# QCD phase diagram with chiral imbalance in NJL model: duality and lattice QCD results

## TL;DR

This paper explores the QCD phase diagram considering chiral imbalance using the NJL model, demonstrating duality supported by lattice QCD results and clarifying the effect of chiral chemical potential on the pseudo-critical temperature.

## Contribution

It introduces the concept of duality in the QCD phase diagram with chiral imbalance and validates it with lattice QCD results, clarifying the behavior of the pseudo-critical temperature.

## Key findings

- Lattice QCD supports the existence of duality in real QCD.
- Pseudo-critical temperature rises with increasing chiral chemical potential.
- Duality provides a solid foundation for understanding chiral imbalance effects.

## Abstract

In addition to temperature and baryon chemical potential there are other parameters that matter in the real quark matter. One of them is isospin asymmetry which does exist in nature, for example, in the compact stars and in heavy ion collisions. The chiral imbalance, the difference between left- and right-handed quarks, is another phenomenon that could occur in quark matter. We have shown that lattice QCD results support the existence of the approximate duality in real QCD. The rise of pseudo-critical temperature with increase of chiral chemical potential $\mu_{5}$ (the much debated effect recently, a lot of studies on this contradict each other) has been established in terms of just duality notion, hence reinforce confidence in this result and put it on the considerably more solid ground.