QCD phase transition at real chemical potential with canonical approach

TL;DR

This paper investigates the QCD phase transition at real chemical potential using a canonical approach, calculating key observables across a wide temperature range to identify signals of deconfinement and chiral restoration.

Contribution

It introduces a canonical approach to study the finite density phase transition in lattice QCD at real chemical potential, providing new insights into the phase structure.

Findings

Signals of deconfinement transition observed below Tc

Chiral restoration signals detected at real chemical potential

Phase transition behaviors characterized across temperature range

Abstract

We study the finite density phase transition in the lattice QCD at real chemical potential. We adopt canonical approach and the canonical partition function is constructed for Nf=2 QCD. After derivation of the canonical partition function we calculate observables like the pressure, the quark number density, its second cumulant and the chiral condensate as a function of the real chemical potential. We covered a wide range of temperature region starting from the confining low to the deconfining high temperature. We observe signals for the deconfinement and the chiral restoration phase transition at real chemical potential below Tc starting from the confining phase.