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GR: Fachverband Gravitation und Relativitätstheorie

GR 13: Schwarze Löcher – Lösungen III

GR 13.2: Vortrag

Donnerstag, 1. März 2012, 10:10–10:30, ZHG 002

Holographic Approach to Screening and Running Coupling in Strongly Coupled Plasmas — •Konrad Schade^1,2 and Carlo Ewerz^1,2 — ¹Institut für Theoretische Physik, Uni Heidelberg, Philosophenweg 16, D-69120 Heidelberg, Germany — ²ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, D-64291 Darmstadt, Germany

We use the AdS/CFT correspondence to study the screening distance and free energy of quark-antiquark pairs in strongly coupled, nonconformal plasmas at finite temperature. There, the screening distance of nonconformal plasmas is always larger than the corresponding conformal value that can be computed in the dual gravity theory of N = 4 super Yang-Mills. We conjecture that this behaviour is true for an even larger class of theories.

Furthermore, a running coupling is computed that allows us to study a large class of nonconformal, strongly coupled plasmas and the results are in good agreement to Lattice QCD results.