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GR: Fachverband Gravitation und Relativitätstheorie
GR 13: Schwarze Löcher – Lösungen III
GR 13.2: Talk
Thursday, March 1, 2012, 10:10–10:30, ZHG 002
Holographic Approach to Screening and Running Coupling in Strongly Coupled Plasmas — •Konrad Schade1,2 and Carlo Ewerz1,2 — 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.