Holographic QCD with Isospin Chemical Potential

TL;DR

This paper explores the phase structure of large N QCD with temperature and isospin chemical potential using holographic duality, revealing multiple phases separated by first order transitions, akin to QCD expectations.

Contribution

It models QCD with isospin chemical potential holographically, uncovering a detailed phase diagram with first order transitions and chiral symmetry features.

Findings

Identifies multiple phases with distinct quark condensates

Maps phase boundaries with first order transitions

Shows similarity to QCD chiral phase structure

Abstract

We consider configurations of D4-D8-\bar D8 branes which correspond to large N QCD with non-vanishing temperature and chemical potential for baryon number and isospin. We study the holographic dual of this model and find a rich phase structure. The phases, distinguished by the values of quark condensates, are separated by the surfaces of first order phase transitions. The picture is in many respects similar to the expected phase structure of QCD in the chiral limit.