Holographic symmetry energy of the nuclear matter

We calculate the symmetry energy of the nuclear matter by using the bottom-up approach, the so-called hard wall model. To consider the nuclear matter, we introduce the isospin for u- and d-quarks. We find that in the hard wall model, the symmetry energy of the nuclear matter is proportional to the square of nucleon density. We also study the symmetry energy of the quark matter in the deconfining phase. Finally, we investigate the effect of the symmetry energy on the Hawking-Page transition and show that at the given quark density, the Hawking-Page transition temperature decreases due to the symmetry energy. (C) 2012 Elsevier BM. All rights reserved.