Towards a Holographic Model of the QCD Phase Diagram

Details Towards a Holographic Model of the QCD Phase Diagram Towards a Holographic Model of the QCD Phase Diagram

2011-09-12

arxiv.org/abs/1109.2633v2

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, 9 figures, v2: minor corrections, Invited contribution to an AdS/CFT edition of Journal of Physics G

Scientific paper

We describe the temperature-chemical potential phase diagrams of holographic models of a range of strongly coupled gauge theories that display chiral symmetry breaking/restoration transitions. The models are based on the D3/probe-D7 system but with a phenomenologically chosen running coupling/dilaton profile. We realize chiral phase transitions with either temperature or density that are first or second order by changing the dilaton profile. Although the models are only caricatures of QCD they show that holographic models can capture many aspects of the QCD phase diagram and hint at the dependence on the running coupling.

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