Non-compact QED(3) coupled to a four-fermi interaction

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 $N_{fc}=1$ to $N_{fc}=4$. 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.

arXiv comment3 pages, Contribution to Lattice2004(chiral), Fermilab, June 21-26, 2004

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Cited by in corpus (2)

• Chiral symmetry breaking and monopole dynamics in non-compact QED3 coupled to a four-fermi interaction
• Four Fermion Interactions in Non-Abelian Gauge Theory