We present a detailed analysis, in the framework of the MFA approach, of the critical behavior 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 k=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.
Critical behavior of the Schwinger model with Wilson fermions
GALANTE, ANGELO;
1996-01-01
Abstract
We present a detailed analysis, in the framework of the MFA approach, of the critical behavior 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 k=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.File in questo prodotto:
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