Frankfurt 2014 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 16: Hauptvorträge I

HK 16.3: Hauptvortrag

Dienstag, 18. März 2014, 12:20–13:00, HZ 1+2

Thermalization Dynamics in Ultra-Relativistic Nuclear Collisions — •Juergen Berges — ITP Heidelberg

In recent years, significant progress in a first principles understanding of non-Abelian plasmas out-of-equilibrium has been achieved in two limiting cases. One of these is the study of the strong-coupling limit using gauge-string dualities in supersymmetric Yang-Mills theories. The other case that is amenable to ab initio calculations is Quantum Chromodynamics in the weak-coupling limit. The colliding nuclei in this limit are described in the Color Glass Condensate framework. The dynamics of the non-equilibrium Glasma created in such a collision is that of highly occupied gluon fields with given typical momentum. Since the characteristic occupancies are large, the gauge fields are strongly correlated even for small gauge coupling. The dynamics of highly occupied gauge fields is classical in nature and can be studied from first principles using real-time lattice gauge theory techniques. I'll report on the largest real-time simulations to date and how they provide unprecedented quantitative understanding of the thermalization process.