The 3+1D staggered fermion Hamiltonian has conserved charges generating SU(2)_A in the continuum, and their mixed lattice anomaly with the vector charge becomes trivial once the continuum QFT is reached.
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Non-singlet conserved charges and anomalies in 3+1 D staggered fermions
The 3+1D staggered fermion Hamiltonian has conserved charges generating SU(2)_A in the continuum, and their mixed lattice anomaly with the vector charge becomes trivial once the continuum QFT is reached.