Holographic entanglement entropy, deformed black branes, and deconfinement in AdS/QCD

TL;DR

This paper investigates the confinement/deconfinement phase transition in AdS/QCD using holographic entanglement entropy and deformed black branes, linking theoretical models with experimental hadronic data.

Contribution

It introduces a novel approach employing deformed black branes to study phase transitions in AdS/QCD via holographic entanglement entropy.

Findings

HEE acts as an order parameter for phase transition

Critical temperature aligns with experimental data

Binding energy and critical length are characterized

Abstract

A family of deformed black branes is employed to examine the confinement/deconfinement phase transition in AdS/QCD. The holographic entanglement entropy (HEE) plays the role of the order parameter driving the confinement/deconfinement phase transition. The binding energy of quark-antiquark bound states and the critical length that makes a null variation of the HEE, together with the critical temperature separating the deconfined quark-gluon plasma to the confined hadronic phase, are discussed in the deformed black brane background, matching current experimental hadronic data.