The Chiral Limit of Non-compact QED\(_3\). (English) Zbl 1097.81616
Summary: Non-compact QED\(_3\) with four-component fermion flavor content N\(_f \geq\) 2 is studied numerically near the chiral limit to understand its chiral symmetry breaking features. We monitor discretization and finite size effects on the chiral condensate by simulating the model at different values of the gauge coupling on lattices ranging in size from 10\(^3\) to 50\(^3\). Our upper bound for the dimensionless condensate \(\beta^2\langle\overline{\Psi}\psi\rangle\) in the N\(_f\) = 2 case is 5 \(\times\) 10\(^{-5}\).
MSC:
| 81T13 | Yang-Mills and other gauge theories in quantum field theory |
| 81T25 | Quantum field theory on lattices |
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