Lattice fermions with complex mass
classification
✦ hep-lat
keywords
actionfermionsmassborrowscomplexcomplex-valuedcorrectlydescribe
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We present evidence in the Schwinger model that rooted staggered fermions may correctly describe the m<0 sector of a theory with an odd number of flavors. We point out that in QCD-type theories with a complex-valued quark mass every non-chiral action essentially "borrows" knowledge about the theta-transformation properties from the overlap action.
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