Non-compact QED(3) coupled to a four-fermi interaction
High Energy Physics - Lattice
2009-11-10 v1 Superconductivity
High Energy Physics - Phenomenology
Abstract
We present preliminary numerical results for the three dimensional non-compact QED with a weak four-fermion term in the lattice action. Approaches based on Schwinger-Dyson studies, arguments based on thermodynamic inequalities and numerical simulations lead to estimates of the critical number of fermion flavors (below which chiral symmetry is broken) ranging from to . The weak four-fermion coupling provides the framework for an improved algorithm, which allows us to simulate the chiral limit of massless fermions and expose delicate effects.
Keywords
Cite
@article{arxiv.hep-lat/0409038,
title = {Non-compact QED(3) coupled to a four-fermi interaction},
author = {J. B. Kogut and C. G. Strouthos and I. N. Tziligakis},
journal= {arXiv preprint arXiv:hep-lat/0409038},
year = {2009}
}
Comments
3 pages, Contribution to Lattice2004(chiral), Fermilab, June 21-26, 2004