Description |
We study the effects of finite chemical potential on the
chiral anomaly equation in continuum QCD both perturbatively, in Euclidean spacetime, and
non-perturbatively, using Fujikawa's formalism. We
verify that the anomaly equation has no finite density corrections. We extend our study to lattice fermions
with exact chiral symmetry on the lattice and discuss
some of the consequences for such fermion operators at finite density. Finally we propose a simple method for incorporating chemical potential on the lattice.
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