HIC for FAIR logo Nuclear Physics Colloquium

Location:  ITP Science Campus Riedberg, Max-von-Laue-Str. 1, room 02.116
Time: Thursday, May 23, 2013,  4:30-5:30pm
(plus 10min for discussion)
Contact: hees@fias.uni-frankfurt.de

Turbulent Thermalization of the QGP

Sören Schlichting (University Heidelberg)

The past decades of heavy-ion physics have revealed remarkable properties of the Quark Gluon Plasma formed in collider experiments at RHIC and the LHC. One of the most striking observations is the apparent behavior of the Quark Gluon Plasma as a nearly perfect fluid. However, the question of how these features emerge ab initio in a heavy-ion collision, and to what extent a thermalized Quark Gluon Plasma is achieved is an outstanding problem in theoretical physics. In this talk I will address the problem of thermalization of the Quark Gluon Plasma in an idealized weak-coupling approach. We employ classical-statistical real-time lattice simulations as a first-principle approach, to demonstrate the existence of a non-thermal fixed point in the space-time evolution of the plasma. Most remarkably, we find that the thermalization process is governed by a universal attractor, which exhibits the self-similar dynamics characteristic of wave turbulence, as observed in a large variety of strongly correlated many-body systems across di fferent energy scales.

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