Holographic nuclear matter in the AdS/QCD model

We study the physics at finite nuclear density in the framework of the AdS/QCD model with a holographic baryon field included. Based on a mean field type approach, we introduce the nucleon density as a bi-fermion condensate of the lowest mode of the baryon field and calculate the density dependence of the chiral condensate and the nucleon mass. We observe that the chiral condensate as well as the mass of nucleon decrease with increasing nuclear density. The resulting density dependence is, however, much weaker than those obtained in earlier studies based on other QCD effective theories. We also consider the mass splitting of charged vector mesons in isospin asymmetric nuclear matter.

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