A Nernst current from the conformal anomaly in Dirac and Weyl semimetals

M. N. Chernodub , A. Cortijo , M. A. H. Vozmediano

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classification ❄️ cond-mat.str-el hep-th

keywords anomalyassociatedconformalcurrentdiracelectricnernstsemimetals

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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.

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Weyl anomaly induced transport in hydrodynamics
hep-th 2026-04 unverdicted novelty 6.0

The Weyl anomaly induces a new non-dissipative current in accelerated fluids that fixes the electromagnetic-acceleration coupling at second order in hydrodynamics.