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Monte Carlo Simulation of the Three Dimensional Thirring Model

Luigi Del Debbio, Simon Hands

hep-latarXiv:hep-lat/9512013

Abstract

We study the Thirring model in three spacetime dimensions, by means of Monte Carlo simulation on lattice sizes 83 and 123, for numbers of fermion flavors Nf=2,4,6. For sufficiently strong interaction strength, we find that spontaneous chiral symmetry breaking occurs for Nf=2,4, in accordance with the predictions of the Schwinger-Dyson approach. The phase transitions which occur are continuous and with critical scaling behaviour depending on Nf. For Nf=6 our results are preliminary, and no firm conclusions about the existence or otherwise of chiral symmetry breaking are possible

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