Abstract
We present our numerical study of three-dimensional QED with 2, 4, 6 and 8
flavors of massless two-component fermions using a parity-preserving lattice
regularization with Wilson fermions. We study the behavior of low-lying
eigenvalues of the massless improved Wilson-Dirac operator as a function of
three-dimensional physical volume, after taking the continuum limit at fixed
physical volumes. We find the following evidences against the presence of
bilinear condensate: the eigenvalues do not scale as the inverse of the
three-dimensional physical volume, and the number variance associated with
these eigenvalues do not exhibit ergodic behavior. The inverse participation
ratio (IPR) of the associated eigenvectors exhibits a multi-fractal volume
scaling. The relation satisfied by number variance and IPR suggests critical
behavior.
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