English

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

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

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