Frankfurt 2014 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 13: Schwerionenkollisionen und QCD Phasen
HK 13.9: Vortrag
Montag, 17. März 2014, 18:45–19:00, HZ 7
Two-loop thermodynamics of warm and dense (isospin and baryo-chemical potential) perturbative QCD — •Thorben Graf1, Juergen Schaffner-Bielich2, and Eduardo S. Fraga3 — 1Institut für Theoretische Physik, Goethe Universität, Frankfurt am Main, Germany — 2Institut für Theoretische Physik, Goethe Universität, Frankfurt am Main, Germany — 3Instituto de Física, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
We present a perturbative calculation of the thermodynamical potential of quantum chromodynamics at nonvanishing temperatures for different values of the isospin and baryo-chemical potential.
A comparison to recent lattice calculations at nonvanishing isospin is performed and the region of the break-down of the perturbative calculations are delineated.
Finally, we study the thermodynamic potential at high chemical potentials and low temperatures where the perturbative scheme should be also applicable.