  Recent experiments have uncovered evidence of the strongly coupled nature of
the graphene: the Wiedemann-Franz law is violated by up to a factor of 20 near
the charge neutral point. We describe this strongly-coupled plasma by a
holographic model in which there are two distinct conserved U(1) currents. We
find that our analytic results for the transport coefficients for two current
model have a significantly improved match to the density dependence of the
experimental data than the models with only one current. The additive structure
in the transports coefficients plays an important role. We also suggest the
origin of the two currents.
