Title: A Nernst current from the conformal anomaly in Dirac and Weyl semimetals,
Abstract: We show that a conformal anomaly in Weyl/Dirac semimetals generates a bulk
electric current perpendicular to a temperature gradient and the direction of a
background magnetic field. The associated conductivity of this novel
contribution to the Nernst effect is fixed by a beta function associated with
the electric charge renormalization in the material.