Universal observable as a signal of chiral anomaly in lattice Weyl fermions

Shi Chen, Yu Chen

The Adler-Bell-Jackiw chiral anomaly is shown to retain its Lorentz-invariant form, ${\partial }_{\mu }{J}_5^{\mu }\propto \mathbf{E}\cdot \mathbf{B}$, in lattice Weyl systems beyond moderate m…