Color superconductivity for high density nuclear matter

In this paper authors built a relation between the thermodynamical theory of the phase transition and field theory. The authors emphasized that in the quantum field theory authors have to introduce the order parameter fields. Then the discussion of the phase transition is closed to the creation of the Goldstone bosons. If authors only discuss the first order transition, the Goldstone bosons field are sufficient. If authors want to discuss the second order transition, authors have to discuss a set of fields that constructs a representation of a symmetry group. The authors also apply this concept to color superconductivity. (author)