Critical Behavior of the Schwinger Model with Wilson Fermions

Details Critical Behavior of the Schwinger Model with Wilson Fermions Critical Behavior of the Schwinger Model with Wilson Fermions

1995-09-13

arxiv.org/abs/hep-lat/9509039v1

Phys.Rev. D53 (1996) 5069-5074

Physics

High Energy Physics

High Energy Physics - Lattice

12 pages LaTeX file, 10 figures in one uuencoded compressed postscript file. Report LNF-95/049(P)

Scientific paper

10.1103/PhysRevD.53.5069

We present a detailed analysis, in the framework of the MFA approach, of the critical behaviour of the lattice Schwinger model with Wilson fermions on lattices up to $24^2$, through the study of the Lee-Yang zeros and the specific heat. We find compelling evidence for a critical line ending at $\kappa = 0.25$ at large $\beta$. Finite size scaling analysis on lattices $8^2,12^2,16^2, 20^2$ and $24^2$ indicates a continuous transition. The hyperscaling relation is verified in the explored $\beta$ region.

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