  We consider the STU model as a gravity dual of a strongly-coupled plasma with
multiple anomalous U(1) currents. In the bulk we add additional background
gauge fields to include the effects of external electric and magnetic fields on
the plasma. Reducing the number of chemical potentials in the STU model to two
and interpreting them as quark and chiral chemical potential, we obtain a
holographic description of the chiral magnetic and chiral vortical effects (CME
and CVE) in relativistic heavy ion collisions. These effects formally appear as
first-order transport coefficients in the electromagnetic current. We compute
these coefficients from our model using fluid/gravity duality. We also find
analogous effects in the axial current. Finally, we briefly discuss a variant
of our model, in which the CME/CVE is realized in the late-time dynamics of an
expanding plasma.
