Horizon universality and anomalous conductivities

TL;DR

This paper demonstrates that chiral conductivities related to anomalous transport are universal across a broad class of strongly coupled quantum field theories with holographic duals, based on near horizon universality principles.

Contribution

It establishes the universality of anomalous chiral conductivities in strongly coupled theories with holographic duals, extending the understanding of transport phenomena in such systems.

Findings

Chiral conductivities are universal in certain strongly coupled theories.

Near horizon fluctuation equations determine conductivity values.

The result parallels shear viscosity universality in holography.

Abstract

We show that the value of chiral conductivities associated with anomalous transport is universal in a general class of strongly coupled quantum field theories. Our result applies to theories with no dynamical gluon fields and admitting a gravitational holographic dual in the large N limit. On the gravity side the result follows from near horizon universality of the fluctuation equations, similar to the holographic calculation of the shear viscosity.