A New Phase at Finite Quark Density from AdS/CFT

Details A New Phase at Finite Quark Density from AdS/CFT A New Phase at Finite Quark Density from AdS/CFT

2006-11-02

arxiv.org/abs/hep-th/0611021v1

J.Korean Phys.Soc.52:1734-1739,2008

Physics

High Energy Physics

High Energy Physics - Theory

4 pages, revtex

Scientific paper

10.3938/jkps.52.1734

We explore phases of N=2 super Yang-Mills theory at finite quark density by introducing quark chemical potential in a D3-D7 setup. We formulate the thermodynamics of brane embeddings and find that we need to renormalize the finite chemical potential due to the divergence of the thermodynamic potentials and we find that the density versus chemical potential equation of state has rich structure. This yields two distinct first order phase transitions in a small window of quark density. In order words, there is a new first order phase transition in the region of deconfined quarks. In this new phase, the chemical potential is a decreasing function of the density. We suggest that this might be relevant to the difference in sQGP--wQGP phases of QCD.

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