Equation of state in the pion condensation phase in the asymmetric nuclear matter using a holographic QCD model

Understand

We study the asymmetric nuclear matter using a holographic QCD model by introducing a baryonic charge in the infrared boundary.

• We first show that, in the normal hadron phase, the predicted values of the symmetry energy and it's slope parameter are comparable with the empirical values.
• We find that the phase transition from the normal phase to the pion condensation phase is delayed compared with the pure mesonic matter: The critical chemical potential is larger than the pion mass which is obtained for the pure mesonic matter.
• We also show that, in the pion condensation phase, the pion contribution to the isospin number density increases with the chemical potential, while the baryonic contribution is almost constant.