Magnetotransport phenomena related to the chiral anomaly in Weyl semimetals

We present a theory of magnetotransport phenomena related to the chiral anomaly in Weyl semimetals. We show that conductivity, thermal conductivity, thermoelectric, and the sound absorption coefficients exhibit strong and anisotropic magnetic field dependencies. We also discuss properties of magnetoplasmons and magnetopolaritons, whose existences are entirely determined by the chiral anomaly. Finally, we discuss the conditions of applicability of the quasiclassical description of electron transport phenomena related to the chiral anomaly.

Figure 1

Spectrum of the two branches in the polariton region. The frequency $\omega$ (in units of ${\omega }_0$) is plotted as a function of the wave vector (in units of ${\omega }_0/c$) at $q_x=0$. The $q_z$ axis is directed from right to left, and the $q_y$ axis into the page. The two branches cross at $q_y=0$ and $q_z={\omega }_0/c$.