Holography, Heavy-Quark Free Energy, and the QCD Phase Diagram

Details Holography, Heavy-Quark Free Energy, and the QCD Phase Diagram Holography, Heavy-Quark Free Energy, and the QCD Phase Diagram

2010-08-18

arxiv.org/abs/1008.3116v2

Phys.Rev.D83:035015,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 5 figures, version published on PRD

Scientific paper

10.1103/PhysRevD.83.035015

We use gauge/string duality to investigate the free energy of two static color sources (a heavy quark-antiquark pair) in a Yang-Mills theory in strongly interacting matter, varying temperature and chemical potential. The dual space geometry is Anti-de Sitter with a charged black-hole to describe finite temperature and density in the boundary theory, and we also include a background dilaton field to generate confinement. The resulting phase diagram in the chemical potential-temperature $\mu-T$ plane is in a quite good agreement with lattice results and effective models of QCD.

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