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HK: Fachverband Physik der Hadronen und Kerne
HK 21: Schwerionenkollisionen und QCD Phasen
HK 21.7: Talk
Tuesday, March 20, 2012, 18:15–18:30, P 5
The role of fluctuations in the phase diagram of QC2D — •Naseemuddin Khan1,2, Lisa M. Haas1,2, Jan M. Pawlowski1,2, Michael M. Scherer3, and Fabian Rennecke1,2 — 1Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 62910 Heidelberg, Germany — 2ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung, Planckstr. 1, 64291 Darmstadt, Germany — 3Institut für Theoretische Festkörperphysik, RWTH Aachen, Otto-Blumenthal-Straße, 52074 Aachen, Germany
We apply the Functional Renormalization Group equation to Quantum Choromodynamics with two colours and two quark flavours. Diquark states can form colour singlets and hence a vacuum state with non-zero baryon number can be realized. We explore the phase diagram for various regions of temperature and chemical potential, and evaluate the behavior of the chiral condensate, the diquark condensate and the mass spectrum by including bosonic and fermionic fluctuations.