Phase structure and chiral limit of compact lattice QED with Wilson fermions
A. Hoferichter, V. K. Mitrjushkin, M. Müller-Preussker, Th. Neuhaus
Abstract
We study the phase structure and chiral limit of 4d compact lattice QED with Wilson fermions (both dynamical and quenched). We use the standard Wilson action (WA) and also the modified action (MA) with some lattice artifacts suppressed. We show that lattice artifacts influence the distributions of eigenvalues ~λi~ of the fermionic matrix especially for small values of ~λi~. Our main conclusion is that the chiral limit of compact QED can be efficiently located using different techniques. Sorry, figures are not included and can be sent by ordinary mail or Fax.
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