Quantum electrodynamics in a (2+1)-dimensional space-time has been object of studies both as effective theory for the pseudogap phase of high-Tc superconductors and for the theoreticalinvestigation of mechanisms of confinement in presence of matter fields. We discretize the theoryusing both compact and noncompact formulations, analyze the behavior of the chiral condensateand of the monopole density and compare them. Finally we draw some conclusions about the possible equivalence of the two lattice formulations.
QED(3) on a space-time lattice: a comparison between compact and noncompact formulation
GIULIANO, Domenico;PAPA, Alessandro;
2005-01-01
Abstract
Quantum electrodynamics in a (2+1)-dimensional space-time has been object of studies both as effective theory for the pseudogap phase of high-Tc superconductors and for the theoreticalinvestigation of mechanisms of confinement in presence of matter fields. We discretize the theoryusing both compact and noncompact formulations, analyze the behavior of the chiral condensateand of the monopole density and compare them. Finally we draw some conclusions about the possible equivalence of the two lattice formulations.File in questo prodotto:
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