Holographic QCD phase diagram for a rotating plasma in the Hawking-Page approach

TL;DR

This paper explores how rotation and chemical potential influence the confinement/deconfinement transition in strongly interacting matter using holographic models, revealing how these factors affect the critical temperature and phase boundaries.

Contribution

It introduces a holographic framework incorporating rotation and chemical potential to analyze the phase diagram of QCD-like matter, extending previous models to include angular momentum effects.

Findings

Critical temperature depends on rotation and chemical potential.

Phase transition boundaries shift with increasing angular momentum.

Low-temperature behavior shows dependence of transition on rotation.

Abstract

We investigate the combined effect of rotation and finite chemical potential in the confinement/deconfinement transition of strongly interacting matter. The holographic description consists of a five-dimensional geometry that contains a black hole (BH) in the deconfined (plasma) phase. The geometry is equipped with some cut-off that introduces an infrared energy scale. We consider two possibilities: the so-called hard wall and soft wall AdS/QCD models. The transition between the plasma and hadronic phases is represented holographically as a Hawking-Page transition between geometries with and without a black hole. The gravitational dual of the rotating plasma at finite density is given by a Reissner-Nordstr\"om (RN) charged anti-de Sitter (AdS) BH with non-zero angular momentum. This analysis provides the critical temperature of deconfinement as a function of the quark chemical potential and the plasma rotational velocity. For the case of very low temperatures, the dependence of the critical values of the chemical potential for the transition to occur at $ T \to 0 $ on the rotation is found.