Quarkyonic Matter and the Revised Phase Diagram of QCD

TL;DR

This paper discusses a proposed new phase of QCD matter called Quarkyonic Matter, which exists at high baryon densities, is confining, and exhibits approximate chiral symmetry, affecting the QCD phase diagram.

Contribution

It introduces the concept of Quarkyonic Matter and revises the QCD phase diagram based on large Nc approximations and model computations.

Findings

Quarkyonic Matter exists at high baryon densities.

It is confining but can have densities much larger than Λ_QCD.

It is approximately chirally symmetric.

Abstract

At high baryon number density, it has been proposed that a new phase of QCD matter controls the physics. This matter is confining but can have densities much larger than $\Lambda^3_{QCD}$ QCD. Its existence is argued from large Nc approximations, and model computations. It is approximately chirally symmetric.