  The time evolution of the energy transport triggered in a strongly coupled
system by a temperature gradient is holographically related to the evolution of
an asymptotically AdS black brane. We study the far-from-equilibrium properties
of such a system by using the AdS/CFT correspondence. In particular, we
describe the appearance of a steady state, and study the information flow by
computing the time evolution of the holographic entanglement entropy. Some
universal properties of the quenching process are presented.
