Low-energy electron-electron bound states in planar QED
Abstract
In this talk, we present a parity-preserving QED3 model with spontaneous breaking of a local U(1)-symmetry. The breaking is accomplished by a potential of the phi^6-type. It is shown that a net attractive interaction appears in the Moeller scattering (s- and p-wave scatterings between two electrons) as mediated by the gauge field and a Higgs scalar. We show, by solving numerically the Schroedinger equation for both the scattering potentials (s- and p-wave), that in the weak-coupling regime only s-wave bound states appear, whereas in the strong-coupling regime s- and p-wave bound states show up. Also, we discuss possible applications of the model to the phenomenology of high-Tc superconductors and to the re-entrant superconductivity effect.
Cite
@article{arxiv.hep-th/0011293,
title = {Low-energy electron-electron bound states in planar QED},
author = {H. R. Christiansen and O. M. Del Cima and M. M. Ferreira and J. A. Helayel-Neto},
journal= {arXiv preprint arXiv:hep-th/0011293},
year = {2007}
}
Comments
5 pages, latex, contribution to the proceedings of the "XXI Encontro Nacional de Fisica de Particulas e Campos", October 2000, Sao Lourenco, Brazil