Early quark deconfinement in compact star astrophysics and heavy-ion collisions

TL;DR

This paper develops a relativistic density functional model for color-superconducting quark matter, constructing hybrid equations of state that suggest early quark deconfinement influences astrophysical phenomena and heavy-ion collision outcomes.

Contribution

It introduces a novel quark-hadron transition model incorporating pasta phases and quark-hadron continuity, applicable to compact stars and heavy-ion collisions.

Findings

Early quark deconfinement driven by strong diquark pairing.

Model aligns with observational data of compact stars.

Trajectories of matter evolution resemble supernovae and merger regimes.

Abstract

Based on a recently developed relativistic density functional approach to color-superconducting quark matter and a novel quark-hadron transition construction which phenomenologically accounts for the effects of inhomogeneous pasta phases and quark-hadron continuity, we construct a class of hybrid equations of state applicable at the regimes typical for compact star astrophysics and heavy ion collisions. We outline that early quark deconfinement is a notable consequence of strong diquark pairing providing a good agreement with the observational data and driving the trajectories of the matter evolution during the supernovae explosions toward the regimes typical for the compact star mergers and heavy-ion collisions.