Anomalous transport and massive gravity theories

TL;DR

This paper reviews the Kubo formalism for anomalous transport in relativistic fluids and applies it to a holographic massive gravity model, revealing a phase with negligible electric conductivity but nonzero anomalous conductivities.

Contribution

It introduces a holographic massive gravity model to study anomalous transport, highlighting a novel phase with unique conductivity properties.

Findings

Electric DC conductivity is negligible in the new phase.

Anomalous conductivities remain nonvanishing despite negligible electric conductivity.

The formalism incorporates vorticity and electromagnetic fields in holographic models.

Abstract

We review the Kubo formulae relevant to study anomalous transport properties of relativistic fluids. We apply this formalism to perform a computation of the transport coefficients in a holographic massive gravity model including vorticity and external electromagnetic fields. We find an interesting phase in which the electric DC conductivity is negligible, while the anomalous conductivities turn out to be nonvanishing.