Thermodynamics of soft wall AdS/QCD at finite chemical potential

TL;DR

This paper investigates the thermodynamic behavior of the soft wall AdS/QCD model at finite chemical potential, comparing phase transitions and quark susceptibility with the hard wall model to deepen understanding of QCD thermodynamics.

Contribution

It introduces a finite chemical potential into the soft wall AdS/QCD model and compares its thermodynamic properties with the hard wall model, highlighting new insights into QCD phase transitions.

Findings

The phase transition is characterized by the difference in action densities.

Quark number susceptibility is computed for both models.

Results provide a comparison between soft wall and hard wall models at finite chemical potential.

Abstract

We study the thermodynamics of soft wall model in AdS/QCD framework. The low temperature phase of QCD is described by thermal AdS and high temperature phase by AdS Black hole solution of five dimensional gravity with negative cosmological constant. The chemical potential is introduced via the solution of U(1) vector field in the bulk. The difference of action densities in two phases is studied and the results are compared with hard wall model. The quark number susceptibility is also calculated in both the models.