Abstract
Using both perturbation theory in the Euclidean formalism as well as the non-perturbative Fujikawa’s method, we verify that the chiral anomaly equation remains unaffected in continuum QCD in the presence of nonzero chemical potential, μ. We extend our considerations to lattice fermions with exact chiral symmetry and discuss the consequences for the recent Bloch-Wettig proposal for the Dirac operator at finite chemical potential . We propose a new simpler method of incorporating μ.
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