Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2001-10-11
Nucl.Phys.Proc.Suppl.106:592-597,2002
Physics
High Energy Physics
High Energy Physics - Lattice
Lattice2001(confinement), 6 pages, 9 figures
Scientific paper
10.1016/S0920-5632(01)01788-1
We consider $4d$ compact lattice QED in the quenched approximation. First, we briefly summarize the spectrum of the staggered Dirac operator and its connection with random matrix theory. Afterwards we present results for the low-lying eigenmodes of the Neuberger overlap-Dirac operator. In the strong coupling phase we find exact zero-modes. Subsequently we discuss possibly related topological excitations of the U(1) lattice gauge theory.
Berg Bernd A.
Heller Urs M.
Markum Harald
Pullirsch Rainer
Sakuler Wolfgang
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