Two‐component quark‐gluon plasma in stringy models

The two‐component liquid model reproduces the basic properties of the quark‐gluon plasma as observed in heavy‐ion collisions. The key dynamic element of the model is existence of a light scalar. We argue that existence of such a scalar is a generic feature of the stringy models of quantum chromodynamics. The lattice data provides evidence for a condensed, three‐dimensional scalar field as well. We outline a possible crucial check of the model on the lattice.