Dresden 2013 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 74: Schwerionenkollisionen und QCD Phasen
HK 74.8: Vortrag
Donnerstag, 7. März 2013, 18:45–19:00, HSZ-201
Holographic reconstruction of the dilaton potential in a gravity dual of the pure gluon plasma — •Roman Yaresko1,2 and Burkhard Kampfer1,2 — 1Helmholtz-Zentrum Dresden-Rossendorf, POB 51 01 19, 01314 Dresden, Germany — 2TU Dresden, Institut für Theoretische Physik, 01062 Dresden, Germany
Employing new precision data of the SU(3) Yang-Mills theory (gluon plasma) the potential of the gravity dual with a dilaton field is reconstructed in a wide temperature range above the deconfinement temperature Tc. The compact form of the potential employed recently by Gubser is shown to reproduce the lattice data with suitable parameter adjustments. The ratio of bulk-to-shear viscosity exhibits within such a setting a pronounced increase when approaching Tc+.