass generation occurs. This quasi-fixed point structure implies slowly varying, rather than fixed, couplings in the intermediate regime of momenta, a situation which resembles that of (four-dimensional) `walking technicolour' models of particle physics. Connection with the anomalous normal-state properties of certain condensed matter systems relevant for high-temperature superconductivity is briefly discussed. The relevance of the large (flavour) N expansion to the fermi-liquid problem is emphasized. | |
| dc.description | 20 pages, 1 macro | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9603198 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9603198 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/27507 | |
| dc.subject | Condensed Matter | |
| dc.title | Evidence for Deviations from Fermi-Liquid Behaviour in (2+1)-Dimensional Quantum Electrodynamics and the Normal Phase of High-$T_c$ Superconductors | |
| dc.type | text |