Rotation induced color confinement

TL;DR

This paper investigates how rotation influences the properties of dense QCD matter, revealing a non-monotonous effect on gluon mass and confinement, with rotation potentially canceling screening effects and leading to gluon confinement or weak interactions.

Contribution

It introduces a covariant approach to study rotation effects on gluon mass in dense QCD matter, highlighting non-monotonous behavior and conditions for gluon confinement due to rotation.

Findings

Rotation causes non-monotonous changes in gluon mass.

Rotation can cancel screening effects in low-density QCD matter.

At high rotation, matter behaves like a weakly interacting gas.

Abstract

The rotation effect on the QCD properties is an open question. We study the dynamic gluon mass in a dense QCD matter, the rotation is introduced by taking a covariant transformation between the flat and curved spaces. The law of causality which restricts the rotation strength of the system is carefully considered in the calculation. we find that the rotation effect is not monotonous. Overall, it behaves like an anti-screening effect, reflecting in the decreasing gluon mass, but the strength changes with the rotation. For a QCD matter with low baryon density, the screening effect in the flat space can be completely canceled by the rotation, and gluons are confined in a strongly rotating matter. When the rotation is extremely high, the matter approaches to a weakly interacting gas.