Chiral symmetry breaking in ${\rm QED}_{3}$ in presence of irrelevant interactions: a renormalization group study
| dc.creator | Kaveh, Kamran | |
| dc.creator | Herbut, Igor F. | |
| dc.date | 2004-11-24 | |
| dc.date | 2005-04-12 | |
| dc.date.accessioned | 2026-07-07T03:02:17Z | |
| dc.date.available | 2026-07-07T03:02:17Z | |
| dc.description | Motivated by recent theoretical approaches to high temperature superconductivity, we study dynamical mass generation in three dimensional quantum electrodynamics ${\rm QED}_{3}$) in presence of irrelevant four-fermion quartic terms. The problem is reformulated in terms of the renormalization group flows of certain four-fermion couplings and charge, and then studied in the limit of large number of fermion flavors $N$. We find that the critical number of fermions $N_c$ below which the mass becomes dynamically generated depends continuously on a weak chiral-symmetry-breaking interaction. One-loop calculation in our gauge-invariant approach yields $N_{c0} = 6$ in pure ${\rm QED}_3$. We also find that chiral-symmetry-preserving mass cannot become dynamically generated in pure ${\rm QED}_{3}$. | |
| dc.description | 7 pages, 7 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0411594 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0411594 | |
| dc.identifier | Phys.Rev. B71 (2005) 184519 | |
| dc.identifier | doi:10.1103/PhysRevB.71.184519 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/25346 | |
| dc.subject | Superconductivity | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Chiral symmetry breaking in ${\rm QED}_{3}$ in presence of irrelevant interactions: a renormalization group study | |
| dc.type | text |