Dielectric correction to the Chiral Magnetic Effect

Understand

We derive an electric current density $j_{em}$ in the presence of a magnetic field $B$ and a chiral chemical potential $\mu_5$.

• We show that $j_{em}$ has not only the anomaly-induced term $\propto \mu_5 B$ (i.e.
• Chiral Magnetic Effect) but also a non-anomalous correction which comes from interaction effects and expressed in terms of the susceptibility.
• We find the correction characteristically dependent on the number of quark flavors.