Boost-invariant flow on non-conformal plasmas

I will report on a generalization of the Bjorken flow, a solution of hydrodynamics under the assumption of boost-invariance, whose dual gravity solution was found by Janik and Peschanski, to a class of non-conformal theories described by an Einstein+dilaton model in the bulk. The results could be relevant to the thermalization of the quark-gluon plasma of QCD.