Temperature Versus Density Effects in Glassforming Liquids and Polymers:   A Scaling Hypothesis and its Consequences
  We discuss the validity and the outcome of a scaling hypothesis proposed by us some years ago, according to which the influence of the density on the slowing down of flow and relaxation in glassforming liquids and polymers is described trough a single effective interaction energy Einf(rho). We stress the formal consequences and the physical meaning of the scaling. 
Christiane Alba-Simionesco (LCPO), Gilles Tarjus (LPTMC)