Exact Zero-Modes of the Compact QED Dirac Operator
classification
✦ hep-lat
keywords
latticecompactexactoperatorzero-modesapproximationattemptcalculate
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We calculate the low-lying eigenmodes of the Neuberger overlap-Dirac operator for $4d$ compact lattice QED in the quenched approximation. In the strong coupling phase we find exact zero-modes, quite similar as in non-Abelian lattice QCD. Subsequently we make an attempt to identify responsible topological excitations of the U(1) lattice gauge theory.
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