Overlap-Dirac fermions preserve the parity-doubling of the spectrum in a singular monopole background, while naive and Wilson-Dirac fermions break the degeneracy of the Q lowest modes even in the continuum limit.
The saga of rooted staggered quarks
1 Pith paper cite this work. Polarity classification is still indexing.
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abstract
I look at the rooting controversy from a historical point of view and review how I have come to the conclusion that these simulations involving staggered quarks must be discarded.
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A curious behavior of three-dimensional lattice Dirac operators coupled to monopole background
Overlap-Dirac fermions preserve the parity-doubling of the spectrum in a singular monopole background, while naive and Wilson-Dirac fermions break the degeneracy of the Q lowest modes even in the continuum limit.