Pairing Phase Transitions of Matter under Rotation

TL;DR

This paper explores how global rotation affects pairing phenomena in fermionic matter, revealing a suppression of zero angular momentum pairing and introducing a new phase diagram with a critical point.

Contribution

It provides the first detailed analysis of pairing suppression under rotation and maps out a novel phase diagram in hot dense QCD matter.

Findings

Rotation suppresses zero angular momentum pairing states.

A new phase diagram with a critical point is identified.

Chiral condensation and color superconductivity are affected by rotation.

Abstract

The phases and properties of matter under global rotation have attracted much interest recently. In this paper we investigate the pairing phenomena in a system of fermions under the presence of rotation. We find that there is a generic suppression effect on pairing states with zero angular momentum. We demonstrate this effect with the chiral condensation and the color superconductivity in hot dense QCD matter as explicit examples. In the case of chiral condensation, a new phase diagram in the temperature-rotation parameter space is found, with a nontrivial critical point.