Time evolution of a toy semiholographic glasma

Abstract

We extend our previous study of a toy model for coupling classical Yang-Mills equations for describing overoccupied gluons at the saturation scale with a strongly coupled infrared sector modeled by AdS/CFT. Including propagating modes in the bulk we find that the Yang-Mills sector loses its initial energy to a growing black hole in the gravity dual such that there is a conserved energy-momentum tensor for the total system while entropy grows monotonically. This involves a numerical AdS simulation with a backreacted boundary source far from equilibrium.

arXiv comment17 pages, 7 figures, v2: minor changes in section 3 and acknowledgements

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• Generalized conformal quantum mechanics as an ideal observer in two-dimensional gravity