Sakai-Sugimoto Brane System at High Density

TL;DR

This paper investigates the Sakai-Sugimoto brane system at high density, revealing phase transitions such as the disappearance of color superconductivity and chiral density waves at large chemical potential, with implications for QCD phase structure.

Contribution

It provides a detailed analysis of the high-density behavior of the Sakai-Sugimoto model, highlighting phase transitions and discussing implications for strong coupling regimes.

Findings

Color superconducting phase disappears at large chemical potential.

Chiral density wave vanishes at very large compactified dimension.

Comments on the strong coupling regime and QCD phase diagram.

Abstract

The D4-D8 brane system of Sakai-Sugimoto model at high quark density is studied in the weak coupling regime. We show that the color superconducting phase (for Nc~3) or the chiral density wave (for Nc->infinity) disappears at very large chemical potential, or equivalently at very large compactified dimension that the model possesses. We also comment on the prospects in the strong coupling regime along with the QCD phase diagram.