Exact Zero-Modes of the Compact QED Dirac Operator
arXiv:hep-lat/0103022 · doi:10.1016/S0370-2693(01)00767-5
Abstract
We calculate the low-lying eigenmodes of the Neuberger overlap-Dirac operator for 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.
arXiv comment10 pages, 4 figures, minor changes (typos corrected, table updated, reference added)
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- Are Topological Charge Fluctuations in QCD Instanton Dominated?
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