Anomalous transport coefficients from Kubo formulas in Holography

Understand

In the presence of dense matter quantum anomalies give rise to two new transport phenomena.

• An anomalous current is generated either by an external magnetic field or through vortices in the fluid carrying the anomalous charge.
• The associated transport coefficients are the anomalous magnetic and vortical conductivities.
• Whereas a Kubo formula for the anomalous magnetic conductivity is well known we develop a new Kubo type formula that allows the calculation of the vortical conductivity through a two point function of the anomalous current and the momentum density.