Center Domains and their Phenomenological Consequences
  We argue that the domain structure of deconfined QCD matter, which can be inferred from the properties of the Polyakov loop, can simultaneously explain the two most prominent experimentally verified features of the quark-gluon plasma, namely its large opacity as well as its near ideal fluid properties. 
Masayuki Asakawa, Steffen A. Bass and Berndt M\"uller
nucl-th hep-ph