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The index theorem on the lattice with improved fermion actions
We consider a Wilson-Dirac operator with improved chiral properties. We show that, for arbitrarily rough gauge fields, it satisfies the index theorem if we identify the zero modes with the small real eigenvalues of the fermion operator and use the geometrical definition of topological charge. This i...
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| Lenguaje: | eng |
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1998
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| Acceso en línea: | https://dx.doi.org/10.1016/S0550-3213(98)00533-1 http://cds.cern.ch/record/344029 |