Anomaly induced transport in non-anomalous currents

TL;DR

This paper investigates whether anomalies can induce a chiral magnetic effect in non-anomalous currents by explicitly breaking symmetries, expanding understanding of anomaly-related transport phenomena.

Contribution

It demonstrates that anomalies can induce a chiral magnetic effect in non-anomalous currents through explicit symmetry breaking, a novel theoretical insight.

Findings

Anomalies can induce chiral magnetic effects in non-anomalous currents.

Explicit symmetry breaking enables anomaly-induced transport in non-anomalous sectors.

Theoretical framework for anomaly-induced transport beyond traditional anomalous currents.

Abstract

Quantum anomalies are one of the subtlest properties of relativistic field theories. They give rise to non-dissipative transport coefficients in the hydrodynamic expansion. In particular a magnetic field can induce an anomalous current via the chiral magnetic effect. In this work we explore the possibility that anomalies can induce a chiral magnetic effect in non-anomalous currents as well. This effect is implemented through an explicit breaking of the symmetries.