Holographic entropy production in a Bjorken expanding hot and dense strongly coupled quantum fluid

The authors study the dynamics of droplets quark-gluon plasma created in heavy iron collisions. relativistic quantum fluid undergoes Bjorken flow expansion and is modeled as conformal $N=4$ supersymmetric Yang-Mills plasma. In particular, they investigate holographic entropy production far from equilibrium where horizon area no longer a proper measure for but dynamic apparent assumed to be right dual observable.